int main() {
const char password1[] = "root";
const char password2[] = "long password test";
const char password3[] = "saf789yasfbsd89f";
ulong result[2];
char scrm[9]; // SCRAMBLE_LENGTH_323+1
struct rand_struct rand_st;
int i;
// test hash_password
hash_password((ulong*)result, password1, strlen(password1));
printf("hash_password(\"%s\") = %08x%08x\n", password1, result[0], result[1]);
hash_password((ulong*)result, password2, strlen(password2));
printf("hash_password(\"%s\") = %08x%08x\n", password2, result[0], result[1]);
hash_password((ulong*)result, password3, strlen(password3));
printf("hash_password(\"%s\") = %08x%08x\n", password3, result[0], result[1]);
// test randominit
randominit(&rand_st, 0, 0);
printf("randominit(0x00000000,0x00000000) = %08x, %08x\n", rand_st.seed1, rand_st.seed2);
randominit(&rand_st, 0xFFFF, 0xFFFF);
printf("randominit(0x0000FFFF,0x0000FFFF) = %08x, %08x\n", rand_st.seed1, rand_st.seed2);
randominit(&rand_st, 0x50000000, 0x50000000);
printf("randominit(0x50000000,0x50000000) = %08x, %08x\n", rand_st.seed1, rand_st.seed2);
randominit(&rand_st, 0xFFFFFFFF, 0xFFFFFFFF);
printf("randominit(0xFFFFFFFF,0xFFFFFFFF) = %08x, %08x\n", rand_st.seed1, rand_st.seed2);
// test my_rnd
randominit(&rand_st, 3252345, 7149734);
printf("randominit(3252345, 7149734) = %08x, %08x\n", rand_st.seed1, rand_st.seed2);
for (i=0; i<10; i++){
printf("my_rnd() : %.16f\n", my_rnd(&rand_st));
}
// test scramble_323
scramble_323(scrm, "8bytesofstuff", "root");
printf("scramble323(8bytesofstuff, root): %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
scrm[0], scrm[1], scrm[2], scrm[3], scrm[4], scrm[5], scrm[6], scrm[7], scrm[8]);
scramble_323(scrm, "e8cf00cec9ec825af22", "saf789yasfbsd");
printf("scramble323(e8cf00cec9ec825af22, saf789yasfbsd): %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
scrm[0], scrm[1], scrm[2], scrm[3], scrm[4], scrm[5], scrm[6], scrm[7], scrm[8]);
return 23;
}
void array_shifting() {
printf("[array shifting]\n");
int repeat = 5;
size_t N = 1000;
uint32_t *array = malloc(N * sizeof(uint32_t));
randominit(array, N);
const int shiftamount = 3;
BEST_TIME(scalarshift(array, N, shiftamount), 0, randominit(array, N), repeat,
N, true);
BEST_TIME(vectorshift(array, N, shiftamount), 0, randominit(array, N), repeat,
N, true);
BEST_TIME(vectorshift_unrolled(array, N, shiftamount), 0, randominit(array, N), repeat,
N, true);
BEST_TIME(varvectorshift(array, N, shiftamount), 0, randominit(array, N), repeat,
N, true);
BEST_TIME(varvectorshift_unrolled(array, N, shiftamount), 0, randominit(array, N), repeat,
N, true);
BEST_TIME(variablevectorshift(array, N, shiftamount), 0, randominit(array, N), repeat,
N, true);
BEST_TIME(variablevectorshift_unrolled(array, N, shiftamount), 0, randominit(array, N), repeat,
N, true);
free(array);
}
void scramble_323(char *to, _MYSQL_DATA *_psSessionData, const char *message, const char *password)
{
struct rand_struct rand_st;
ulong hash_pass[2], hash_message[2];
if (password && password[0])
{
char extra, *to_start=to;
const char *message_end= message + SCRAMBLE_LENGTH_323;
/* Idea borrowed from "The Database Hacker's Handbook: Defending Database Servers" */
if (_psSessionData->hashFlag == HASH)
{
if (strlen(password) != 16)
writeError(ERR_ERROR, "[%s] Invalid Hash Type (Old Style Hash Required)", MODULE_NAME);
sscanf(password, "%08lx%08lx", &hash_pass[0], &hash_pass[1]);
}
else
hash_password(hash_pass, password, strlen(password));
hash_password(hash_message, message, SCRAMBLE_LENGTH_323);
randominit(&rand_st, hash_pass[0] ^ hash_message[0], hash_pass[1] ^ hash_message[1]);
for (; message < message_end; message++)
*to++= (char) (floor(my_rnd(&rand_st)*31)+64);
extra=(char) (floor(my_rnd(&rand_st)*31));
while (to_start != to)
*(to_start++)^=extra;
}
*to= 0;
}
my_bool
check_scramble_323(const unsigned char *scrambled, const char *message,
ulong *hash_pass)
{
struct rand_struct rand_st;
ulong hash_message[2];
/* Big enough for checks. */
uchar buff[16], scrambled_buff[SCRAMBLE_LENGTH_323 + 1];
uchar *to, extra;
const uchar *pos;
/* Ensure that the scrambled message is null-terminated. */
memcpy(scrambled_buff, scrambled, SCRAMBLE_LENGTH_323);
scrambled_buff[SCRAMBLE_LENGTH_323]= '\0';
scrambled= scrambled_buff;
hash_password(hash_message, message, SCRAMBLE_LENGTH_323);
randominit(&rand_st,hash_pass[0] ^ hash_message[0],
hash_pass[1] ^ hash_message[1]);
to=buff;
DBUG_ASSERT(sizeof(buff) > SCRAMBLE_LENGTH_323);
for (pos=scrambled ; *pos && to < buff+sizeof(buff) ; pos++)
*to++=(char) (floor(my_rnd(&rand_st)*31)+64);
if (pos-scrambled != SCRAMBLE_LENGTH_323)
return 1;
extra=(char) (floor(my_rnd(&rand_st)*31));
to=buff;
while (*scrambled)
{
if (*scrambled++ != (uchar) (*to++ ^ extra))
return 1; /* Wrong password */
}
return 0;
}
char *scramble(char *to,const char *message,const char *password,
my_bool old_ver)
{
struct rand_struct rand_st;
ulong hash_pass[2],hash_message[2];
if (password && password[0])
{
char *to_start=to;
hash_password(hash_pass,password);
hash_password(hash_message,message);
if (old_ver)
old_randominit(&rand_st,hash_pass[0] ^ hash_message[0]);
else
randominit(&rand_st,hash_pass[0] ^ hash_message[0],
hash_pass[1] ^ hash_message[1]);
while (*message++)
*to++= (char) (floor(rnd(&rand_st)*31)+64);
if (!old_ver)
{ /* Make it harder to break */
char extra=(char) (floor(rnd(&rand_st)*31));
while (to_start != to)
*(to_start++)^=extra;
}
}
*to=0;
return to;
}
my_bool check_scramble(const char *scrambled, const char *message,
ulong *hash_pass, my_bool old_ver)
{
struct rand_struct rand_st;
ulong hash_message[2];
char buff[16],*to,extra; /* Big enough for check */
const char *pos;
hash_password(hash_message,message);
if (old_ver)
old_randominit(&rand_st,hash_pass[0] ^ hash_message[0]);
else
randominit(&rand_st,hash_pass[0] ^ hash_message[0],
hash_pass[1] ^ hash_message[1]);
to=buff;
for (pos=scrambled ; *pos ; pos++)
*to++=(char) (floor(rnd(&rand_st)*31)+64);
if (old_ver)
extra=0;
else
extra=(char) (floor(rnd(&rand_st)*31));
to=buff;
while (*scrambled)
{
if (*scrambled++ != (char) (*to++ ^ extra))
return 1; /* Wrong password */
}
return 0;
}
my_bool
check_scramble_323(const char *scrambled, const char *message,
ulong *hash_pass)
{
struct rand_struct rand_st;
ulong hash_message[2];
char buff[16],*to,extra; /* Big enough for check */
const char *pos;
hash_password(hash_message, message, SCRAMBLE_LENGTH_323);
randominit(&rand_st,hash_pass[0] ^ hash_message[0],
hash_pass[1] ^ hash_message[1]);
to=buff;
DBUG_ASSERT(sizeof(buff) > SCRAMBLE_LENGTH_323);
for (pos=scrambled ; *pos && to < buff+sizeof(buff) ; pos++)
*to++=(char) (floor(my_rnd(&rand_st)*31)+64);
if (pos-scrambled != SCRAMBLE_LENGTH_323)
return 1;
extra=(char) (floor(my_rnd(&rand_st)*31));
to=buff;
while (*scrambled)
{
if (*scrambled++ != (char) (*to++ ^ extra))
return 1; /* Wrong password */
}
return 0;
}
static void
consinit(void)
{
randominit();
debuginit();
debugkey('f', "files/6", fddump, 0);
debugkey('q', "panic", qpanic, 1);
debugkey('r', "exit", rexit, 1);
klogq = qopen(128*1024, 0, 0, 0);
}
void lte_param_init(unsigned char N_tx, unsigned char N_rx,unsigned char transmission_mode,unsigned char extended_prefix_flag,uint16_t Nid_cell,uint8_t tdd_config)
{
unsigned int ind;
LTE_DL_FRAME_PARMS *lte_frame_parms;
printf("Start lte_param_init (Nid_cell %d, extended_prefix %d, transmission_mode %d, N_tx %d, N_rx %d)\n",
Nid_cell, extended_prefix_flag,transmission_mode,N_tx,N_rx);
PHY_vars_eNB = malloc(sizeof(PHY_VARS_eNB));
PHY_vars_UE = malloc(sizeof(PHY_VARS_UE));
mac_xface = malloc(sizeof(MAC_xface));
randominit(0);
set_taus_seed(0);
lte_frame_parms = &(PHY_vars_eNB->lte_frame_parms);
lte_frame_parms->N_RB_DL = 25; //50 for 10MHz and 25 for 5 MHz
lte_frame_parms->N_RB_UL = 25;
lte_frame_parms->Ncp = extended_prefix_flag;
lte_frame_parms->Nid_cell = Nid_cell;
lte_frame_parms->nushift = 0;
lte_frame_parms->nb_antennas_tx = N_tx;
lte_frame_parms->nb_antennas_rx = N_rx;
lte_frame_parms->tdd_config = tdd_config;
// lte_frame_parms->Csrs = 2;
// lte_frame_parms->Bsrs = 0;
// lte_frame_parms->kTC = 0;
// lte_frame_parms->n_RRC = 0;
lte_frame_parms->mode1_flag = (transmission_mode == 1)? 1 : 0;
init_frame_parms(lte_frame_parms,1);
//copy_lte_parms_to_phy_framing(lte_frame_parms, &(PHY_config->PHY_framing));
phy_init_top(lte_frame_parms); //allocation
lte_frame_parms->twiddle_fft = twiddle_fft;
lte_frame_parms->twiddle_ifft = twiddle_ifft;
lte_frame_parms->rev = rev;
memcpy(&PHY_vars_UE->lte_frame_parms,lte_frame_parms,sizeof(LTE_DL_FRAME_PARMS));
phy_init_lte_top(lte_frame_parms);
phy_init_lte_ue(PHY_vars_UE,1,0);
phy_init_lte_eNB(PHY_vars_eNB,0,0,0);
printf("Done lte_param_init\n");
}
void lte_param_init(unsigned char N_tx, unsigned char N_rx,unsigned char transmission_mode,unsigned char extended_prefix_flag,u16 Nid_cell,u8 N_RB_DL,u8 osf) {
LTE_DL_FRAME_PARMS *lte_frame_parms;
printf("Start lte_param_init\n");
PHY_vars_eNB = (PHY_VARS_eNB *)malloc(sizeof(PHY_VARS_eNB));
PHY_vars_UE = (PHY_VARS_UE *)malloc(sizeof(PHY_VARS_UE));
//PHY_config = malloc(sizeof(PHY_CONFIG));
// mac_xface = malloc(sizeof(MAC_xface));
randominit(0);
set_taus_seed(0);
lte_frame_parms = &(PHY_vars_eNB->lte_frame_parms);
lte_frame_parms->N_RB_DL = N_RB_DL; //50 for 10MHz and 25 for 5 MHz
lte_frame_parms->N_RB_UL = N_RB_DL;
lte_frame_parms->Ncp = extended_prefix_flag;
lte_frame_parms->Nid_cell = Nid_cell;
lte_frame_parms->nushift = 0;
lte_frame_parms->nb_antennas_tx = N_tx;
lte_frame_parms->nb_antennas_rx = N_rx;
// lte_frame_parms->Csrs = 2;
// lte_frame_parms->Bsrs = 0;
// lte_frame_parms->kTC = 0;
// lte_frame_parms->n_RRC = 0;
lte_frame_parms->mode1_flag = (transmission_mode == 1)? 1 : 0;
lte_frame_parms->tdd_config = 1;
lte_frame_parms->frame_type = 1;
init_frame_parms(lte_frame_parms,osf);
//copy_lte_parms_to_phy_framing(lte_frame_parms, &(PHY_config->PHY_framing));
phy_init_top(lte_frame_parms); //allocation
lte_frame_parms->twiddle_fft = twiddle_fft;
lte_frame_parms->twiddle_ifft = twiddle_ifft;
lte_frame_parms->rev = rev;
PHY_vars_UE->lte_frame_parms = *lte_frame_parms;
phy_init_lte_top(lte_frame_parms);
phy_init_lte_ue(PHY_vars_UE,0);
phy_init_lte_eNB(PHY_vars_eNB,0,0,0);
printf("Done lte_param_init\n");
}
static void
consinit(void)
{
todinit();
randominit();
#if 0 // Plan 9 VX
/*
* at 115200 baud, the 1024 char buffer takes 56 ms to process,
* processing it every 22 ms should be fine
*/
addclock0link(kbdputcclock, 22);
#endif
}
void
consinit(void)
{
kbdq = qopen(512, 0, nil, nil);
if(kbdq == 0)
panic("no memory");
lineq = qopen(2*1024, 0, nil, nil);
if(lineq == 0)
panic("no memory");
gkbdq = qopen(512, 0, nil, nil);
if(gkbdq == 0)
panic("no memory");
randominit();
}
void
consinit(void)
{
uv_mutex_init(&line_lock);
uv_cond_init(&line_ready);
kbdq = qopen(512, 0, nil, nil);
if(kbdq == 0)
panic("no memory");
lineq = qopen(2*1024, 0, nil, nil);
if(lineq == 0)
panic("no memory");
gkbdq = qopen(512, 0, nil, nil);
if(gkbdq == 0)
panic("no memory");
randominit();
}
void lte_param_init(unsigned char N_tx, unsigned char N_rx,unsigned char transmission_mode,uint8_t extended_prefix_flag,uint8_t N_RB_DL,uint8_t frame_type,uint8_t tdd_config,uint8_t osf, int num_bss)
{
LTE_DL_FRAME_PARMS *lte_frame_parms[num_bss];
PHY_vars_eNB = malloc(num_bss*sizeof(PHY_VARS_eNB*));
PHY_vars_UE = malloc(num_bss*sizeof(PHY_VARS_UE*));
var = malloc(num_bss*sizeof(uint8_t));
randominit(0);
set_taus_seed(0);
mac_xface = malloc(sizeof(MAC_xface));
int i = 0;
for (i = 0; i < num_bss; i++){
PHY_vars_eNB[i] = malloc(sizeof(PHY_VARS_eNB));
PHY_vars_UE[i] = malloc(sizeof(PHY_VARS_UE));
lte_frame_parms[i] = &(PHY_vars_eNB[i]->lte_frame_parms);
lte_frame_parms[i]->frame_type = frame_type;
lte_frame_parms[i]->tdd_config = tdd_config;
lte_frame_parms[i]->N_RB_DL = N_RB_DL; //50 for 10MHz and 25 for 5 MHz
lte_frame_parms[i]->N_RB_UL = N_RB_DL;
lte_frame_parms[i]->Ncp = extended_prefix_flag;
lte_frame_parms[i]->Ncp_UL = extended_prefix_flag;
lte_frame_parms[i]->Nid_cell = 10;
lte_frame_parms[i]->nushift = 0;
lte_frame_parms[i]->nb_antennas_tx = N_tx;
lte_frame_parms[i]->nb_antennas_rx = N_rx;
lte_frame_parms[i]->mode1_flag = (transmission_mode == 1)? 1 : 0;
