void
RadioBearer::UpdateAverageTransmissionRate ()
{
/*
* Update Transmission Data Rate with
* a Moving Average
* R'(t+1) = (0.8 * R'(t)) + (0.2 * r(t))
*/
double rate = (GetTransmittedBytes () * 8)/(Simulator::Init()->Now() - GetLastUpdate());
double beta = 0.2;
m_averageTransmissionRate =
((1 - beta) * m_averageTransmissionRate) + (beta * rate);
if (m_averageTransmissionRate < 1)
{
m_averageTransmissionRate = 1;
}
/*
#ifdef SCHEDULER_DEBUG
std::cout << "UPDATE AVG RATE, bearer " << GetApplication ()->GetApplicationID () <<
"\n\t tx byte " << GetTransmittedBytes () <<
"\n\t interval " << Simulator::Init()->Now() - GetLastUpdate() <<
"\n\t old rate " << m_averageTransmissionRate <<
"\n\t new rate " << rate <<
"\n\t new estimated rate " << m_averageTransmissionRate << std::endl;
#endif
*/
ResetTransmittedBytes();
}
double
RadioBearer::GetNowTransmissionRate () //new added~
{
double rate = (GetTransmittedBytes () * 8)/(Simulator::Init()->Now() - GetLastUpdate());
return rate;
}
