question about measuring packet delivery ratio by referring wifi-example-sim.cc

[xiexi...@gmail.com]

I intend to collect packet delivery ratio of MANET, and write according codes by referring wifi-example-sim.cc. The program runs successfully,  however,  the output is 0!!! I have checked my program many times, but i cannot figure out what was wrong. Can anybody help in correcting it?

The following is the code in .hpp file.

 Config::ConnectWithoutContext("/NodeList/*/ApplicationList/*/$ns3::PacketSink/Rx", MakeCallback (&ReceivePacket));

   

   std::cout << "receive: " << PRecv << std::endl;   

   std::string Myexperiment = m_experiment;

   

   std::string strategy ("wifi-default");

   

   std::string input;

   {

   std::stringstream sstr;

       sstr << maxRange;

       input = sstr.str ();

   }

   

   std::string runID;

   {

std::stringstream sstr;

    sstr << maxRange;

sstr << "_";

sstr << m_run;

    runID = sstr.str ();

  }

   

   DataCollector data;

   data.DescribeRun (Myexperiment,strategy,input,runID);

   

   

   Ptr<PacketCounterCalculator> appTx = CreateObject<PacketCounterCalculator>();

   appTx->SetKey ("sender-tx-packets");

   appTx->SetContext ("nodeAll");

   Config::Connect ("/NodeList/*/ApplicationList/*/$ns3::OnOffApplication/Tx",MakeCallback (&PacketCounterCalculator::PacketUpdate,appTx));

   data.AddDataCalculator (appTx);

   

   

   Ptr<CounterCalculator<uint32_t> > appRx =

      CreateObject<CounterCalculator<uint32_t> >();

   appRx->SetKey ("receiver-rx-packets");

   appRx->SetContext ("nodeAll");

   Config::Connect ("/NodeList/*/ApplicationList/*/$ns3::PacketSink/Rx",

                    MakeBoundCallback (&RxCallback,

                                 appRx));

   data.AddDataCalculator (appRx);

   

   std::string format ("omnet");

   Ptr<DataOutputInterface> output = 0;

   output = CreateObject<OmnetDataOutput>();

   output->Output (data);

   output->GetFilePrefix ();