you can refer to the file mac/wireless-phy.cc, including a function
--WirelessPhy::sendUp(Packet *p) in which there are a few lines as follows:
if(propagation_)
{
s.stamp((MobileNode*)node(), ant_, 0, lambda_);
Pr = propagation_->Pr(&p->txinfo_, &s, this);
/******my code*****/
struct hdr_ip *ih = HDR_IP(p);
fprintf(fp,"%f %d->%d[%d->%d] %e=====%s\n",Scheduler::instance().clock(),
p->txinfo_.getNode()->nodeid(),node()->nodeid(),ih->saddr(),ih->daddr(),Pr,
Pr<CSThresh_ ? "detect fail": ((Pr<RXThresh_ ? "recv error" : "success
recv")));
.......
}
The receiver calculate the power with which the packet are received
according to the attenuation algorithm in ns2 simulator, so the @Pr =
propagation_->Pr(&p->txinfo_, &s, this);@
maybe help us to judge the sender's signal strength influenced by the sender's
hardware and software environment.
You could tell me if you had a better resolution.