lte_frame_parms[i]->pusch_config_common.ul_ReferenceSignalsPUSCH.cyclicShift = 0;//n_DMRS1 set to 0
init_frame_parms(lte_frame_parms[i],osf);
PHY_vars_UE[i]->lte_frame_parms = *lte_frame_parms[i];
phy_init_lte_top(lte_frame_parms[i]);
phy_init_lte_ue(PHY_vars_UE[i],1,0);
phy_init_lte_eNB(PHY_vars_eNB[i],0,0,0);
}
}
void scramble_323(char *to, const char *message, const char *password)
{
struct rand_struct rand_st;
ulong hash_pass[2], hash_message[2];
if (password && password[0])
{
char extra, *to_start=to;
const char *message_end= message + SCRAMBLE_LENGTH_323;
hash_password(hash_pass,password, (uint) strlen(password));
hash_password(hash_message, message, SCRAMBLE_LENGTH_323);
randominit(&rand_st,hash_pass[0] ^ hash_message[0],
hash_pass[1] ^ hash_message[1]);
for (; message < message_end; message++)
*to++= (char) (floor(my_rnd(&rand_st)*31)+64);
extra=(char) (floor(my_rnd(&rand_st)*31));
while (to_start != to)
*(to_start++)^=extra;
}
*to= 0;
}
void
consinit(void)
{
kbdq = qopen(512, 0, nil, nil);
if(kbdq == 0)
panic("no memory");
lineq = qopen(2*1024, 0, nil, nil);
if(lineq == 0)
panic("no memory");
gkbdq = qopen(512, 0, nil, nil);
if(gkbdq == 0)
panic("no memory");
batteryq = qopen(512, 0, nil, nil);
if(batteryq == 0)
panic("no memory");
typeq = qopen(512, 0, nil, nil);
if(typeq == 0)
panic("no memory");
brightnessq = qopen(512, 0, nil, nil);
if(brightnessq == 0)
panic("no memory");
randominit();
}
int main(int argc, char **argv) {
char c;
int i,aa,aarx;
double sigma2, sigma2_dB=0,SNR,snr0=10.0,snr1=10.2;
int snr1set=0;
uint32_t *txdata,*rxdata[2];
double *s_re[2],*s_im[2],*r_re[2],*r_im[2];
double iqim=0.0;
int trial, ntrials=1;
int n_rx=1;
int awgn_flag=0;
int n_frames=1;
channel_desc_t *ch;
uint32_t tx_lev,tx_lev_dB;
int interf1=-19,interf2=-19;
SCM_t channel_model=AWGN;
uint32_t sdu_length_samples;
TX_VECTOR_t tx_vector;
int errors=0,misdetected_errors=0,signal_errors=0;
int symbols=0;
int tx_offset = 0,rx_offset;
RX_VECTOR_t *rxv;
uint8_t *data_ind,*data_ind_rx;
int no_detection=1;
int missed_packets=0;
uint8_t rxp;
int off,off2;
double txg,txg_dB;
int log2_maxh;
double snr_array[100];
int errors_array[100];
int trials_array[100];
int misdetected_errors_array[100];
int signal_errors_array[100];
int missed_packets_array[100];
int cnt=0;
char fname[100],vname[100];
int stop=0;
data_ind = (uint8_t*)malloc(4095+2+1);
data_ind_rx = (uint8_t*)malloc(4095+2+1);
tx_vector.rate=1;
tx_vector.sdu_length=256;
tx_vector.service=0;
logInit();
randominit(0);
set_taus_seed(0);
// Basic initializations
init_fft(64,6,rev64);
init_interleavers();
ccodedot11_init();
ccodedot11_init_inv();
phy_generate_viterbi_tables();
init_crc32();
data_ind[0] = 0;
data_ind[1] = 0;
tx_offset = taus()%(FRAME_LENGTH_SAMPLES_MAX/2);
while ((c = getopt (argc, argv, "hag:n:s:S:z:r:p:d:")) != -1) {
switch (c) {
case 'a':
printf("Running AWGN simulation\n");
awgn_flag = 1;
ntrials=1;
break;
case 'g':
switch((char)*optarg) {
case 'A':
channel_model=SCM_A;
break;
case 'B':
channel_model=SCM_B;
break;
case 'C':
channel_model=SCM_C;
break;
case 'D':
channel_model=SCM_D;
break;
case 'E':
channel_model=EPA;
break;
case 'F':
channel_model=EVA;
break;
case 'G':
channel_model=ETU;
break;
case 'H':
channel_model=Rayleigh8;
case 'I':
channel_model=Rayleigh1;
case 'J':
channel_model=Rayleigh1_corr;
case 'K':
channel_model=Rayleigh1_anticorr;
case 'L':
channel_model=Rice8;
case 'M':
channel_model=Rice1;
break;
default:
printf("Unsupported channel model!\n");
exit(-1);
}
break;
case 'd':
tx_offset = atoi(optarg);
break;
case 'p':
tx_vector.sdu_length = atoi(optarg);
if (atoi(optarg)>4095) {
printf("Illegal sdu_length %d\n",tx_vector.sdu_length);
exit(-1);
}
break;
case 'r':
tx_vector.rate = atoi(optarg);
if (atoi(optarg)>7) {
printf("Illegal rate %d\n",tx_vector.rate);
exit(-1);
}
break;
case 'n':
n_frames = atoi(optarg);
break;
case 's':
snr0 = atof(optarg);
printf("Setting SNR0 to %f\n",snr0);
break;
case 'S':
snr1 = atof(optarg);
snr1set=1;
printf("Setting SNR1 to %f\n",snr1);
break;
case 'z':
n_rx=atoi(optarg);
if ((n_rx==0) || (n_rx>2)) {
printf("Unsupported number of rx antennas %d\n",n_rx);
exit(-1);
}
break;
default:
case 'h':
printf("%s -h(elp) -a(wgn on) -p(extended_prefix) -N cell_id -f output_filename -F input_filename -g channel_model -n n_frames -t Delayspread -r Ricean_FactordB -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant -i Intefrence0 -j Interference1 -A interpolation_file -C(alibration offset dB) -N CellId\n",argv[0]);
printf("-h This message\n");
printf("-a Use AWGN channel and not multipath\n");
printf("-n Number of frames to simulate\n");
printf("-s Starting SNR, runs from SNR0 to SNR0 + 5 dB. If n_frames is 1 then just SNR is simulated\n");
printf("-S Ending SNR, runs from SNR0 to SNR1\n");
printf("-g [A,B,C,D,E,F,G] Use 3GPP SCM (A,B,C,D) or 36-101 (E-EPA,F-EVA,G-ETU) models (ignores delay spread and Ricean factor)\n");
printf("-z Number of RX antennas used\n");
printf("-F Input filename (.txt format) for RX conformance testing\n");
exit (-1);
break;
}
}
if (n_frames==1)
snr1 = snr0+.2;
else
snr1 = snr0+5;
for (i=0; i<tx_vector.sdu_length; i++)
data_ind[i+2] = i;//taus(); // randomize packet
data_ind[tx_vector.sdu_length+2+4]=0; // Tail byte
// compute number of OFDM symbols in DATA period
symbols = ((4+2+1+tx_vector.sdu_length)<<1) / nibbles_per_symbol[tx_vector.rate];
if ((((4+2+1+tx_vector.sdu_length)<<1) % nibbles_per_symbol[tx_vector.rate]) > 0)
symbols++;
sdu_length_samples = (symbols + 5) * 80;
printf("Number of symbols for sdu : %d, samples %d\n",symbols,sdu_length_samples);
txdata = (uint32_t*)memalign(16,sdu_length_samples*sizeof(uint32_t));
for (i=0; i<n_rx; i++) {
rxdata[i] = (uint32_t*)memalign(16,(FRAME_LENGTH_SAMPLES_MAX+1280)*sizeof(uint32_t));
bzero(rxdata[i],(FRAME_LENGTH_SAMPLES_MAX+1280)*sizeof(uint32_t));
}
s_re[0] = (double *)malloc(sdu_length_samples*sizeof(double));
bzero(s_re[0],sdu_length_samples*sizeof(double));
s_im[0] = (double *)malloc(sdu_length_samples*sizeof(double));
bzero(s_im[0],sdu_length_samples*sizeof(double));
for (i=0; i<n_rx; i++) {
r_re[i] = (double *)malloc((sdu_length_samples+100)*sizeof(double));
bzero(r_re[i],(sdu_length_samples+100)*sizeof(double));
r_im[i] = (double *)malloc((sdu_length_samples+100)*sizeof(double));
bzero(r_im[i],(sdu_length_samples+100)*sizeof(double));
}
ch = new_channel_desc_scm(1,
n_rx,
channel_model,
BW,
0.0,
0,
0);
if (ch==NULL) {
printf("Problem generating channel model. Exiting.\n");
exit(-1);
}
phy_tx_start(&tx_vector,txdata,0,FRAME_LENGTH_SAMPLES_MAX,data_ind);
tx_lev = signal_energy((int32_t*)txdata,320);
tx_lev_dB = (unsigned int) dB_fixed(tx_lev);
write_output("txsig0.m","txs", txdata,sdu_length_samples,1,1);
// multipath channel
for (i=0; i<sdu_length_samples; i++) {
s_re[0][i] = (double)(((short *)txdata)[(i<<1)]);
s_im[0][i] = (double)(((short *)txdata)[(i<<1)+1]);
}
for (SNR=snr0; SNR<snr1; SNR+=.2) {
printf("n_frames %d SNR %f sdu_length %d rate %d\n",n_frames,SNR,tx_vector.sdu_length,tx_vector.rate);
errors=0;
misdetected_errors=0;
signal_errors=0;
missed_packets=0;
stop=0;
for (trial=0; trial<n_frames; trial++) {
// printf("Trial %d (errors %d), sdu_length_samples %d\n",trial,errors,sdu_length_samples);
sigma2_dB = 25; //10*log10((double)tx_lev) - SNR;
txg_dB = 10*log10((double)tx_lev) - (SNR + sigma2_dB);
txg = pow(10.0,-.05*txg_dB);
if (n_frames==1)
printf("sigma2_dB %f (SNR %f dB) tx_lev_dB %f, txg %f\n",sigma2_dB,SNR,10*log10((double)tx_lev)-txg_dB,txg_dB);
//AWGN
sigma2 = pow(10,sigma2_dB/10);
// printf("Sigma2 %f (sigma2_dB %f)\n",sigma2,sigma2_dB);
// sigma2 = 0;
multipath_channel(ch,s_re,s_im,r_re,r_im,
sdu_length_samples,0);
if (n_frames==1) {
printf("rx_level data symbol %f, tx_lev %f\n",
10*log10(signal_energy_fp(r_re,r_im,1,80,0)),
10*log10(tx_lev));
}
for (aa=0; aa<n_rx; aa++) {
for (i=0; i<(sdu_length_samples+100); i++) {
((short*)&rxdata[aa][tx_offset])[(i<<1)] = (short) (((txg*r_re[aa][i]) + sqrt(sigma2/2)*gaussdouble(0.0,1.0)));
((short*)&rxdata[aa][tx_offset])[1+(i<<1)] = (short) (((txg*r_im[aa][i]) + (iqim*r_re[aa][i]*txg) + sqrt(sigma2/2)*gaussdouble(0.0,1.0)));
// if (i<128)
// printf("i%d : rxdata %d, txdata %d\n",i,((short *)rxdata[aa])[rx_offset+(i<<1)],((short *)txdata)[i<<1]);
}
for (i=0; i<tx_offset; i++) {
((short*) rxdata[aa])[(i<<1)] = (short) (sqrt(sigma2/2)*gaussdouble(0.0,1.0));
((short*) rxdata[aa])[1+(i<<1)] = (short) (sqrt(sigma2/2)*gaussdouble(0.0,1.0));
}
for (i=(tx_offset+sdu_length_samples+100); i<FRAME_LENGTH_SAMPLES_MAX; i++) {
((short*) rxdata[aa])[(i<<1)] = (short) (sqrt(sigma2/2)*gaussdouble(0.0,1.0));
((short*) rxdata[aa])[1+(i<<1)] = (short) (sqrt(sigma2/2)*gaussdouble(0.0,1.0));
}
}
if (n_frames==1) {
write_output("rxsig0.m","rxs", &rxdata[0][0],FRAME_LENGTH_SAMPLES_MAX,1,1);
}
no_detection=1;
off = 0;
while(off<FRAME_LENGTH_SAMPLES_MAX) {
rxp = dB_fixed(signal_energy(rxdata[0]+off,512));
if (n_frames==1)
printf("off %d: rxp %d (%d)\n",off,rxp,signal_energy(rxdata[0]+off,104));
if (rxp>RX_THRES_dB) {
if (off<105)
off2 = FRAME_LENGTH_SAMPLES_MAX-105;
else
off2=off;
if ((initial_sync(&rxv,&rx_offset,&log2_maxh,(uint32_t*)rxdata[0],FRAME_LENGTH_SAMPLES_MAX,off2,1) == BUSY)) {
if (n_frames==1)
printf("Channel is busy, rxv %p, offset %d\n",(void*)rxv,rx_offset);
no_detection=0;
if (rxv) {
if (n_frames==1)
printf("Rate %d, SDU_LENGTH %d\n",rxv->rate,rxv->sdu_length);
if ( (rxv->rate != tx_vector.rate)||(rxv->sdu_length != tx_vector.sdu_length)) {
signal_errors++;
if ((signal_errors > (n_frames/10)) && (trial>=100)) {
stop=1;
}
if (n_frames == 1)
printf("SIGNAL error: rx_offset %d, tx_offset %d (off2 %d)\n",rx_offset,tx_offset,off2);
break;
}
else {
memset(data_ind_rx,0,rxv->sdu_length+4+2+1);
if (data_detection(rxv,data_ind_rx,(uint32_t*)rxdata[0],FRAME_LENGTH_SAMPLES_MAX,rx_offset,log2_maxh,NULL)) {
for (i=0; i<rxv->sdu_length+6; i++) {
if (data_ind[i]!=data_ind_rx[i]) {
//printf("error position %d : %x,%x\n",i,data_ind[i],data_ind_rx[i]);
misdetected_errors++;
errors++;
}
}
if ((errors > (n_frames/10)) && (trial>100)) {
stop=1;
break;
}
} // initial_synch returns IDLE
else {
errors++;
if (n_frames == 1) {
printf("Running data_detection fails\n");
for (i=0; i<rxv->sdu_length+6; i++) {
if (data_ind[i]!=data_ind_rx[i]) {
printf("error position %d : %x,%x\n",i,data_ind[i],data_ind_rx[i]);
}
}
}
if ((errors > (n_frames/10)) && (trial>=100)) {
stop=1;
break;
}
}
break;
}
}
}
}
off+=105;
}
if (no_detection==1)
missed_packets++;
if (stop==1)
break;
}
printf("\nSNR %f dB: errors %d/%d, misdetected errors %d/%d,signal_errors %d/%d, missed_packets %d/%d\n",SNR,errors,trial-signal_errors,misdetected_errors,trial-signal_errors,signal_errors,trial,missed_packets,trial);
snr_array[cnt] = SNR;
errors_array[cnt] = errors;
trials_array[cnt] = trial;
misdetected_errors_array[cnt] = misdetected_errors;
signal_errors_array[cnt] = signal_errors;
missed_packets_array[cnt] = missed_packets;
cnt++;
if (cnt>99) {
printf("too many SNR points, exiting ...\n");
break;
}
if (errors == 0)
break;
#ifdef EXECTIME
print_is_stats();
print_dd_stats();
#endif
}
sprintf(fname,"SNR_%d_%d.m",tx_vector.rate,tx_vector.sdu_length);
sprintf(vname,"SNR_%d_%d_v",tx_vector.rate,tx_vector.sdu_length);
write_output(fname,vname,snr_array,cnt,1,7);
sprintf(fname,"errors_%d_%d.m",tx_vector.rate,tx_vector.sdu_length);
sprintf(vname,"errors_%d_%d_v",tx_vector.rate,tx_vector.sdu_length);
write_output(fname,vname,errors_array,cnt,1,2);
sprintf(fname,"trials_%d_%d.m",tx_vector.rate,tx_vector.sdu_length);
sprintf(vname,"trials_%d_%d_v",tx_vector.rate,tx_vector.sdu_length);
write_output(fname,vname,trials_array,cnt,1,2);
sprintf(fname,"signal_errors_%d_%d.m",tx_vector.rate,tx_vector.sdu_length);
sprintf(vname,"signal_errors_%d_%d_v",tx_vector.rate,tx_vector.sdu_length);
write_output(fname,vname,signal_errors_array,cnt,1,2);
free(data_ind);
free(data_ind_rx);
// free_channel_desc_scm(ch);
free(txdata);
for (i=0; i<n_rx; i++) {
free(rxdata[i]);
}
free(s_re[0]);
free(s_im[0]);
for (i=0; i<n_rx; i++) {
free(r_re[i]);
free(r_im[i]);
}
return(0);
}
// Leosam 08/08: What are the arguments?
