double
FemtoCellUrbanAreaChannelRealization::GetPathLoss (void)
{
/*
* Path loss Models from sect. 5.2 in
* 3GPP TSG RAN WG4 R4-092042
*
* Alternative simplified model based on LTE-A evaluation methodology which avoids modeling any walls.
*/
double distance;
double minimumCouplingLoss = 45; //[dB] - see 3GPP TSG RAN WG4 #42bis (R4-070456)
double floorPenetration = 0.0;
//18.3 n ((n+2)/(n+1)-0.46)
if (GetSourceNode ()->GetNodeType () == NetworkNode::TYPE_UE
&& ( GetDestinationNode ()->GetNodeType () == NetworkNode::TYPE_ENODEB || GetDestinationNode ()->GetNodeType () == NetworkNode::TYPE_HOME_BASE_STATION) )
{
UserEquipment* ue = (UserEquipment*) GetSourceNode ();
ENodeB* enb = (ENodeB*) GetDestinationNode ();
if( enb->GetCell()->GetCellCenterPosition()->GetCoordinateZ() > 0
&& ue->IsIndoor()
&& enb->GetCell()->GetCellCenterPosition()->GetCoordinateZ() != ue->GetCell()->GetCellCenterPosition()->GetCoordinateZ())
{
int n = (int) abs( enb->GetCell()->GetCellCenterPosition()->GetCoordinateZ() - ue->GetCell()->GetCellCenterPosition()->GetCoordinateZ() );
floorPenetration = 18.3 * pow( n, ((n+2)/(n+1)-0.46));
}
distance = ue->GetMobilityModel ()->GetAbsolutePosition ()->GetDistance (enb->GetMobilityModel ()->GetAbsolutePosition ());
}
else if (GetDestinationNode ()->GetNodeType () == NetworkNode::TYPE_UE
&& ( GetSourceNode ()->GetNodeType () == NetworkNode::TYPE_ENODEB || GetSourceNode ()->GetNodeType () == NetworkNode::TYPE_HOME_BASE_STATION) )
{
UserEquipment* ue = (UserEquipment*) GetDestinationNode ();
ENodeB* enb = (ENodeB*) GetSourceNode ();
if( enb->GetCell()->GetCellCenterPosition()->GetCoordinateZ() > 0
&& ue->IsIndoor()
&& enb->GetCell()->GetCellCenterPosition()->GetCoordinateZ() != ue->GetCell()->GetCellCenterPosition()->GetCoordinateZ())
{
int n = (int) abs( enb->GetCell()->GetCellCenterPosition()->GetCoordinateZ() - ue->GetCell()->GetCellCenterPosition()->GetCoordinateZ() );
floorPenetration = 18.3 * pow( n, ((n+2)/(n+1)-0.46));
}
distance = ue->GetMobilityModel ()->GetAbsolutePosition ()->GetDistance (enb->GetMobilityModel ()->GetAbsolutePosition ());
}
m_pathLoss = max( minimumCouplingLoss, 127 + ( 30 * log10 (distance * 0.001) ) + floorPenetration);
return m_pathLoss;
}
double
MacroCellUrbanAreaChannelRealization::GetPathLoss (void)
{
/*
* According to --- insert standard 3gpp ---
* the Path Loss Model For Urban Environment is
* L = I + 37.6log10(R)
* R, in kilometers, is the distance between two nodes
* I = 128.1 at 2GHz
*/
double distance;
double externalWallAttenuation = 20; //[dB]
NetworkNode* src = GetSourceNode ();
NetworkNode* dst = GetDestinationNode ();
distance = src->GetMobilityModel ()->GetAbsolutePosition ()->GetDistance (
dst->GetMobilityModel ()->GetAbsolutePosition ());
/*
if (GetSourceNode ()->GetNodeType () == NetworkNode::TYPE_UE
&& GetDestinationNode ()->GetNodeType () == NetworkNode::TYPE_ENODEB)
{
UserEquipment* ue = (UserEquipment*) GetSourceNode ();
ENodeB* enb = (ENodeB*) GetDestinationNode ();
distance = ue->GetMobilityModel ()->GetAbsolutePosition ()->GetDistance (enb->GetMobilityModel ()->GetAbsolutePosition ());
}
else if (GetDestinationNode ()->GetNodeType () == NetworkNode::TYPE_UE
&& GetSourceNode ()->GetNodeType () == NetworkNode::TYPE_ENODEB)
{
UserEquipment* ue = (UserEquipment*) GetDestinationNode ();
ENodeB* enb = (ENodeB*) GetSourceNode ();
distance = ue->GetMobilityModel ()->GetAbsolutePosition ()->GetDistance (enb->GetMobilityModel ()->GetAbsolutePosition ());
}
*/
m_pathLoss = 128.1 + (37.6 * log10 (distance * 0.001));
UserEquipment* ue;
if (GetSourceNode ()->GetNodeType () == NetworkNode::TYPE_UE)
{
ue = (UserEquipment*) GetSourceNode ();
}
else
{
ue = (UserEquipment*) GetDestinationNode ();
}
if ( ue->IsIndoor() )
{
m_pathLoss = m_pathLoss + externalWallAttenuation;
}
return m_pathLoss;
}
Packet*
RadioBearer::CreatePacket (int bytes)
{
Packet *p = new Packet ();
p->SetID(Simulator::Init()->GetUID ());
p->SetTimeStamp(Simulator::Init()->Now ());
UDPHeader *udp = new UDPHeader (GetClassifierParameters ()->GetSourcePort(),
GetClassifierParameters ()->GetDestinationPort ());
p->AddUDPHeader(udp);
IPHeader *ip = new IPHeader (GetClassifierParameters ()->GetSourceID (),
GetClassifierParameters ()->GetDestinationID());
p->AddIPHeader(ip);
PDCPHeader *pdcp = new PDCPHeader ();
p->AddPDCPHeader (pdcp);
RLCHeader *rlc = new RLCHeader ();
p->AddRLCHeader(rlc);
PacketTAGs *tags = new PacketTAGs ();
tags->SetApplicationType(PacketTAGs::APPLICATION_TYPE_INFINITE_BUFFER);
p->SetPacketTags(tags);
if (_APP_TRACING_)
{
/*
* Trace format:
*
* TX APPLICATION_TYPE BEARER_ID SIZE SRC_ID DST_ID TIME
*/
UserEquipment* ue = (UserEquipment*) GetApplication ()->GetDestination ();
std::cout << "TX";
switch (p->GetPacketTags ()->GetApplicationType ())
{
case Application::APPLICATION_TYPE_VOIP:
{
std::cout << " VOIP";
break;
}
case Application::APPLICATION_TYPE_TRACE_BASED:
{
std::cout << " VIDEO";
break;
}
case Application::APPLICATION_TYPE_CBR:
{
std::cout << " CBR";
break;
}
case Application::APPLICATION_TYPE_INFINITE_BUFFER:
{
std::cout << " INF_BUF";
break;
}
default:
{
std::cout << " UNDEFINED";
break;
}
}
if (bytes > 1490) bytes = 1490;
else bytes = bytes - 13;
std::cout << " ID " << p->GetID ()
<< " B " << GetRlcEntity ()->GetRlcEntityIndex ()
<< " SIZE " << bytes
<< " SRC " << GetSource ()->GetIDNetworkNode ()
<< " DST " << GetDestination ()->GetIDNetworkNode ()
<< " T " << Simulator::Init()->Now()
<< " " << ue->IsIndoor () << std::endl;
}
return p;
}
