wifi-simple-infra.cc~

//note 2 march 22:02. in this script server model is not working. basically packets is sent from client to client.
//propagation model seems to work
//next: server-client / sink model

//note 2 march 22:16. server installed in ap: apps = server1.Install (c.Get (0));
// previously there is a "port unreachable message". now it's gone.


/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2009 The Boeing Company
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

// 
// This script configures two nodes on an 802.11b physical layer, with
// 802.11b NICs in infrastructure mode, and by default, the station sends 
// one packet of 1000 (application) bytes to the access point.  The 
// physical layer is configured
// to receive at a fixed RSS (regardless of the distance and transmit
// power); therefore, changing position of the nodes has no effect. 
//
// There are a number of command-line options available to control
// the default behavior.  The list of available command-line options
// can be listed with the following command:
// ./waf --run "wifi-simple-infra --help"
//
// For instance, for this configuration, the physical layer will
// stop successfully receiving packets when rss drops below -97 dBm.
// To see this effect, try running:
//
// ./waf --run "wifi-simple-infra --rss=-97 --numPackets=20"
// ./waf --run "wifi-simple-infra --rss=-98 --numPackets=20"
// ./waf --run "wifi-simple-infra --rss=-99 --numPackets=20"
//
// Note that all ns-3 attributes (not just the ones exposed in the below
// script) can be changed at command line; see the documentation.
//
// This script can also be helpful to put the Wifi layer into verbose
// logging mode; this command will turn on all wifi logging:
// 
// ./waf --run "wifi-simple-infra --verbose=1"
//
// When you are done, you will notice two pcap trace files in your directory.
// If you have tcpdump installed, you can try this:
//
// tcpdump -r wifi-simple-infra-0-0.pcap -nn -tt
//
//test

#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/mobility-module.h"
#include "ns3/config-store-module.h"
#include "ns3/wifi-module.h"
#include "ns3/internet-module.h"
#include "ns3/flow-monitor-module.h"
#include "ns3/applications-module.h"

#include <iostream>
#include <fstream>
#include <vector>
#include <string>

using namespace ns3;

NS_LOG_COMPONENT_DEFINE ("WifiSimpleInfra");

int main (int argc, char *argv[])
{
  std::string phyMode ("DsssRate5_5Mbps");
  double rss = -80;  // -dBm
  uint32_t packetSize = 1000; // bytes
  uint32_t numPackets = 100000;
  double interval = 0.001; // was 1.0 second
  bool verbose = false;

  CommandLine cmd;

  cmd.AddValue ("phyMode", "Wifi Phy mode", phyMode);
  cmd.AddValue ("rss", "received signal strength", rss);
  cmd.AddValue ("packetSize", "size of application packet sent", packetSize);
  cmd.AddValue ("numPackets", "number of packets generated", numPackets);
  cmd.AddValue ("interval", "interval (seconds) between packets", interval);
  cmd.AddValue ("verbose", "turn on all WifiNetDevice log components", verbose);

  cmd.Parse (argc, argv);
  // Convert to time object
  //Time interPacketInterval = Seconds (interval);

  // disable fragmentation for frames below 2200 bytes
  Config::SetDefault ("ns3::WifiRemoteStationManager::FragmentationThreshold", StringValue ("2200"));
  // turn off RTS/CTS for frames below 2200 bytes
  Config::SetDefault ("ns3::WifiRemoteStationManager::RtsCtsThreshold", StringValue ("2200"));
  // Fix non-unicast data rate to be the same as that of unicast
  Config::SetDefault ("ns3::WifiRemoteStationManager::NonUnicastMode", 
                      StringValue (phyMode));

  NodeContainer c;
  c.Create (3);

  // The below set of helpers will help us to put together the wifi NICs we want
  WifiHelper wifi;
  if (verbose)
    {
      wifi.EnableLogComponents ();  // Turn on all Wifi logging
    }
  wifi.SetStandard (WIFI_PHY_STANDARD_80211b);

  YansWifiPhyHelper wifiPhy =  YansWifiPhyHelper::Default ();
  // This is one parameter that matters when using FixedRssLossModel
  // set it to zero; otherwise, gain will be added
  wifiPhy.Set ("RxGain", DoubleValue (0) ); 
  // ns-3 supports RadioTap and Prism tracing extensions for 802.11b
  wifiPhy.SetPcapDataLinkType (YansWifiPhyHelper::DLT_IEEE802_11_RADIO); 

  YansWifiChannelHelper wifiChannel;
  wifiChannel.SetPropagationDelay ("ns3::ConstantSpeedPropagationDelayModel");
  // The below FixedRssLossModel will cause the rss to be fixed regardless
  // of the distance between the two stations, and the transmit power
  wifiChannel.AddPropagationLoss ("ns3::LogDistancePropagationLossModel","Exponent",DoubleValue (3.0),
          "ReferenceLoss", DoubleValue (40.0459));
  wifiPhy.SetChannel (wifiChannel.Create ());

  // Add a non-QoS upper mac, and disable rate control
  NqosWifiMacHelper wifiMac = NqosWifiMacHelper::Default ();
  wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",
                                "DataMode",StringValue (phyMode),
                                "ControlMode",StringValue (phyMode));