int
main (int argc, char **argv)
{
// Command line parsing
int input_val = 1000; // Value serving as an input relatad to the SNR
int max_num_ofdm_sym = 64; // Index of the last frame for the channel estimation
int be_verbose = 0; // Operate in verbose mode
int index;
int c;
unsigned int rx_energy[NB_ANTENNAS], n0_energy[NB_ANTENNAS];
if (argc == 1)
{
error ();
exit (-1);
}
while ((c = getopt (argc, argv, "hVv:n:")) != -1)
{
switch (c)
{
case 'h':
help ();
exit (1);
case 'V':
be_verbose = 1;
break;
case 'v':
input_val = atoi (optarg);
break;
return 1;
case 'n':
max_num_ofdm_sym = atoi (optarg);
break;
return 1;
default:
error ();
exit (-1);
}
}
//
// Initialization stuff
//
int i, ii, j, ret, delay, l;
short seed[3];
// Leosam 08/08: What is this amps?
double amps[8] = { 1.0, .8, .4, .2, .1, .05, .025, .01 };
struct complex ch[NB_ANTENNAS * NB_ANTENNAS][10 + (int) (1 + 2 * BW * Td)];
struct complex rx_tmp, tx, n, phase;
char *chbch_pdu;
int chbch_size;
int extension;
unsigned char dummy_mac_pdu[120];
#ifdef USER_MODE
char fname[40], vname[40];
#endif // USER_MODE
if (be_verbose)
printf ("Allocating memory for PHY_VARS\n");
// Memory allocation for PHY and MAC structures
PHY_vars = malloc (sizeof (PHY_VARS));
PHY_config = malloc (sizeof (PHY_CONFIG));
mac_xface = malloc (sizeof (MAC_xface));
// Loading of the configuration data
if ((config = fopen ("config.cfg", "r")) == NULL) // this can be configured
{
if (be_verbose)
printf ("[Main USER] The openair configuration file <config.cfg> could not be found!\n");
exit (0);
}
if ((scenario = fopen ("scenario.scn", "r")) == NULL)
{
if (be_verbose)
printf ("[Main USER] The openair scenario file <scenario.scn> could not be found!\n");
exit (0);
}
if (be_verbose)
printf ("Opened configuration files\n");
reconfigure_MACPHY (scenario);
if (be_verbose)
dump_config ();
// Leosam 08/08: This is repeated bellow. Is it necessary?
mac_xface->is_cluster_head = 0;
// Initialize the PHY and MAC variables
phy_init (NB_ANTENNAS_TX);
if (be_verbose)
printf ("Initialized PHY variables\n");
// Fill MAC PDU buffer for CHBCH
seed[0] = (short) time (NULL);
seed[1] = (short) time (NULL);
seed[2] = (short) time (NULL);
seed48 (&seed[0]);
randominit ();
/*
* for (i=0;i<mac_xface->mac_tch->bch_tx[0].size-4;i++) {
* mac_xface->mac_tch->bch_tx[0].data[i] = i;//(u8)lrand48();
* }
*
*
* printf("Filled CHBCH PDU with random data\n");
*
* // Generate one CHBCH
* phy_generate_chbch(0);
*
*/
//
// Preparation for the TX procedure
//
// Creation of the CHBCH
chbch_size = (NUMBER_OF_CARRIERS_PER_GROUP * (NUMBER_OF_CHBCH_SYMBOLS) * 16) >> 3;
if (be_verbose)
printf ("chbch_size = %d\n", chbch_size);
chbch_pdu = malloc (chbch_size);
for (i = 0; i < chbch_size - 4; i++)
{
chbch_pdu[i] = i;
}
if (be_verbose)
printf ("Filled CHBCH PDU (%d bytes) with data\n", chbch_size);
// Leosam 08/08: O.o
delay = 1032;
// delay = 0;
// Generation of the CHBCH
phy_generate_chbch (0, 1, NB_ANTENNAS_TX, chbch_pdu);
// Generation of the pilot symbols
for (i = 16; i < max_num_ofdm_sym; i++)
{
phy_generate_sch (0, i, 0xFFFF, 1, NB_ANTENNAS_TX);
}
mac_xface->is_cluster_head = 0;
if (be_verbose)
{
for (ii=0; ii<NB_ANTENNAS; ii++)
{
sprintf (fname, "txsig%d.m", ii);
sprintf (vname, "txs%d", ii);
write_output (fname, vname,
(s16 *) PHY_vars->tx_vars[ii].TX_DMA_BUFFER,
NUMBER_OF_SYMBOLS_PER_FRAME * OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES, 1, 1);
}
}
// generate channels
if (be_verbose)
printf ("Generating MIMO Channels\n");
phase.r = 0;
phase.i = 0;
printf("Phase pointer %0x\n",&phase);
for (i = 0; i < NB_ANTENNAS; i++)
{
for (j = 0; j < NB_ANTENNAS; j++)
{
random_channel (amps, Td, 8, BW, ch[j + (i * NB_ANTENNAS)],0.0,&phase);
}
}
if (be_verbose)
printf ("chbch_pdu %x (%d)\n", PHY_vars->chbch_data[0].demod_pdu, chbch_size);
if (be_verbose)
{
for (l = 0; l < (1 + 2 * BW * Td); l++)
{
printf ("(%f,%f)\n", ch[0][l]);
}
}
//
// TX procedure
//
// Transmission
//
//////////////////////////
// Foreach symbol
for (i = 0; i < (max_num_ofdm_sym) * OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES; i++)
{
// Foreach RX antenna
for (ii = 0; ii < NB_ANTENNAS; ii++)
{
rx_tmp.r = 0;
rx_tmp.i = 0;
n.r = gaussdouble (0.0, 10.0);
n.i = gaussdouble (0.0, 10.0);
// Foreach TX antenna
for (j = 0; j < NB_ANTENNAS; j++)
{
// Foreach symbol
for (l = 0; l < (1 + 2 * BW * Td); l++)
{
tx.r = (double) (((s16 *) & PHY_vars->tx_vars[j].
TX_DMA_BUFFER[0 *
OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES])
[2 * (i - l)]) / sqrt (1.0 * input_val);
tx.i = (double) (((s16 *) & PHY_vars->tx_vars[j].
TX_DMA_BUFFER[0 *
OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES])
[1 +
(2 * (i - l))]) / sqrt (1.0 * input_val);
rx_tmp.r +=
(tx.r * ch[j + (ii * NB_ANTENNAS)][l].r) -
(tx.i * ch[j + (ii * NB_ANTENNAS)][l].i);
rx_tmp.i +=
(tx.i * ch[j + (ii * NB_ANTENNAS)][l].r) +
(tx.r * ch[j + (ii * NB_ANTENNAS)][l].i);
}
}
((s16 *) & PHY_vars->rx_vars[ii].
RX_DMA_BUFFER[delay + (0 * OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES)])[2 * i] =
(short) (rx_tmp.r + n.r);
((s16 *) & PHY_vars->rx_vars[ii].
RX_DMA_BUFFER[delay + (0 * OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES)])[1 +
(2 * i)] =
(short) (rx_tmp.i + n.i);
}
}
if (be_verbose)
{
for (ii=0; ii<NB_ANTENNAS; ii++)
{
sprintf (fname, "rxsig%d.m", ii);
sprintf (vname, "rxs%d", ii);
write_output (fname, vname,
(s16 *) PHY_vars->rx_vars[ii].RX_DMA_BUFFER,
NUMBER_OF_SYMBOLS_PER_FRAME * OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES, 1, 1);
}
}
//
// RX procedure
//
if (be_verbose)
printf ("Starting RX\n");
// Sync
phy_synch_time (PHY_vars->rx_vars[0].RX_DMA_BUFFER,
&sync_pos,
FRAME_LENGTH_COMPLEX_SAMPLES,
768,
CHSCH,
0);
// Forcing sync to 0 since were running offline
if (be_verbose)
msg ("sync_pos = %d\n", sync_pos);
PHY_vars->rx_vars[0].offset = 0; //sync_pos;
// estamte the signal and noise energy
for (ii=0; ii < NB_ANTENNAS; ii++)
{
rx_energy[ii] = signal_energy((int *)&PHY_vars->rx_vars[ii].RX_DMA_BUFFER[PHY_vars->rx_vars[0].offset+CYCLIC_PREFIX_LENGTH],
OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
n0_energy[ii] = signal_energy((int *)&PHY_vars->rx_vars[ii].RX_DMA_BUFFER[PHY_vars->rx_vars[0].offset+CYCLIC_PREFIX_LENGTH +
(NUMBER_OF_CHSCH_SYMBOLS+NUMBER_OF_CHBCH_SYMBOLS+1) * OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES],
OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
//msg("CYCLIC_PREFIX_LENGTH=%d, NUMBER_OF_CHSCH_SYMBOLS=%d, NUMBER_OF_CHBCH_SYMBOLS=%d, OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES=%d\n", CYCLIC_PREFIX_LENGTH, NUMBER_OF_CHSCH_SYMBOLS, NUMBER_OF_CHBCH_SYMBOLS, OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
msg("symbol = %d\n", PHY_vars->rx_vars[ii].RX_DMA_BUFFER[PHY_vars->rx_vars[0].offset+CYCLIC_PREFIX_LENGTH +
(NUMBER_OF_CHSCH_SYMBOLS+NUMBER_OF_CHBCH_SYMBOLS) * OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES]);
msg("SNR Ant %d = %d / %d \n", ii, rx_energy[ii], n0_energy[ii]);
}
// CHBCH channel estimation
phy_channel_estimation_top(PHY_vars->rx_vars[0].offset,0,0,0,NB_ANTENNAS,0);
//phy_channel_estimation_top (PHY_vars->rx_vars[0].offset, 0, 0, 0);
phy_decode_chbch (0, &dummy_mac_pdu[0], NB_ANTENNAS, NB_ANTENNAS_TX, 120);
if (be_verbose)
{
for (i = 0; i < chbch_size; i++)
{
msg ("Data %x : %x\n", i, PHY_vars->chbch_data[0].demod_pdu[i]);
}
}
printf("PERROR_SHIFT: %d\n", PERROR_SHIFT);
//
// Channel estimation procedure
//
// for (i = 0; i < max_num_ofdm_sym; i++)
// {
// phy_channel_estimation_top(PHY_vars->rx_vars[0].offset,i,0,0,1);
// }
phy_channel_est_emos(16, 16, max_num_ofdm_sym-1, TRUE, 0);
phy_cleanup ();
if (be_verbose)
printf ("Exiting\n");
}
void lte_param_init(unsigned char N_tx, unsigned char N_rx,unsigned char transmission_mode) {
unsigned int ind;
printf("Start lte_param_init\n");
PHY_vars_eNb = malloc(sizeof(PHY_VARS_eNB));
PHY_vars_UE = malloc(sizeof(PHY_VARS_UE));
PHY_config = malloc(sizeof(PHY_CONFIG));
mac_xface = malloc(sizeof(MAC_xface));
randominit(0);
set_taus_seed(0);
lte_frame_parms = &(PHY_vars_eNb->lte_frame_parms);
lte_frame_parms->N_RB_DL = 25; //50 for 10MHz and 25 for 5 MHz
lte_frame_parms->N_RB_UL = 25;
lte_frame_parms->Ncp = 1;
lte_frame_parms->Nid_cell = 0;
lte_frame_parms->nushift = 0;
lte_frame_parms->nb_antennas_tx = N_tx;
lte_frame_parms->nb_antennas_rx = N_rx;
lte_frame_parms->first_dlsch_symbol = 4;
lte_frame_parms->num_dlsch_symbols = 6;
lte_frame_parms->Csrs = 2;
lte_frame_parms->Bsrs = 0;
lte_frame_parms->kTC = 0;
lte_frame_parms->n_RRC = 0;
lte_frame_parms->mode1_flag = (transmission_mode == 1)? 1 : 0;
init_frame_parms(lte_frame_parms);
copy_lte_parms_to_phy_framing(lte_frame_parms, &(PHY_config->PHY_framing));
phy_init_top(N_tx); //allocation
lte_frame_parms->twiddle_fft = twiddle_fft;
lte_frame_parms->twiddle_ifft = twiddle_ifft;
lte_frame_parms->rev = rev;
PHY_vars_UE->lte_frame_parms = *lte_frame_parms;
lte_gold(lte_frame_parms);
generate_ul_ref_sigs();
generate_ul_ref_sigs_rx();
generate_64qam_table();
generate_16qam_table();
generate_RIV_tables();
generate_pcfich_reg_mapping(lte_frame_parms);
generate_phich_reg_mapping_ext(lte_frame_parms);
phy_init_lte_ue(&PHY_vars_UE->lte_frame_parms,
&PHY_vars_UE->lte_ue_common_vars,
PHY_vars_UE->lte_ue_dlsch_vars,
PHY_vars_UE->lte_ue_dlsch_vars_cntl,
PHY_vars_UE->lte_ue_dlsch_vars_ra,
PHY_vars_UE->lte_ue_dlsch_vars_1A,
PHY_vars_UE->lte_ue_pbch_vars,
PHY_vars_UE->lte_ue_pdcch_vars,
PHY_vars_UE);
phy_init_lte_eNB(&PHY_vars_eNb->lte_frame_parms,
&PHY_vars_eNb->lte_eNB_common_vars,
PHY_vars_eNb->lte_eNB_ulsch_vars,
0,
PHY_vars_eNb);
printf("Done lte_param_init\n");
}
int main(int argc, char **argv)
{
int i,l,aa,sector;
double sigma2, sigma2_dB=0;
mod_sym_t **txdataF;
#ifdef IFFT_FPGA
int **txdataF2;
#endif
int **txdata,**rxdata;
double **s_re,**s_im,**r_re,**r_im;
double amps[8] = {0.3868472 , 0.3094778 , 0.1547389 , 0.0773694 , 0.0386847 , 0.0193424 , 0.0096712 , 0.0038685};
double aoa=.03,ricean_factor=1,Td=1.0;
int channel_length;
int amp;
unsigned char pbch_pdu[6];
int sync_pos, sync_pos_slot;
FILE *rx_frame_file;
int result;
int freq_offset;
int subframe_offset;
char fname[40], vname[40];
int trial, n_errors=0;
unsigned int nb_rb = 25;
unsigned int first_rb = 0;
unsigned int eNb_id = 0;
unsigned int slot_offset = 0;
unsigned int sample_offset = 0;
unsigned int channel_offset = 0;
int n_frames;
int slot=0,last_slot=0,next_slot=0;
double nf[2] = {3.0,3.0}; //currently unused
double ip =0.0;
double N0W, path_loss, path_loss_dB, tx_pwr, rx_pwr;
double rx_gain;
int rx_pwr2, target_rx_pwr_dB;
struct complex **ch;
unsigned char first_call = 1;
LTE_DL_FRAME_PARMS frame_parms;
LTE_DL_FRAME_PARMS *lte_frame_parms = &frame_parms;
if (argc==2)
amp = atoi(argv[1]);
else
amp = 1024;
// we normalize the tx power to 0dBm, assuming the amplitude of the signal is 1024
// the SNR is this given by the difference of the path loss and the thermal noise (~-105dBm)
// the rx_gain is adjusted automatically to achieve the target_rx_pwr_dB
path_loss_dB = -90;
path_loss = pow(10,path_loss_dB/10);
target_rx_pwr_dB = 60;
lte_frame_parms->N_RB_DL = 25;
lte_frame_parms->N_RB_UL = 25;
lte_frame_parms->Ng_times6 = 1;
lte_frame_parms->Ncp = 1;
lte_frame_parms->Nid_cell = 0;
lte_frame_parms->nushift = 0;
lte_frame_parms->nb_antennas_tx = 2;
lte_frame_parms->nb_antennas_rx = 2;
lte_frame_parms->first_dlsch_symbol = 4;
lte_frame_parms->num_dlsch_symbols = 6;
lte_frame_parms->Csrs = 2;
lte_frame_parms->Bsrs = 0;
lte_frame_parms->kTC = 0;
lte_frame_parms->n_RRC = 0;
lte_frame_parms->mode1_flag = 1;
lte_frame_parms->ofdm_symbol_size = 512;
lte_frame_parms->log2_symbol_size = 9;
lte_frame_parms->samples_per_tti = 7680;
lte_frame_parms->first_carrier_offset = 362;
lte_frame_parms->nb_prefix_samples>>=2;
#ifdef IFFT_FPGA
txdata = (int **)malloc16(2*sizeof(int*));
txdata[0] = (int *)malloc16(FRAME_LENGTH_BYTES);
txdata[1] = (int *)malloc16(FRAME_LENGTH_BYTES);
bzero(txdata[0],FRAME_LENGTH_BYTES);
bzero(txdata[1],FRAME_LENGTH_BYTES);
rxdata = (int **)malloc16(2*sizeof(int*));
rxdata[0] = (int *)malloc16(2*FRAME_LENGTH_BYTES);
rxdata[1] = (int *)malloc16(2*FRAME_LENGTH_BYTES);
bzero(rxdata[0],2*FRAME_LENGTH_BYTES);
bzero(rxdata[1],2*FRAME_LENGTH_BYTES);
txdataF2 = (int **)malloc16(2*sizeof(int*));
txdataF2[0] = (int *)malloc16(FRAME_LENGTH_BYTES);
txdataF2[1] = (int *)malloc16(FRAME_LENGTH_BYTES);
bzero(txdataF2[0],FRAME_LENGTH_BYTES);
bzero(txdataF2[1],FRAME_LENGTH_BYTES);
#endif
s_re = malloc(2*sizeof(double*));
s_im = malloc(2*sizeof(double*));
r_re = malloc(2*sizeof(double*));
r_im = malloc(2*sizeof(double*));
for (i=0; i<2; i++) {
s_re[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(s_re[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
s_im[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(s_im[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
r_re[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(r_re[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
r_im[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(r_im[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
}
for (i=0; i<2; i++) {
for (l=0; l<FRAME_LENGTH_COMPLEX_SAMPLES; l++) {
((short*) txdata[i])[2*l] = amp * cos(M_PI/2*l);
((short*) txdata[i])[2*l+1] = amp * sin(M_PI/2*l);
}
}
tx_pwr = signal_energy(txdata[0],lte_frame_parms->samples_per_tti>>1);
printf("tx_pwr (DAC in) %d dB for slot %d (subframe %d)\n",dB_fixed(tx_pwr),next_slot,next_slot>>1);
channel_length = (int) 11+2*BW*Td;
ch = (struct complex**) malloc(4 * sizeof(struct complex*));
for (i = 0; i<4; i++)
ch[i] = (struct complex*) malloc(channel_length * sizeof(struct complex));
randominit(0);
set_taus_seed(0);
#ifdef RF
tx_pwr = dac_fixed_gain(s_re,
s_im,
txdata,
lte_frame_parms->nb_antennas_tx,
lte_frame_parms->samples_per_tti>>1,
14,
18); //this should give 0dBm output level for input with amplitude 1024
printf("tx_pwr (DAC out) %f dB for slot %d (subframe %d)\n",10*log10(tx_pwr),next_slot,next_slot>>1);
#else
for (i=0; i<(lte_frame_parms->samples_per_tti>>1); i++) {
for (aa=0; aa<lte_frame_parms->nb_antennas_tx; aa++) {
s_re[aa][i] = ((double)(((short *)txdata[aa]))[(i<<1)]);
s_im[aa][i] = ((double)(((short *)txdata[aa]))[(i<<1)+1]);
}
}
#endif
// printf("channel for slot %d (subframe %d)\n",next_slot,next_slot>>1);
multipath_channel(ch,s_re,s_im,r_re,r_im,
amps,Td,BW,ricean_factor,aoa,
lte_frame_parms->nb_antennas_tx,
lte_frame_parms->nb_antennas_rx,
lte_frame_parms->samples_per_tti>>1,
channel_length,
0,
.9,
(first_call == 1) ? 1 : 0);
if (first_call == 1)
first_call = 0;
#ifdef RF
//path_loss_dB = 0;
//path_loss = 1;
for (i=0; i<(lte_frame_parms->samples_per_tti>>1); i++) {
for (aa=0; aa<lte_frame_parms->nb_antennas_rx; aa++) {
r_re[aa][i]=r_re[aa][i]*sqrt(path_loss);
r_im[aa][i]=r_im[aa][i]*sqrt(path_loss);
}
}
rx_pwr = signal_energy_fp(r_re,r_im,lte_frame_parms->nb_antennas_rx,lte_frame_parms->samples_per_tti>>1,0);
printf("rx_pwr (RF in) %f dB for slot %d (subframe %d)\n",10*log10(rx_pwr),next_slot,next_slot>>1);
rx_gain = target_rx_pwr_dB - 10*log10(rx_pwr);
// RF model
rf_rx(r_re,
r_im,
NULL,
NULL,
0,
lte_frame_parms->nb_antennas_rx,
lte_frame_parms->samples_per_tti>>1,
1.0/7.68e6 * 1e9, // sampling time (ns)
0.0, // freq offset (Hz) (-20kHz..20kHz)
0.0, // drift (Hz) NOT YET IMPLEMENTED
nf, // noise_figure NOT YET IMPLEMENTED
rx_gain-66.227, // rx gain (66.227 = 20*log10(pow2(11)) = gain from the adc that will be applied later)
200, // IP3_dBm (dBm)
&ip, // initial phase
30.0e3, // pn_cutoff (kHz)
-500.0, // pn_amp (dBc) default: 50
0.0, // IQ imbalance (dB),
0.0); // IQ phase imbalance (rad)
rx_pwr = signal_energy_fp(r_re,r_im,lte_frame_parms->nb_antennas_rx,lte_frame_parms->samples_per_tti>>1,0);
printf("rx_pwr (ADC in) %f dB for slot %d (subframe %d)\n",10*log10(rx_pwr),next_slot,next_slot>>1);
#endif
#ifdef RF
adc(r_re,
r_im,
0,
slot_offset,
rxdata,
lte_frame_parms->nb_antennas_rx,
lte_frame_parms->samples_per_tti>>1,
12);
rx_pwr2 = signal_energy(rxdata[0]+slot_offset,lte_frame_parms->samples_per_tti>>1);
printf("rx_pwr (ADC out) %f dB (%d) for slot %d (subframe %d)\n",10*log10((double)rx_pwr2),rx_pwr2,next_slot,next_slot>>1);
#else
for (i=0; i<(lte_frame_parms->samples_per_tti>>1); i++) {
for (aa=0; aa<lte_frame_parms->nb_antennas_rx; aa++) {
((short*) rxdata[aa])[2*slot_offset + (2*i)] = (short) ((r_re[aa][i]) + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
((short*) rxdata[aa])[2*slot_offset + (2*i)+1] = (short) ((r_im[aa][i]) + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
}
}
#endif
write_output("rxsig0.m","rxs0",rxdata[0],lte_frame_parms->samples_per_tti>>1,1,1);
write_output("rxsig1.m","rxs1",rxdata[1],lte_frame_parms->samples_per_tti>>1,1,1);
#ifdef IFFT_FPGA
free(txdataF2[0]);
free(txdataF2[1]);
free(txdataF2);
free(txdata[0]);
free(txdata[1]);
free(txdata);
free(rxdata[0]);
free(rxdata[1]);
free(rxdata);
#endif
for (i=0; i<2; i++) {
free(s_re[i]);
free(s_im[i]);
free(r_re[i]);
free(r_im[i]);
}
free(s_re);
free(s_im);
free(r_re);
free(r_im);
return(0);
}
int main(int argc, char *argv[]) {
int ret,ret2;
unsigned int errors,uerrors,errors2,crc_misses,iterations,trials,trials2,block_length,errors3,trials3;
double SNR,sigma,rate=.5;
unsigned char qbits,mcs;
char done0=0;
char done1=1;
char done2=1;
unsigned short iind;
unsigned int coded_bits;
unsigned char NB_RB=25;
int num_pdcch_symbols = 3;
int subframe = 6;
randominit(0);
logInit();
lte_param_init(1,1,1,0,0,3);
PHY_vars_eNB->dlsch_eNB[0][0] = new_eNB_dlsch(1,8,0);
PHY_vars_UE->dlsch_ue[0][0] = new_ue_dlsch(1,8,0);
PHY_vars_eNB->dlsch_eNB[0][1] = new_eNB_dlsch(1,8,0);
PHY_vars_UE->dlsch_ue[0][1] = new_ue_dlsch(1,8,0);
if (argc>1)
mcs = atoi(argv[1]);
else
mcs = 0;
printf("NB_RB %d\n",NB_RB);
DLSCH_alloc_pdu2.rah = 0;
DLSCH_alloc_pdu2.rballoc = DLSCH_RB_ALLOC;
DLSCH_alloc_pdu2.TPC = 0;
DLSCH_alloc_pdu2.dai = 0;
DLSCH_alloc_pdu2.harq_pid = 0;
DLSCH_alloc_pdu2.tb_swap = 0;
DLSCH_alloc_pdu2.mcs1 = mcs;
DLSCH_alloc_pdu2.ndi1 = 1;
DLSCH_alloc_pdu2.rv1 = 0;
if (argc>2)
qbits = atoi(argv[2]);
else
qbits = 4;
printf("Quantization bits %d\n",qbits);
generate_eNB_dlsch_params_from_dci(subframe,
&DLSCH_alloc_pdu2,
0x1234,
format2_2A_M10PRB,
PHY_vars_eNB->dlsch_eNB[0],
&PHY_vars_eNB->lte_frame_parms,
SI_RNTI,
0,
P_RNTI,
0); //change this later
generate_ue_dlsch_params_from_dci(subframe,
&DLSCH_alloc_pdu2,
C_RNTI,
format2_2A_M10PRB,
PHY_vars_UE->dlsch_ue[0],
&PHY_vars_UE->lte_frame_parms,
SI_RNTI,
0,
P_RNTI);
coded_bits = get_G(&PHY_vars_eNB->lte_frame_parms,NB_RB,PHY_vars_eNB->dlsch_eNB[0][0]->rb_alloc,
get_Qm(mcs),num_pdcch_symbols,subframe);
printf("Coded_bits (G) = %d\n",coded_bits);
block_length = dlsch_tbs25[get_I_TBS(mcs)][NB_RB-1]>>3;
printf("Block_length = %d bytes (%d bits, rate %f), mcs %d, I_TBS %d, NB_RB %d\n",block_length,
dlsch_tbs25[get_I_TBS(mcs)][NB_RB-1],(double)dlsch_tbs25[get_I_TBS(mcs)][NB_RB-1]/coded_bits,
mcs,get_I_TBS(mcs),NB_RB);
// Test Openair0 3GPP encoder
/*
test_encoder(block_length,
f1f2mat[(block_length-5)*2], // f1 (see 36121-820, page 14)
f1f2mat[((block_length-5)*2)+1], // f2 (see 36121-820, page 14)
3);
*/ // exit(0);
for (SNR=-6;SNR<16;SNR+=.5) {
// printf("\n\nSNR %f dB\n",SNR);
sigma = pow(10.0,-.05*SNR);
errors=0;
crc_misses=0;
errors2=0;
errors3=0;
iterations=0;
if (done0 == 0) {
ret = test_logmap8(PHY_vars_eNB->dlsch_eNB[0][0],
PHY_vars_UE->dlsch_ue[0][0],
coded_bits,
NB_RB,
sigma, // noise standard deviation
qbits,
block_length, // block length bytes
NTRIALS,
&errors,
&trials,
&uerrors,
&crc_misses,
&iterations,
num_pdcch_symbols,
subframe);
if (ret>=0)
// printf("ref: Errors %d (%f), Uerrors %d (%f), CRC Misses %d (%f), Avg iterations %f\n",errors,(double)errors/trials,uerrors,(double)uerrors/trials,crc_misses,(double)crc_misses/trials,(double)iterations/trials);
printf("%f,%f,%f,%f\n",SNR,(double)errors/trials,(double)crc_misses/trials,(double)iterations/trials);
if (((double)errors/trials) < 1e-2)
done0=1;
}
/*
if (done1 == 0) {
printf("exmimo\n");
ret = test_logmapexmimo(rate, // code rate
sigma, // noise standard deviation
qbits,
block_length, // block length bytes
f1f2mat[iind*2], // f1 (see 36121-820, page 14)
f1f2mat[(iind*2)+1], // f2 (see 36121-820, page 14)
3,
NTRIALS,
&errors3,
&trials3);
if (ret>=0)
printf("exmimo : Errors %d (%f)\n",errors3,(double)errors3/trials3);
if (((double)errors3/trials3) < 1e-3)
done1=1;
}
if (done2 == 0) {
printf("Viterbi ...\n");
ret2 = test_viterbi(sigma,
8*block_length,
NTRIALS,
&errors2,
&trials2,
rate);
if (ret2>=0)
printf("viterbi : Errors %d (%f)\n",errors2,(double)errors2/trials2);
if (((double)errors2/trials2) < 1e-3)
done2=1;
}
*/
if ((done0==1) && (done1==1) && (done2==1)) {
printf("done\n");
break;
}
}
return(0);
}
Layer::Layer(const int pnnodes, const int nnodes, const double lrate,
const double lambda, double (*act)(double), double (*actd)(double))
: lrate(lrate), lambda(lambda), act(act), actd(actd),
W(pnnodes+1, nnodes), grad(pnnodes+1, nnodes) {
randominit(6.0);
}
int
main (int argc, char **argv)
{
Interface_init();
s_t* st2=(s_t*)(Instance[1].gm->mem_ref.pointer);
st2->port=38800;
char c;
s32 i, j;
int new_omg_model; // goto ocg in oai_emulation.info.