  // Setup the rest of the upper mac
  Ssid ssid = Ssid ("wifi-default");
  // setup sta.
  wifiMac.SetType ("ns3::StaWifiMac",
                   "Ssid", SsidValue (ssid),
                   "ActiveProbing", BooleanValue (false));
  NetDeviceContainer staDevice = wifi.Install (wifiPhy, wifiMac, c.Get (1));
  NetDeviceContainer devices = staDevice;

  NetDeviceContainer staDevice2 = wifi.Install (wifiPhy, wifiMac, c.Get (2));
  NetDeviceContainer devices2 = staDevice2;

  // setup ap.
  wifiMac.SetType ("ns3::ApWifiMac",
                   "Ssid", SsidValue (ssid));
  NetDeviceContainer apDevice = wifi.Install (wifiPhy, wifiMac, c.Get (0));
  devices.Add (apDevice);  


  // Note that with FixedRssLossModel, the positions below are not 
  // used for received signal strength. 
  MobilityHelper mobility;
  Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator> ();
  positionAlloc->Add (Vector (0.0, 0.0, 0.0));
  positionAlloc->Add (Vector (5.0, 0.0, 0.0));
  positionAlloc->Add (Vector (0.0, 50.0, 0.0));
  mobility.SetPositionAllocator (positionAlloc);
  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
  mobility.Install (c);

  InternetStackHelper internet;
  internet.Install (c);

  Ipv4AddressHelper ipv4;
  NS_LOG_INFO ("Assign IP Addresses.");
  ipv4.SetBase ("10.1.1.0", "255.255.255.0");
  Ipv4InterfaceContainer iap = ipv4.Assign (apDevice);
  Ipv4InterfaceContainer i = ipv4.Assign (devices);
  Ipv4InterfaceContainer i2 = ipv4.Assign (devices2);


//change from here. up there is working
//-------------------------------------------------------
  uint16_t port1 = 8000; // Need different port numbers to ensure there is no conflict
  uint16_t port2 = 8001; // Need different port numbers to ensure there is no conflict
  UdpServerHelper server1 (port1);
  UdpServerHelper server2 (port2);
  ApplicationContainer apps;
  ApplicationContainer apps2;
  apps = server1.Install (c.Get (0));
  apps2 = server2.Install (c.Get (0));

  apps.Start (Seconds (1.0));
  apps.Stop (Seconds (10.0));

  apps2.Start (Seconds (1.0));
  apps2.Stop (Seconds (10.0));


//
// Create one UdpClient application to send UDP datagrams from node zero to
// node one.
//
  //client1
  uint32_t MaxPacketSize = 1024;
  Time interPacketInterval = Seconds (interval);
  uint32_t maxPacketCount = 32000000;

  UdpClientHelper client1 (iap.GetAddress (0), port1);
  UdpClientHelper client2 (iap.GetAddress (0), port2);

  client1.SetAttribute ("MaxPackets", UintegerValue (maxPacketCount));
  client1.SetAttribute ("Interval", TimeValue (interPacketInterval));
  client1.SetAttribute ("PacketSize", UintegerValue (MaxPacketSize));

  client2.SetAttribute ("MaxPackets", UintegerValue (maxPacketCount));
  client2.SetAttribute ("Interval", TimeValue (interPacketInterval));
  client2.SetAttribute ("PacketSize", UintegerValue (MaxPacketSize));

  apps = client1.Install (c.Get (1));

  apps.Start (Seconds (2.0));
  apps.Stop (Seconds (10.0));

  apps2 = client2.Install (c.Get (2));

  apps2.Start (Seconds (2.0));
  apps2.Stop (Seconds (10.0));



  FlowMonitorHelper flowmon;
  Ptr<FlowMonitor> monitor = flowmon.InstallAll();
  
    wifiPhy.EnablePcap ("wifi-simple-infra", apDevice);

//
// Now, do the actual simulation.
//
  NS_LOG_INFO ("Run Simulation.");
  Simulator::Stop (Seconds(11.0));
  Simulator::Run ();

  monitor->CheckForLostPackets ();

  Ptr<Ipv4FlowClassifier> classifier = DynamicCast<Ipv4FlowClassifier> (flowmon.GetClassifier ());
  std::map<FlowId, FlowMonitor::FlowStats> stats = monitor->GetFlowStats ();
  for (std::map<FlowId, FlowMonitor::FlowStats>::const_iterator i = stats.begin (); i != stats.end (); ++i)
    {
	  Ipv4FlowClassifier::FiveTuple t = classifier->FindFlow (i->first);
     // if ((t.sourceAddress=="10.1.1.1" && t.destinationAddress == "10.1.1.2"))
      //{
          std::cout << "Flow " << i->first  << " (" << t.sourceAddress << " -> " << t.destinationAddress << ")\n";
          std::cout << "  Tx Bytes:   " << i->second.txBytes << "\n";
          std::cout << "  Rx Bytes:   " << i->second.rxBytes << "\n";
      	  std::cout << "  Throughput: " << i->second.rxBytes * 8.0 / (i->second.timeLastRxPacket.GetSeconds() - i->second.timeFirstTxPacket.GetSeconds())/1024/1024  << " Mbps\n";
      //}
     }



  //monitor->SerializeToXmlFile("lab-1.flowmon", true, true);

  Simulator::Destroy ();
  NS_LOG_INFO ("Done.");
}