// pointers signal buffers (s = transmit, r,r0 = receive)
double **s_re[NINST], **s_im[NINST], **r_re[NINST], **r_im[NINST], **r_re0, **r_im0;
double **r_re0_d[8][3], **r_im0_d[8][3], **r_re0_u[3][8],**r_im0_u[3][8];
// double **s_re, **s_im, **r_re, **r_im, **r_re0, **r_im0;
double forgetting_factor=0;
int map1,map2;
double **ShaF= NULL;
// Framing variables
s32 slot, last_slot, next_slot;
// variables/flags which are set by user on command-line
double snr_dB, sinr_dB;
u8 set_snr=0,set_sinr=0;
u8 cooperation_flag; // for cooperative communication
u8 target_dl_mcs = 4;
u8 target_ul_mcs = 2;
u8 rate_adaptation_flag;
u8 abstraction_flag = 0, ethernet_flag = 0;
u16 Nid_cell = 0;
s32 UE_id, eNB_id, ret;
// time calibration for soft realtime mode
struct timespec time_spec;
unsigned long time_last, time_now;
int td, td_avg, sleep_time_us;
char *g_log_level = "trace"; // by default global log level is set to trace
lte_subframe_t direction;
#ifdef XFORMS
FD_phy_procedures_sim *form[NUMBER_OF_eNB_MAX][NUMBER_OF_UE_MAX];
char title[255];
#endif
LTE_DL_FRAME_PARMS *frame_parms;
FILE *UE_stats[NUMBER_OF_UE_MAX], *eNB_stats;
char UE_stats_filename[255];
int len;
#ifdef ICIC
remove ("dci.txt");
#endif
//time_t t0,t1;
clock_t start, stop;
// Added for PHY abstraction
Node_list ue_node_list = NULL;
Node_list enb_node_list = NULL;
//default parameters
target_dl_mcs = 0;
rate_adaptation_flag = 0;
oai_emulation.info.n_frames = 0xffff;//1024; //100;
oai_emulation.info.n_frames_flag = 0;//fixme
snr_dB = 30;
cooperation_flag = 0; // default value 0 for no cooperation, 1 for Delay diversity, 2 for Distributed Alamouti
init_oai_emulation(); // to initialize everything !!!
// get command-line options
while ((c = getopt (argc, argv, "haePToFt:C:N:k:x:m:rn:s:S:f:z:u:b:c:M:p:g:l:d:U:B:R:E:"))
!= -1) {
switch (c) {
case 'F': // set FDD
oai_emulation.info.frame_type = 0;
break;
case 'C':
oai_emulation.info.tdd_config = atoi (optarg);
if (oai_emulation.info.tdd_config > 6) {
msg ("Illegal tdd_config %d (should be 0-6)\n", oai_emulation.info.tdd_config);
exit (-1);
}
break;
case 'R':
oai_emulation.info.N_RB_DL = atoi (optarg);
if ((oai_emulation.info.N_RB_DL != 6) && (oai_emulation.info.N_RB_DL != 15) && (oai_emulation.info.N_RB_DL != 25)
&& (oai_emulation.info.N_RB_DL != 50) && (oai_emulation.info.N_RB_DL != 75) && (oai_emulation.info.N_RB_DL != 100)) {
msg ("Illegal N_RB_DL %d (should be one of 6,15,25,50,75,100)\n", oai_emulation.info.N_RB_DL);
exit (-1);
}
case 'N':
Nid_cell = atoi (optarg);
if (Nid_cell > 503) {
msg ("Illegal Nid_cell %d (should be 0 ... 503)\n", Nid_cell);
exit(-1);
}
break;
case 'h':
help ();
exit (1);
case 'x':
oai_emulation.info.transmission_mode = atoi (optarg);
if ((oai_emulation.info.transmission_mode != 1) && (oai_emulation.info.transmission_mode != 2) && (oai_emulation.info.transmission_mode != 5) && (oai_emulation.info.transmission_mode != 6)) {
msg("Unsupported transmission mode %d\n",oai_emulation.info.transmission_mode);
exit(-1);
}
break;
case 'm':
target_dl_mcs = atoi (optarg);
break;
case 'r':
rate_adaptation_flag = 1;
break;
case 'n':
oai_emulation.info.n_frames = atoi (optarg);
//n_frames = (n_frames >1024) ? 1024: n_frames; // adjust the n_frames if higher that 1024
oai_emulation.info.n_frames_flag = 1;
break;
case 's':
snr_dB = atoi (optarg);
set_snr = 1;
oai_emulation.info.ocm_enabled=0;
break;
case 'S':
sinr_dB = atoi (optarg);
set_sinr = 1;
oai_emulation.info.ocm_enabled=0;
break;
case 'k':
//ricean_factor = atof (optarg);
printf("[SIM] Option k is no longer supported on the command line. Please specify your channel model in the xml template\n");
exit(-1);
break;
case 't':
//Td = atof (optarg);
printf("[SIM] Option t is no longer supported on the command line. Please specify your channel model in the xml template\n");
exit(-1);
break;
case 'f':
forgetting_factor = atof (optarg);
break;
case 'z':
cooperation_flag = atoi (optarg);
break;
case 'u':
oai_emulation.info.nb_ue_local = atoi (optarg);
break;
case 'b':
oai_emulation.info.nb_enb_local = atoi (optarg);
break;
case 'a':
abstraction_flag = 1;
break;
case 'p':
oai_emulation.info.nb_master = atoi (optarg);
break;
case 'M':
abstraction_flag = 1;
ethernet_flag = 1;
oai_emulation.info.ethernet_id = atoi (optarg);
oai_emulation.info.master_id = oai_emulation.info.ethernet_id;
oai_emulation.info.ethernet_flag = 1;
break;
case 'e':
oai_emulation.info.extended_prefix_flag = 1;
break;
case 'l':
g_log_level = optarg;
break;
case 'c':
strcpy(oai_emulation.info.local_server, optarg);
oai_emulation.info.ocg_enabled=1;
break;
case 'g':
oai_emulation.info.multicast_group = atoi (optarg);
break;
case 'B':
oai_emulation.info.omg_model_enb = atoi (optarg);
break;
case 'U':
oai_emulation.info.omg_model_ue = atoi (optarg);
break;
case 'T':
oai_emulation.info.otg_enabled = 1;
break;
case 'P':
oai_emulation.info.opt_enabled = 1;
break;
case 'E':
oai_emulation.info.seed = atoi (optarg);
break;
default:
help ();
exit (-1);
break;
}
}
// configure oaisim with OCG
oaisim_config(g_log_level); // config OMG and OCG, OPT, OTG, OLG
if (oai_emulation.info.nb_ue_local > NUMBER_OF_UE_MAX ) {
printf ("Enter fewer than %d UEs for the moment or change the NUMBER_OF_UE_MAX\n", NUMBER_OF_UE_MAX);
exit (-1);
}
if (oai_emulation.info.nb_enb_local > NUMBER_OF_eNB_MAX) {
printf ("Enter fewer than %d eNBs for the moment or change the NUMBER_OF_UE_MAX\n", NUMBER_OF_eNB_MAX);
exit (-1);
}
// fix ethernet and abstraction with RRC_CELLULAR Flag
#ifdef RRC_CELLULAR
abstraction_flag = 1;
ethernet_flag = 0;
#endif
if (set_sinr == 0)
sinr_dB = snr_dB - 20;
// setup ntedevice interface (netlink socket)
#ifndef CYGWIN
ret = netlink_init ();
#endif
if (ethernet_flag == 1) {
oai_emulation.info.master[oai_emulation.info.master_id].nb_ue = oai_emulation.info.nb_ue_local;
oai_emulation.info.master[oai_emulation.info.master_id].nb_enb = oai_emulation.info.nb_enb_local;
if (!oai_emulation.info.master_id)
oai_emulation.info.is_primary_master = 1;
j = 1;
for (i = 0; i < oai_emulation.info.nb_master; i++) {
if (i != oai_emulation.info.master_id)
oai_emulation.info.master_list = oai_emulation.info.master_list + j;
LOG_I (EMU, "Index of master id i=%d MASTER_LIST %d\n", i, oai_emulation.info.master_list);
j *= 2;
}
LOG_I (EMU, " Total number of master %d my master id %d\n", oai_emulation.info.nb_master, oai_emulation.info.master_id);
#ifdef LINUX
init_bypass ();
#endif
while (emu_tx_status != SYNCED_TRANSPORT) {
LOG_I (EMU, " Waiting for EMU Transport to be synced\n");
emu_transport_sync (); //emulation_tx_rx();
}
} // ethernet flag
NB_UE_INST = oai_emulation.info.nb_ue_local + oai_emulation.info.nb_ue_remote;
NB_eNB_INST = oai_emulation.info.nb_enb_local + oai_emulation.info.nb_enb_remote;
#ifndef NAS_NETLINK
for (UE_id=0;UE_id<NB_UE_INST;UE_id++) {
sprintf(UE_stats_filename,"UE_stats%d.txt",UE_id);
UE_stats[UE_id] = fopen (UE_stats_filename, "w");
}
eNB_stats = fopen ("eNB_stats.txt", "w");
printf ("UE_stats=%p, eNB_stats=%p\n", UE_stats, eNB_stats);
#endif
LOG_I(EMU, "total number of UE %d (local %d, remote %d) \n", NB_UE_INST,oai_emulation.info.nb_ue_local,oai_emulation.info.nb_ue_remote);
LOG_I(EMU, "Total number of eNB %d (local %d, remote %d) \n", NB_eNB_INST,oai_emulation.info.nb_enb_local,oai_emulation.info.nb_enb_remote);
printf("Running with frame_type %d, Nid_cell %d, N_RB_DL %d, EP %d, mode %d, target dl_mcs %d, rate adaptation %d, nframes %d, abstraction %d\n",
1+oai_emulation.info.frame_type, Nid_cell, oai_emulation.info.N_RB_DL, oai_emulation.info.extended_prefix_flag, oai_emulation.info.transmission_mode,target_dl_mcs,rate_adaptation_flag,oai_emulation.info.n_frames,abstraction_flag);
// init_lte_vars (&frame_parms, oai_emulation.info.frame_type, oai_emulation.info.tdd_config, oai_emulation.info.extended_prefix_flag,oai_emulation.info.N_RB_DL, Nid_cell, cooperation_flag, oai_emulation.info.transmission_mode, abstraction_flag);
init_frame_params (&frame_parms, oai_emulation.info.frame_type, oai_emulation.info.tdd_config, oai_emulation.info.extended_prefix_flag,oai_emulation.info.N_RB_DL, Nid_cell, cooperation_flag, oai_emulation.info.transmission_mode, abstraction_flag);
printf ("Nid_cell %d\n", frame_parms->Nid_cell);
/* Added for PHY abstraction */
if (abstraction_flag)
get_beta_map();
for (eNB_id = 0; eNB_id < NB_eNB_INST; eNB_id++) {
enb_data[eNB_id] = (node_desc_t *)malloc(sizeof(node_desc_t));
init_enb(enb_data[eNB_id],oai_emulation.environment_system_config.antenna.eNB_antenna);
}
for (UE_id = 0; UE_id < NB_UE_INST; UE_id++) {
ue_data[UE_id] = (node_desc_t *)malloc(sizeof(node_desc_t));
init_ue(ue_data[UE_id],oai_emulation.environment_system_config.antenna.UE_antenna);
}
// init SF map here!!!
map1 =(int)oai_emulation.topology_config.area.x_km;
map2 =(int)oai_emulation.topology_config.area.y_km;
//ShaF = createMat(map1,map2); -> memory is allocated within init_SF
ShaF = init_SF(map1,map2,DECOR_DIST,SF_VAR);
// size of area to generate shadow fading map
printf("Simulation area x=%f, y=%f\n",
oai_emulation.topology_config.area.x_km,
oai_emulation.topology_config.area.y_km);
if (abstraction_flag == 0){
int ci;
int ji=0;
for(ci=0;ci<NB_eNB_INST;ci++)
{
init_channel_mmap_channel(10+ji,frame_parms, &(s_re[ci]), &(s_im[ci]), &(r_re[ci]), &(r_im[ci]), &(r_re0), &(r_im0));
ji++;
//printf("ci %d\n",ci);
}
ji=0;
for(ci=NB_eNB_INST;ci<(NB_eNB_INST+NB_UE_INST);ci++)
{
init_channel_mmap_channel(20+ji,frame_parms, &(s_re[ci]), &(s_im[ci]), &(r_re[ci]), &(r_im[ci]), &(r_re0), &(r_im0));
ji++;
//printf("ci %d\n",ci);
}
}
for (eNB_id = 0; eNB_id < NB_eNB_INST; eNB_id++) {
for (UE_id = 0; UE_id < NB_UE_INST; UE_id++) {
init_rre(frame_parms,&(r_re0_u[eNB_id][UE_id]),&(r_im0_u[eNB_id][UE_id]));
init_rre(frame_parms,&(r_re0_d[UE_id][eNB_id]),&(r_im0_d[UE_id][eNB_id]));
}
}
// printf("r_re0 %lf , r_im0 %lf\n",r_re0_u[0][0][0][0],r_im0_u[0][0][0][0]);
//
// r_im0_u[0][0][0][0]=100;
//
// printf("r_re0 %lf , r_im0 %lf\n",r_re0_u[0][0][0][0],r_im0_u[0][0][0][0]);
//
//
// clean_param((r_re0_u[0][0]),(r_im0_u[0][0]),frame_parms);
//
// printf("r_re0 %lf , r_im0 %lf\n",r_re0_u[0][0][0][0],r_im0_u[0][0][0][0]);
for (eNB_id = 0; eNB_id < NB_eNB_INST; eNB_id++) {
for (UE_id = 0; UE_id < NB_UE_INST; UE_id++) {
#ifdef DEBUG_SIM
printf ("[SIM] Initializing channel from eNB %d to UE %d\n", eNB_id, UE_id);
#endif
eNB2UE[eNB_id][UE_id] = new_channel_desc_scm(2,
2,
map_str_to_int(small_scale_names, oai_emulation.environment_system_config.fading.small_scale.selected_option),
oai_emulation.environment_system_config.system_bandwidth_MB,
forgetting_factor,
0,
0);
UE2eNB[UE_id][eNB_id] = new_channel_desc_scm(2,
2,
map_str_to_int(small_scale_names, oai_emulation.environment_system_config.fading.small_scale.selected_option),
oai_emulation.environment_system_config.system_bandwidth_MB,
forgetting_factor,
0,
0);
}
}
randominit (0);
set_taus_seed (0);
number_of_cards = 1;
openair_daq_vars.rx_rf_mode = 1;
openair_daq_vars.tdd = 1;
openair_daq_vars.rx_gain_mode = DAQ_AGC_ON;
openair_daq_vars.dlsch_transmission_mode = oai_emulation.info.transmission_mode;
openair_daq_vars.target_ue_dl_mcs = target_dl_mcs;
openair_daq_vars.target_ue_ul_mcs = target_ul_mcs;
openair_daq_vars.dlsch_rate_adaptation = rate_adaptation_flag;
openair_daq_vars.ue_ul_nb_rb = 2;
#ifdef XFORMS
fl_initialize (&argc, argv, NULL, 0, 0);
for (UE_id = 0; UE_id < NB_UE_INST; UE_id++)
for (eNB_id = 0; eNB_id < NB_eNB_INST; eNB_id++) {
form[eNB_id][UE_id] = create_form_phy_procedures_sim ();
sprintf (title, "LTE SIM UE %d eNB %d", UE_id, eNB_id);
fl_show_form (form[eNB_id][UE_id]->phy_procedures_sim, FL_PLACE_HOTSPOT, FL_FULLBORDER, title);
}
#endif
// time calibration for OAI
clock_gettime (CLOCK_REALTIME, &time_spec);
time_now = (unsigned long) time_spec.tv_nsec;
td_avg = 0;
sleep_time_us = SLEEP_STEP_US;
td_avg = TARGET_SF_TIME_NS;
// s_t* st2=(s_t*)(Instance[1].gm->mem_ref.pointer);
st2->Exec_FLAG=0;
int count;
IntInitAll();
Soc_t* this = (Soc_t*)(obj_inst[0].ptr->mem_ref.pointer);
fd_set read_ibits;
fd_set write_ibits;
int n;
struct timeval tvp ;
tvp.tv_sec=10;
tvp.tv_usec=0;
FD_ZERO(&read_ibits);
FD_SET(this->m_io_sync.io_sync_entries->fd_read, &read_ibits);
ch_thread *e2u_t[NB_eNB_INST][NB_UE_INST];
ch_thread *u2e_t[NB_UE_INST][NB_eNB_INST];
for(eNB_id=0;eNB_id<NB_eNB_INST;eNB_id++){
for(UE_id=0;UE_id<NB_UE_INST;UE_id++){
e2u_t[eNB_id][UE_id]=(ch_thread*)calloc(1,sizeof(ch_thread));
}}
for(UE_id=0;UE_id<NB_UE_INST;UE_id++){
for(eNB_id=0;eNB_id<NB_eNB_INST;eNB_id++){
u2e_t[UE_id][eNB_id]=(ch_thread*)calloc(1,sizeof(ch_thread));
}}
pthread_t thread,thread2;
pthread_t cthr_u[NB_eNB_INST][NB_UE_INST];
pthread_t cthr_d[NB_UE_INST][NB_eNB_INST];
for (UE_id = oai_emulation.info.first_ue_local; UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); UE_id++){
for (eNB_id=oai_emulation.info.first_enb_local;eNB_id<(oai_emulation.info.first_enb_local+oai_emulation.info.nb_enb_local);eNB_id++) {
u2e_t[UE_id][eNB_id]->eNB_id=eNB_id;
u2e_t[UE_id][eNB_id]->UE_id=UE_id;
u2e_t[UE_id][eNB_id]->r_re0=r_re0_d[UE_id][eNB_id];
u2e_t[UE_id][eNB_id]->r_im0=r_im0_d[UE_id][eNB_id];
u2e_t[UE_id][eNB_id]->r_re=r_re[NB_eNB_INST+UE_id];
u2e_t[UE_id][eNB_id]->r_im=r_im[NB_eNB_INST+UE_id];
u2e_t[UE_id][eNB_id]->s_im=s_im[eNB_id];
u2e_t[UE_id][eNB_id]->s_re=s_re[eNB_id];
u2e_t[UE_id][eNB_id]->eNB2UE=eNB2UE[eNB_id][UE_id];
u2e_t[UE_id][eNB_id]->UE2eNB=UE2eNB[UE_id][eNB_id];
u2e_t[UE_id][eNB_id]->enb_data=enb_data[eNB_id];
u2e_t[UE_id][eNB_id]->ue_data=ue_data[UE_id];
u2e_t[UE_id][eNB_id]->next_slot=&next_slot;
u2e_t[UE_id][eNB_id]->abstraction_flag=&abstraction_flag;
u2e_t[UE_id][eNB_id]->frame_parms=frame_parms;
pthread_create (&cthr_d[UE_id][eNB_id], NULL, do_DL_sig_channel_T,(void*)(u2e_t[UE_id][eNB_id]));
}
}
int sock;
int port=(35000+(10+eNB_id)+(20+UE_id));
port=35010;
sock = openairInetCreateSocket(SOCK_DGRAM,IPPROTO_UDP,"127.0.0.1",port);
// int n;
// fd_set read_ibits;
// fd_set write_ibits;
// struct timeval tvp = { 0, 0 };
FD_ZERO(&read_ibits);
FD_SET(sock,&read_ibits);
n = openairSelect(sock+1, &read_ibits, NULL, NULL, NULL);
printf("Waiting is over\n");
FD_ISSET(sock, &read_ibits);
for (mac_xface->frame=0; mac_xface->frame<oai_emulation.info.n_frames; mac_xface->frame++) {
int dir_flag=0;
printf("=============== Frame Number %d ============= \n ",mac_xface->frame);
/*
// Handling the cooperation Flag
if (cooperation_flag == 2)
{
if ((PHY_vars_eNB_g[0]->eNB_UE_stats[0].mode == PUSCH) && (PHY_vars_eNB_g[0]->eNB_UE_stats[1].mode == PUSCH))
PHY_vars_eNB_g[0]->cooperation_flag = 2;
}
*/
// for dubugging the frame counter
update_nodes(oai_emulation.info.time);
enb_node_list = get_current_positions(oai_emulation.info.omg_model_enb, eNB, oai_emulation.info.time);
ue_node_list = get_current_positions(oai_emulation.info.omg_model_ue, UE, oai_emulation.info.time);
// update the position of all the nodes (eNB/CH, and UE/MR) every frame
if (((int)oai_emulation.info.time % 10) == 0 ) {
display_node_list(enb_node_list);
display_node_list(ue_node_list);
if (oai_emulation.info.omg_model_ue >= MAX_NUM_MOB_TYPES){ // mix mobility model
for(UE_id=oai_emulation.info.first_ue_local; UE_id<(oai_emulation.info.first_ue_local+oai_emulation.info.nb_ue_local);UE_id++){
new_omg_model = randomGen(STATIC, MAX_NUM_MOB_TYPES);
LOG_D(OMG, "[UE] Node of ID %d is changing mobility generator ->%d \n", UE_id, new_omg_model);
// reset the mobility model for a specific node
set_new_mob_type (UE_id, UE, new_omg_model, oai_emulation.info.time);
}
}
if (oai_emulation.info.omg_model_enb >= MAX_NUM_MOB_TYPES) { // mix mobility model
for (eNB_id = oai_emulation.info.first_enb_local; eNB_id < (oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local); eNB_id++) {
new_omg_model = randomGen (STATIC, MAX_NUM_MOB_TYPES);
LOG_D (OMG, "[eNB] Node of ID %d is changing mobility generator ->%d \n", UE_id, new_omg_model);
// reset the mobility model for a specific node
set_new_mob_type (eNB_id, eNB, new_omg_model, oai_emulation.info.time);
}
}
}
#ifdef DEBUG_OMG
if ((((int) oai_emulation.info.time) % 100) == 0) {
for (UE_id = oai_emulation.info.first_ue_local; UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); UE_id++) {
get_node_position (UE, UE_id);
}
}
#endif
if (oai_emulation.info.n_frames_flag == 0){ // if n_frames not set by the user then let the emulation run to infinity
mac_xface->frame %=(oai_emulation.info.n_frames-1);
// set the emulation time based on 1ms subframe number
oai_emulation.info.time += 0.01; // emu time in s
}
else { // user set the number of frames for the emulation
// let the time go faster to see the effect of mobility
oai_emulation.info.time += 0.1;
}
/* check if the openair channel model is activated used for PHY abstraction */
/* if ((oai_emulation.info.ocm_enabled == 1)&& (ethernet_flag == 0 )) {
extract_position(enb_node_list, enb_data, NB_eNB_INST);
extract_position(ue_node_list, ue_data, NB_UE_INST);
for (eNB_id = 0; eNB_id < NB_eNB_INST; eNB_id++) {
for (UE_id = 0; UE_id < NB_UE_INST; UE_id++) {
calc_path_loss (enb_data[eNB_id], ue_data[UE_id], eNB2UE[eNB_id][UE_id], oai_emulation.environment_system_config,ShaF[(int)ue_data[UE_id]->x][(int)ue_data[UE_id]->y]);
UE2eNB[UE_id][eNB_id]->path_loss_dB = eNB2UE[eNB_id][UE_id]->path_loss_dB;
printf("[CHANNEL_SIM] Pathloss bw enB %d at (%f,%f) and UE%d at (%f,%f) is %f (ShaF %f)\n",
eNB_id,enb_data[eNB_id]->x,enb_data[eNB_id]->y,UE_id,ue_data[UE_id]->x,ue_data[UE_id]->y,
eNB2UE[eNB_id][UE_id]->path_loss_dB,
ShaF[(int)ue_data[UE_id]->x][(int)ue_data[UE_id]->y]);
}
}
} */
// else {
for (eNB_id = 0; eNB_id < NB_eNB_INST; eNB_id++) {
for (UE_id = 0; UE_id < NB_UE_INST; UE_id++) {
eNB2UE[eNB_id][UE_id]->path_loss_dB = -105 + snr_dB;
//UE2eNB[UE_id][eNB_id]->path_loss_dB = -105 + snr_dB;
if (eNB_id == (UE_id % NB_eNB_INST))
UE2eNB[UE_id][eNB_id]->path_loss_dB = -105 + snr_dB - 10;
else
UE2eNB[UE_id][eNB_id]->path_loss_dB = -105 + sinr_dB - 10;
#ifdef DEBUG_SIM
printf("[SIM] Path loss from eNB %d to UE %d => %f dB\n",eNB_id,UE_id,eNB2UE[eNB_id][UE_id]->path_loss_dB);
printf("[SIM] Path loss from UE %d to eNB %d => %f dB\n",UE_id,eNB_id,UE2eNB[UE_id][eNB_id]->path_loss_dB);
#endif
}
}
// } else
st2->EResp_FLAG=0;
for (slot=0 ; slot<20 ; slot++) {
printf("=============== Frame Number %d , Slot %d ============= \n ",mac_xface->frame,slot);
last_slot = (slot - 1)%20;
if (last_slot <0)
last_slot+=20;
next_slot = (slot + 1)%20;
direction = subframe_select(frame_parms,next_slot>>1);
if (direction == SF_DL) {
dir_flag=1;
}
else if (direction == SF_UL) {
dir_flag=2;
}
else {//it must be a special subframe
if (next_slot%2==0) {//DL part
dir_flag=1;
}
else {// UL part
dir_flag=2;
}
}
int count=0;
if(dir_flag==1)
{
st2->EResp_FLAG=0;
count=0;
for (eNB_id=oai_emulation.info.first_enb_local;eNB_id<(oai_emulation.info.first_enb_local+oai_emulation.info.nb_enb_local);eNB_id++) {
send_exec_msg(next_slot,last_slot,mac_xface->frame,mac_xface->frame,slot,0,38810+eNB_id);
printf("Waiting for Exec Msg Complete \n");
// n = openairIoSyncCreateThread_2(&this->m_io_sync);
} // for loop
while(count<NB_eNB_INST){
n=trig_wait((void*)&this->m_io_sync);
count++;
}
for (UE_id = oai_emulation.info.first_ue_local; UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); UE_id++){
for (eNB_id=oai_emulation.info.first_enb_local;eNB_id<(oai_emulation.info.first_enb_local+oai_emulation.info.nb_enb_local);eNB_id++) {
//trigger message
send_exec_msg(0,0,0,0,0,0,(35000+(10+eNB_id)+(20+UE_id)));
}
}
usleep(5);
// while(st2->EResp_FLAG<NB_eNB_INST)
// {
/*
for (UE_id = oai_emulation.info.first_ue_local; UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); UE_id++){
for (eNB_id=oai_emulation.info.first_enb_local;eNB_id<(oai_emulation.info.first_enb_local+oai_emulation.info.nb_enb_local);eNB_id++) {
u2e_t[UE_id][eNB_id]->eNB_id=eNB_id;
u2e_t[UE_id][eNB_id]->UE_id=UE_id;
u2e_t[UE_id][eNB_id]->r_re0=r_re0_d[UE_id][eNB_id];
u2e_t[UE_id][eNB_id]->r_im0=r_im0_d[UE_id][eNB_id];
u2e_t[UE_id][eNB_id]->r_re=r_re[NB_eNB_INST+UE_id];
u2e_t[UE_id][eNB_id]->r_im=r_im[NB_eNB_INST+UE_id];
u2e_t[UE_id][eNB_id]->s_im=s_im[eNB_id];
u2e_t[UE_id][eNB_id]->s_re=s_re[eNB_id];
u2e_t[UE_id][eNB_id]->eNB2UE=eNB2UE[eNB_id][UE_id];
u2e_t[UE_id][eNB_id]->UE2eNB=UE2eNB[UE_id][eNB_id];
u2e_t[UE_id][eNB_id]->enb_data=enb_data[eNB_id];
u2e_t[UE_id][eNB_id]->ue_data=ue_data[UE_id];
u2e_t[UE_id][eNB_id]->next_slot=&next_slot;
u2e_t[UE_id][eNB_id]->abstraction_flag=&abstraction_flag;
u2e_t[UE_id][eNB_id]->frame_parms=frame_parms;
// pthread_create (&thread[eNB_id][UE_id], NULL, do_DL_sig_channel_T,(void*)cthread);
pthread_create (&cthr_d[UE_id][eNB_id], NULL, do_DL_sig_channel_T,(void*)(u2e_t[UE_id][eNB_id]));
// pthread_join(cthr_d[UE_id][eNB_id], NULL);
// pthread_join(cthr_d[UE_id][eNB_id], NULL);
// pthread_join(thread[eNB_id][UE_id], NULL);
// do_DL_sig_channel(eNB_id,UE_id,r_re0,r_im0,r_re[NB_eNB_INST+UE_id],r_im[NB_eNB_INST+UE_id],s_re[eNB_id],s_im[eNB_id],eNB2UE,enb_data, ue_data,next_slot,abstraction_flag,frame_parms);
// do_DL_sig_channel(eNB_id,UE_id,r_re0_d[UE_id][eNB_id],r_im0_d[UE_id][eNB_id],r_re[NB_eNB_INST+UE_id],r_im[NB_eNB_INST+UE_id],s_re[eNB_id],s_im[eNB_id],eNB2UE,enb_data, ue_data,next_slot,abstraction_flag,frame_parms);
}
}
*/
//
//for (UE_id = oai_emulation.info.first_ue_local; UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); UE_id++){
//for (eNB_id=oai_emulation.info.first_enb_local;eNB_id<(oai_emulation.info.first_enb_local+oai_emulation.info.nb_enb_local);eNB_id++) {
//pthread_join(cthr_d[UE_id][eNB_id], NULL);
//}
//}
for (UE_id = oai_emulation.info.first_ue_local; UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); UE_id++){
clean_param(r_re[NB_eNB_INST+UE_id],r_im[NB_eNB_INST+UE_id],frame_parms);
for (eNB_id=oai_emulation.info.first_enb_local;eNB_id<(oai_emulation.info.first_enb_local+oai_emulation.info.nb_enb_local);eNB_id++) {
channel_add(r_re[NB_eNB_INST+UE_id],r_im[NB_eNB_INST+UE_id],r_re0_d[UE_id][eNB_id],r_im0_d[UE_id][eNB_id],frame_parms);
}
}
// if(UE_id==NB_UE_INST)
// pthread_join(thread, NULL);
//}
for (UE_id = oai_emulation.info.first_ue_local; UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); UE_id++){
for (eNB_id=oai_emulation.info.first_enb_local;eNB_id<(oai_emulation.info.first_enb_local+oai_emulation.info.nb_enb_local);eNB_id++) {
// pthread_join(thread, NULL);
//pthread_join(thread[eNB_id][UE_id], NULL);
}
}
// }
st2->EResp_FLAG=0;
count=0;
for (UE_id = oai_emulation.info.first_ue_local; UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); UE_id++)
if (mac_xface->frame >= (UE_id * 10)) { // activate UE only after 10*UE_id frames so that different UEs turn on separately
send_exec_msg(next_slot,last_slot,mac_xface->frame,mac_xface->frame,slot,0,38820+UE_id);
printf("Waiting for Exec Msg Complete \n");
//n = openairIoSyncCreateThread_2(&this->m_io_sync);
// n=trig_wait((void*)&this->m_io_sync);
}
else{
st2->EResp_FLAG=st2->EResp_FLAG+1;
count++;
}
while(count<NB_UE_INST){
n=trig_wait((void*)&this->m_io_sync);
count++;
}
//while(st2->EResp_FLAG<NB_UE_INST)
// {
// n = select(this->m_io_sync.hfd, &read_ibits, NULL, NULL,NULL);
// FD_ISSET(this->m_io_sync.io_sync_entries->fd_read, &read_ibits);
// printf("..");
// }
}
else if(dir_flag==2)
{
st2->EResp_FLAG=0;
count=0;
for (UE_id = oai_emulation.info.first_ue_local; UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); UE_id++)
if (mac_xface->frame >= (UE_id * 10)) { // activate UE only after 10*UE_id frames so that different UEs turn on separately
send_exec_msg(next_slot,last_slot,mac_xface->frame,mac_xface->frame,slot,0,38820+UE_id);
// printf("Waiting for Exec Msg Complete \n");
// n = openairIoSyncCreateThread_2(&this->m_io_sync);
// n=trig_wait((void*)&this->m_io_sync);
}
else{
st2->EResp_FLAG=st2->EResp_FLAG+1;
count++;
}
while(count<NB_UE_INST){
n=trig_wait((void*)&this->m_io_sync);
count++;
}
//while(st2->EResp_FLAG<NB_UE_INST)
// {
// n = select(this->m_io_sync.hfd, &read_ibits, NULL, NULL,NULL);
// FD_ISSET(this->m_io_sync.io_sync_entries->fd_read, &read_ibits);
// printf("..");
// }
// do_UL_sig_channel2(1,0,r_re0,r_im0,r_re,r_im,s_re,s_im,UE2eNB,next_slot,abstraction_flag,frame_parms);
// do_UL_sig_channel(r_re0,r_im0,r_re,r_im,s_re,s_im,UE2eNB,next_slot,abstraction_flag,frame_parms);
for (eNB_id=oai_emulation.info.first_enb_local;eNB_id<(oai_emulation.info.first_enb_local+oai_emulation.info.nb_enb_local);eNB_id++) {
for (UE_id = oai_emulation.info.first_ue_local; UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); UE_id++){
e2u_t[eNB_id][UE_id]->eNB_id=eNB_id;
e2u_t[eNB_id][UE_id]->UE_id=UE_id;
e2u_t[eNB_id][UE_id]->r_re=r_re[eNB_id];
e2u_t[eNB_id][UE_id]->r_im=r_im[eNB_id];
e2u_t[eNB_id][UE_id]->r_re0=r_re0_u[eNB_id][UE_id];
e2u_t[eNB_id][UE_id]->r_im0=r_im0_u[eNB_id][UE_id];
e2u_t[eNB_id][UE_id]->s_im=s_im[NB_eNB_INST+UE_id];
e2u_t[eNB_id][UE_id]->s_re=s_re[NB_eNB_INST+UE_id];
e2u_t[eNB_id][UE_id]->eNB2UE=eNB2UE[eNB_id][UE_id];
e2u_t[eNB_id][UE_id]->UE2eNB=UE2eNB[UE_id][eNB_id];
e2u_t[eNB_id][UE_id]->enb_data=enb_data[eNB_id];
e2u_t[eNB_id][UE_id]->ue_data=ue_data[UE_id];
e2u_t[eNB_id][UE_id]->next_slot=&next_slot;
e2u_t[eNB_id][UE_id]->abstraction_flag=&abstraction_flag;
e2u_t[eNB_id][UE_id]->frame_parms=frame_parms;
pthread_create (&cthr_u[eNB_id][UE_id], NULL, do_UL_sig_channel_T,(void*)e2u_t[eNB_id][UE_id]);
// pthread_create (&thread[eNB_id][UE_id], NULL, do_UL_sig_channel_T,(void*)cthread);
// do_UL_sig_channel(eNB_id,UE_id,r_re0,r_im0,r_re[eNB_id],r_im[eNB_id],s_re[NB_eNB_INST+UE_id],s_im[NB_eNB_INST+UE_id],UE2eNB,next_slot,abstraction_flag,frame_parms);
// do_UL_sig_channel(eNB_id,UE_id,r_re0_u[eNB_id][UE_id],r_im0_u[eNB_id][UE_id],r_re[eNB_id],r_im[eNB_id],s_re[NB_eNB_INST+UE_id],s_im[NB_eNB_INST+UE_id],UE2eNB,next_slot,abstraction_flag,frame_parms);
}
}
for (eNB_id=oai_emulation.info.first_enb_local;eNB_id<(oai_emulation.info.first_enb_local+oai_emulation.info.nb_enb_local);eNB_id++) {
for (UE_id = oai_emulation.info.first_ue_local; UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); UE_id++){
// pthread_join(thread[eNB_id][UE_id], NULL);
pthread_join(cthr_u[eNB_id][UE_id], NULL);
}
}
for (eNB_id=oai_emulation.info.first_enb_local;eNB_id<(oai_emulation.info.first_enb_local+oai_emulation.info.nb_enb_local);eNB_id++) {
clean_param(r_re[eNB_id],r_im[eNB_id],frame_parms);
for (UE_id = oai_emulation.info.first_ue_local; UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); UE_id++){
channel_add(r_re[eNB_id],r_im[eNB_id],r_re0_u[eNB_id][UE_id],r_im0_u[eNB_id][UE_id],frame_parms);
}
}
// }
st2->EResp_FLAG=0;
count=0;
for (eNB_id=oai_emulation.info.first_enb_local;eNB_id<(oai_emulation.info.first_enb_local+oai_emulation.info.nb_enb_local);eNB_id++) {
send_exec_msg(next_slot,last_slot,mac_xface->frame,mac_xface->frame,slot,0,38810+eNB_id);
// n = openairIoSyncCreateThread_2(&this->m_io_sync);
// n=trig_wait((void*)&this->m_io_sync);
// printf("Waiting for Exec Msg Complete \n");
} // for loop
while(count<NB_eNB_INST){
n=trig_wait((void*)&this->m_io_sync);
count++;
}
// while(st2->EResp_FLAG<NB_eNB_INST)
// {
// n = select(this->m_io_sync.hfd, &read_ibits, NULL, NULL,NULL);
// FD_ISSET(this->m_io_sync.io_sync_entries->fd_read, &read_ibits);
// // printf("..");
// }
}
if ((last_slot == 1) && (mac_xface->frame == 0)
&& (abstraction_flag == 0) && (oai_emulation.info.n_frames == 1)) {
// write_output ("dlchan0.m", "dlch0",
// &(PHY_vars_UE_g[0]->lte_ue_common_vars.dl_ch_estimates[0][0][0]),
// (6 * (PHY_vars_UE_g[0]->lte_frame_parms.ofdm_symbol_size)), 1, 1);
// write_output ("dlchan1.m", "dlch1",
// &(PHY_vars_UE_g[0]->lte_ue_common_vars.dl_ch_estimates[1][0][0]),
// (6 * (PHY_vars_UE_g[0]->lte_frame_parms.ofdm_symbol_size)), 1, 1);
// write_output ("dlchan2.m", "dlch2",
// &(PHY_vars_UE_g[0]->lte_ue_common_vars.dl_ch_estimates[2][0][0]),
// (6 * (PHY_vars_UE_g[0]->lte_frame_parms.ofdm_symbol_size)), 1, 1);
// write_output ("pbch_rxF_comp0.m", "pbch_comp0",
// PHY_vars_UE_g[0]->lte_ue_pbch_vars[0]->rxdataF_comp[0], 6 * 12 * 4, 1, 1);
// write_output ("pbch_rxF_llr.m", "pbch_llr",
// PHY_vars_UE_g[0]->lte_ue_pbch_vars[0]->llr, (frame_parms->Ncp == 0) ? 1920 : 1728, 1, 4);
}
/*
if ((last_slot==1) && (mac_xface->frame==1)) {
write_output("dlsch_rxF_comp0.m","dlsch0_rxF_comp0",PHY_vars_UE->lte_ue_dlsch_vars[eNB_id]->rxdataF_comp[0],300*(-(PHY_vars_UE->lte_frame_parms.Ncp*2)+14),1,1);
write_output("pdcch_rxF_comp0.m","pdcch0_rxF_comp0",PHY_vars_UE->lte_ue_pdcch_vars[eNB_id]->rxdataF_comp[0],4*300,1,1);
}
*/
if (next_slot %2 == 0){
clock_gettime (CLOCK_REALTIME, &time_spec);
time_last = time_now;
time_now = (unsigned long) time_spec.tv_nsec;
td = (int) (time_now - time_last);
if (td>0) {
td_avg = (int)(((K*(long)td) + (((1<<3)-K)*((long)td_avg)))>>3); // in us
LOG_I(EMU,"sleep frame %d, average time difference %ldns, CURRENT TIME DIFF %dus, avgerage difference from the target %dus\n",
mac_xface->frame, td_avg, td/1000,(td_avg-TARGET_SF_TIME_NS)/1000);
}
if (td_avg<(TARGET_SF_TIME_NS - SF_DEVIATION_OFFSET_NS)){
sleep_time_us += SLEEP_STEP_US;
}
else if (td_avg > (TARGET_SF_TIME_NS + SF_DEVIATION_OFFSET_NS)) {
sleep_time_us-= SLEEP_STEP_US;
}
}// end if next_slot%2
} //end of slot
Layer::Layer(const int pnnodes, const int nnodes, const double lrate,
const double lambda, ActFunc actfunc)
: lrate(lrate), lambda(lambda), act(actfunc.act), actd(actfunc.actd),
W(pnnodes+1, nnodes), grad(pnnodes+1, nnodes) {
randominit(6.0);
}
/* MAIN------------------------------------------------------------------------*/
int main(int argc, char *argv[])
{
//Initialization
struct sockaddr_in localaddr,remoteaddr;
SOCKET s;
char send_buffer[BUFFESIZE],receive_buffer[BUFFESIZE];
int n,bytes,addrlen;
int SN_expected = 0; //added.
int SN_checked = -1; //added.
addrlen = sizeof(remoteaddr);
memset(&localaddr,0,sizeof(localaddr));//clean up the structure
memset(&remoteaddr,0,sizeof(remoteaddr));//clean up the structure
randominit();
// WSSTARTUP
if (WSAStartup(WSVERS, &wsadata) != 0)
{
WSACleanup();
printf("WSAStartup failed\n");
}
//SOCKET
s = socket(PF_INET, SOCK_DGRAM, 0);
if (s <0)
{
printf("socket failed\n");
}
localaddr.sin_family = AF_INET;
localaddr.sin_addr.s_addr = INADDR_ANY;//server address should be local
if (argc != 4)
{
printf("2012 code USAGE: server port lossesbit(0 or 1) damagebit(0 or 1)\n");
exit(1);
}
localaddr.sin_port = htons((u_short)atoi(argv[1]));
int remotePort=1234;
packets_damagedbit=atoi(argv[3]);
packets_lostbit=atoi(argv[2]);
if (packets_damagedbit<0 || packets_damagedbit>1 || packets_lostbit<0 || packets_lostbit>1)
{
printf("2012 code USAGE: server port lossesbit(0 or 1) damagebit(0 or 1)\n");
exit(0);
}
//REMOTE HOST IP AND PORT
remoteaddr.sin_family = AF_INET;
remoteaddr.sin_addr.s_addr = inet_addr("127.0.0.1");
remoteaddr.sin_port = htons(remotePort);
//int counter=0;
//BIND
if (bind(s,(struct sockaddr *)(&localaddr),sizeof(localaddr)) != 0)
{
printf("Bind failed!\n");
exit(0);
}
FILE *fout=fopen("file1_saved.txt","w");// Open file to save the incoming packets
while (1)
{
//RECEIVE
bytes = recvfrom(s, receive_buffer, SEGMENTSIZE, 0,(struct sockaddr *)(&remoteaddr),&addrlen);
//PROCESS REQUEST
n=0;
while (n<bytes)
{
n++;
if ((bytes < 0) || (bytes == 0)) break;
if (receive_buffer[n] == '\n') /*end on a LF*/
{
receive_buffer[n] = '\0';
break;
}
if (receive_buffer[n] == '\r') /*ignore CRs*/
receive_buffer[n] = '\0';
}
if ((bytes < 0) || (bytes == 0)) break;
printf("\n================================================\n");
printf("RECEIVED --> %s \n",receive_buffer);
/**
* @brief Coding from here
*/
//"close" handling
if (strncmp(receive_buffer,"CLOSE",5)==0)
{//if client says "CLOSE", the last packet for the file was sent. Close the file
//Remember that the packet carrying "CLOSE" may be lost or damaged!
fclose(fout);
closesocket(s);
printf("Server saved file1_saved.txt \n");//you have to manually check to see if this file is identical to file1.txt
exit(0);
}
//SN check and CRC check.if pass save the line.
if(wy_SN_check(SN_expected,receive_buffer)&& wy_CRC_check(receive_buffer))
{
save_line_without_header(receive_buffer,fout); //save without header.
SN_expected++;
SN_checked ++;
}
//default :build and send ACK using SN_checked.
if(SN_checked >= 0)
{
wy_ACK_build(send_buffer, SN_checked);
send_unreliably(s,send_buffer,remoteaddr);
}
/**
* @brief coding end.
*/
}
closesocket(s);
exit(0);
}
int main(int argc, char *argv[])
{
int ret,ret2;
unsigned int errors,uerrors,errors2,crc_misses,iterations,trials,trials2,block_length,errors3,trials3;
double SNR,sigma,rate=.5;
unsigned char qbits,mcs;
char done0=0;
char done1=1;
char done2=1;
unsigned int coded_bits;
unsigned char NB_RB=25;
int num_pdcch_symbols = 1;
int subframe = 6;
randominit(0);
logInit();
lte_param_init(1,1,1,0,0,3);
PHY_vars_eNB->dlsch_eNB[0][0] = new_eNB_dlsch(1,8,NB_RB,0);
PHY_vars_UE->dlsch_ue[0][0] = new_ue_dlsch(1,8,4,NB_RB,0);
PHY_vars_eNB->dlsch_eNB[0][1] = new_eNB_dlsch(1,8,NB_RB,0);
PHY_vars_UE->dlsch_ue[0][1] = new_ue_dlsch(1,8,4,NB_RB,0);
if (argc>1)
mcs = atoi(argv[1]);
else
mcs = 0;
printf("NB_RB %d\n",NB_RB);
DLSCH_alloc_pdu.rah = 0;
DLSCH_alloc_pdu.rballoc = DLSCH_RB_ALLOC;
DLSCH_alloc_pdu.TPC = 0;
DLSCH_alloc_pdu.dai = 0;
DLSCH_alloc_pdu.harq_pid = 0;
//DLSCH_alloc_pdu2.tb_swap = 0;
DLSCH_alloc_pdu.mcs = mcs;
DLSCH_alloc_pdu.ndi = 1;
DLSCH_alloc_pdu.rv = 0;
if (argc>2)
qbits = atoi(argv[2]);
else
qbits = 4;
printf("Quantization bits %d\n",qbits);
generate_eNB_dlsch_params_from_dci(subframe,
&DLSCH_alloc_pdu,
0x1234,
format1,
PHY_vars_eNB->dlsch_eNB[0],
&PHY_vars_eNB->lte_frame_parms,
PHY_vars_eNB->pdsch_config_dedicated,
SI_RNTI,
0,
P_RNTI,
0); //change this later
generate_ue_dlsch_params_from_dci(subframe,
&DLSCH_alloc_pdu,
C_RNTI,
format1,
PHY_vars_UE->dlsch_ue[0],
&PHY_vars_UE->lte_frame_parms,
PHY_vars_UE->pdsch_config_dedicated,
SI_RNTI,
0,
P_RNTI);
coded_bits = get_G(&PHY_vars_eNB->lte_frame_parms,
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->nb_rb,
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rb_alloc,
get_Qm(mcs),
1,
num_pdcch_symbols,
0,
subframe);
printf("Coded_bits (G) = %d\n",coded_bits);
block_length = dlsch_tbs25[get_I_TBS(mcs)][NB_RB-1]>>3;
printf("Block_length = %d bytes (%d bits, rate %f), mcs %d, I_TBS %d, F %d, NB_RB %d\n",block_length,
dlsch_tbs25[get_I_TBS(mcs)][NB_RB-1],(double)dlsch_tbs25[get_I_TBS(mcs)][NB_RB-1]/coded_bits,
mcs,get_I_TBS(mcs),PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->F,NB_RB);
for (SNR=-5; SNR<15; SNR+=.1) {
sigma = pow(10.0,-.05*SNR);
printf("\n\nSNR %f dB => sigma %f\n",SNR,sigma);
errors=0;
crc_misses=0;
errors2=0;
errors3=0;
iterations=0;
if (done0 == 0) {
ret = test_logmap8(PHY_vars_eNB->dlsch_eNB[0][0],
PHY_vars_UE->dlsch_ue[0][0],
coded_bits,
NB_RB,
sigma, // noise standard deviation
qbits,
block_length, // block length bytes
NTRIALS,
&errors,
&trials,
&uerrors,
&crc_misses,
&iterations,
num_pdcch_symbols,
subframe);
if (ret>=0)
printf("%f,%f,%f,%f\n",SNR,(double)errors/trials,(double)crc_misses/trials,(double)iterations/trials);
if (((double)errors/trials) < 1e-2)
done0=1;
}
if ((done0==1) && (done1==1) && (done2==1)) {
printf("done\n");
break;
}
}
return(0);
}
/* MAIN------------------------------------------------------------------------*/
int main(int argc, char *argv[])
{
//Initialization
struct sockaddr_in localaddr,remoteaddr;
SOCKET s;
char send_buffer[BUFFESIZE],receive_buffer[BUFFESIZE];
int n,bytes,addrlen;
int SN_expected = 0; //added.
int SN_checked = -1; //added.
addrlen = sizeof(remoteaddr);
memset(&localaddr,0,sizeof(localaddr));//clean up the structure
memset(&remoteaddr,0,sizeof(remoteaddr));//clean up the structure
randominit();
// WSSTARTUP
if (WSAStartup(WSVERS, &wsadata) != 0)
{
WSACleanup();
printf("WSAStartup failed\n");
}
//SOCKET
s = socket(PF_INET, SOCK_DGRAM, 0);
if (s <0)
{
printf("socket failed\n");
}
localaddr.sin_family = AF_INET;
localaddr.sin_addr.s_addr = INADDR_ANY;//server address should be local
if (argc != 4)
{
printf("2012 code USAGE: server port lossesbit(0 or 1) damagebit(0 or 1)\n");
exit(1);
}
localaddr.sin_port = htons((u_short)atoi(argv[1]));
int remotePort=1234;
packets_damagedbit=atoi(argv[3]);
packets_lostbit=atoi(argv[2]);
if (packets_damagedbit<0 || packets_damagedbit>1 || packets_lostbit<0 || packets_lostbit>1)
{
printf("2012 code USAGE: server port lossesbit(0 or 1) damagebit(0 or 1)\n");
exit(0);
}
//REMOTE HOST IP AND PORT
remoteaddr.sin_family = AF_INET;
remoteaddr.sin_addr.s_addr = inet_addr("127.0.0.1");
remoteaddr.sin_port = htons(remotePort);
int counter=0;
//BIND
if (bind(s,(struct sockaddr *)(&localaddr),sizeof(localaddr)) != 0)
{
printf("Bind failed!\n");
exit(0);
}
FILE *fout=fopen("file1_saved.txt","w");// Open file to save the incoming packets
while (1)
{
//RECEIVE
bytes = recvfrom(s, receive_buffer, SEGMENTSIZE, 0,(struct sockaddr *)(&remoteaddr),&addrlen);
//PROCESS REQUEST
n=0;
while (n<bytes)
{
n++;
if ((bytes < 0) || (bytes == 0)) break;
if (receive_buffer[n] == '\n') /*end on a LF*/
{
receive_buffer[n] = '\0';
break;
}
if (receive_buffer[n] == '\r') /*ignore CRs*/
receive_buffer[n] = '\0';
}
if ((bytes < 0) || (bytes == 0)) break;
printf("\n================================================\n");
printf("RECEIVED --> %s \n",receive_buffer);
/**
* @brief Coding from here
*/
printf("Alan: when the expected SN is 3...%d...",wy_SN_check(3, receive_buffer));
if (strncmp(receive_buffer,"PACKET",6)==0) //check
{
sscanf(receive_buffer, "PACKET %d",&counter);
//SEND ACK
sprintf(send_buffer,"ACKNOW %d \r\n",counter);
send_unreliably(s,send_buffer,remoteaddr);
//save the received line without header
save_line_without_header(receive_buffer,fout);
}
else
{
if (strncmp(receive_buffer,"CLOSE",5)==0)
{//if client says "CLOSE", the last packet for the file was sent. Close the file
//Remember that the packet carrying "CLOSE" may be lost or damaged!
fclose(fout);
closesocket(s);
printf("Server saved file1_saved.txt \n");//you have to manually check to see if this file is identical to file1.txt
exit(0);
}
else
{//it is not PACKET nor CLOSE, therefore there might be a damaged packet
//in this assignment, CLOSE always arrive (read UDP_supporting_functions_2012.c to see why...)
//do nothing, ignoring the damaged packet? Or send a negative ACK? It is up to you to decide.
}
/**
* @brief coding end.
*/
}
}
closesocket(s);
exit(0);
}
int main(int argc, char* argv[])
{
// Fill input vector with complex sinusoid
int nb_antennas = 1;
int length = 100000;
int i,j,n;
double input_amp = pow(10.0,(.05*INPUT_dBm))/sqrt(2);
double nf[2] = {3.0,3.0};
double ip =0.0;
double path_loss_dB = -90, rx_gain_dB = 125;
double tx_pwr, rx_pwr;
uint32_t **input = malloc(nb_antennas*sizeof(uint32_t*));
uint32_t **output = malloc(nb_antennas*sizeof(uint32_t*));
double **s_re = malloc(nb_antennas*sizeof (double *));
double **s_im = malloc(nb_antennas*sizeof (double *));
double **r_re = malloc(nb_antennas*sizeof (double *));
double **r_im = malloc(nb_antennas*sizeof (double *));
channel_desc_t *channel;
srand(0);
randominit(0);
set_taus_seed(0);
channel = new_channel_desc_scm(nb_antennas,
nb_antennas,
AWGN,
7.68e6,
0,
0,
path_loss_dB);
for (i=0; i<nb_antennas; i++) {
s_re[i] = (double *)malloc(length * sizeof (double ));
s_im[i] = (double *)malloc(length * sizeof (double ));
r_re[i] = (double *)malloc(length * sizeof (double ));
r_im[i] = (double *)malloc(length * sizeof (double ));
input[i] = (uint32_t*)malloc(length * sizeof(uint32_t));
output[i] = (uint32_t*)malloc(length * sizeof(uint32_t));
}
for (i=0; i<nb_antennas; i++) {
// generate a random QPSK signal
for (j=0; j<length/2; j++) {
input[i][j] = QPSK[taus()&3];
}
}
tx_pwr = dac_fixed_gain(s_re,
s_im,
input,
0,
nb_antennas,
length,
0,
512,
14,
15.0);
multipath_channel(channel,s_re,s_im,r_re,r_im,
length,0);
rf_rx_simple(r_re,
r_im,
nb_antennas,
length,
1.0/7.68e6 * 1e9,// sampling time (ns)
rx_gain_dB - 66.227);
/*
rf_rx(r_re,
r_im,
nb_antennas,
length,
1.0/6.5e6 * 1e9,// sampling time (ns)
1000.0 , //freq offset (Hz)
0.0, //drift (Hz) NOT YET IMPLEMENTED
nf, //noise_figure NOT YET IMPLEMENTED
-INPUT_dBm, //rx_gain (dB)
200, // IP3_dBm (dBm)
&ip, // initial phase
30.0e3, // pn_cutoff (kHz)
-500.0, // pn_amp (dBc)
-0.0, // IQ imbalance (dB),
0.0); // IQ phase imbalance (rad)
*/
adc(r_re,
r_im,
0,
0,
output,
nb_antennas,
length,
12);
write_output("s_im.m","s_im",s_im[0],length,1,7);
write_output("s_re.m","s_re",s_re[0],length,1,7);
write_output("r_im.m","r_im",r_im[0],length,1,7);
write_output("r_re.m","r_re",r_re[0],length,1,7);
write_output("input.m","rfin",input[0],length,1,1);
write_output("output.m","rfout",output[0],length,1,1);
}
/* MAIN------------------------------------------------------------------------*/
int main(int argc, char *argv[])
{
// WSSTARTUP
if (WSAStartup(WSVERS, &wsadata) != 0)
{
WSACleanup();
printf("WSAStartup failed\n");
}
// Initialization
memset(&localaddr, 0, sizeof(localaddr));//clean up
int localPort=1234;
localaddr.sin_family = AF_INET;
localaddr.sin_addr.s_addr = INADDR_ANY;//server address should be local
localaddr.sin_port = htons(localPort);
memset(&remoteaddr, 0, sizeof(remoteaddr));//clean up
randominit();
SOCKET s;
char send_buffer[BUFFESIZE],receive_buffer[BUFFESIZE];
remoteaddr.sin_family = AF_INET;
// Dealing with user's arguments
if (argc != 5)
{
printf("2011 code USAGE: client remote_IP-address port lossesbit(0 or 1) damagebit(0 or 1)\n");
exit(1);
}
remoteaddr.sin_addr.s_addr = inet_addr(argv[1]);//IP address
remoteaddr.sin_port = htons((u_short)atoi(argv[2]));//always get the port number
packets_lostbit=atoi(argv[3]);
packets_damagedbit=atoi(argv[4]);
if (packets_damagedbit<0 || packets_damagedbit>1 || packets_lostbit<0 || packets_lostbit>1)
{
printf("2011 code USAGE: client remote_IP-address port lossesbit(0 or 1) damagebit(0 or 1)\n");
exit(0);
}
//CREATE CLIENT'S SOCKET
s = socket(AF_INET, SOCK_DGRAM, 0);//this is a UDP socket
if (s < 0)
{
printf("socket failed\n");
exit(1);
}
//NONBLOCKING OPTION for Windows
u_long iMode=1;
ioctlsocket(s,FIONBIO,&iMode);
//Open A TEXT FILE
int counter=0;//sequence of packets
int ackcounter=0;
char temp_buffer[BUFFESIZE];
char CRC_str[BUFFESIZE];
FILE *fin=fopen("file1_Windows.txt","r");
if(fin==NULL)
{
printf("cannot open file\n");
exit(0);
}
while (1)
{
memset(send_buffer, 0, sizeof(send_buffer));//clean up the send_buffer before reading the next line
fgets(send_buffer,SEGMENTSIZE,fin);
if (!feof(fin)) {
//add a headert to the packet with the sequence number
sprintf(temp_buffer,"PACKET %d ",counter);
counter++;
strcat(temp_buffer,send_buffer);
strcpy(send_buffer,temp_buffer);
//---------coding-------
temp_buffer[strlen(temp_buffer)-1] = 0;
sprintf(CRC_str,"%d ",CRCpolynomial(temp_buffer));
strcat(CRC_str,send_buffer);
strcpy(send_buffer, CRC_str);
//----------------------
send_unreliably(s,send_buffer, remoteaddr);
Sleep(1000);
//RECEIVE
memset(receive_buffer, 0, sizeof(receive_buffer));
recv_nonblocking(s,receive_buffer, remoteaddr);//you can replace this, but use MSG_DONTWAIT to get non-blocking recv
printf("RECEIVE -->%s__\n",receive_buffer);
//printf("@Alan the CRC check result is %d\n",wy_CRC_check(receive_buffer));
Sleep(1000);
}
else
{
printf("end of the file \n");
memset(send_buffer, 0, sizeof(send_buffer));
sprintf(send_buffer,"CLOSE \r\n");
send_unreliably(s,send_buffer,remoteaddr);//we actually send this reliably, read UDP_supporting_functions_2012.c
break;
}
}
//CLOSESOCKET
printf("closing everything on the client's side ... \n");
fclose(fin);
closesocket(s);
exit(0);
}
static void
consinit(void)
{
todinit();
randominit();
}