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// ns-3
#include "ns3/log.h"
#include "ns3/uinteger.h"
#include "ns3/boolean.h"
#include "ns3/string.h"
#include "ns3/command-line.h"
#include "ns3/internet-stack-helper.h"
#include "ns3/internet-stack-helper.h"
#include "ns3/ipv4-address-helper.h"
#include "ns3/on-off-helper.h"
#include "ns3/packet-sink-helper.h"
#include "ns3/udp-echo-helper.h"
#include "ns3/constant-position-mobility-model.h"
#include "ns3/propagation-loss-model.h"
#include "ns3/propagation-delay-model.h"
#include "ns3/yans-wifi-channel.h"
#include "ns3/yans-wifi-helper.h"
// C++ library
#include <iostream>
#include <utility> // To use std::pair
using namespace ns3;
NS_LOG_COMPONENT_DEFINE ("wifi-tcp");
typedef std::pair<NodeContainer,NetDeviceContainer> Cell;
Cell createCell(uint32_t nbSensors){
// Create sensors
NodeContainer sensors;
sensors.Create(nbSensors);
// Place nodes somehow, this is required by every wireless simulation
for (uint8_t i = 0; i < nbSensors; ++i)
{
sensors.Get (i)->AggregateObject (CreateObject<ConstantPositionMobilityModel> ());
}
// Create propagation loss matrix
Ptr<MatrixPropagationLossModel> lossModel = CreateObject<MatrixPropagationLossModel> ();
lossModel->SetDefaultLoss (200); // set default loss to 200 dB (no link)
lossModel->SetLoss (sensors.Get (0)->GetObject<MobilityModel> (), sensors.Get (1)->GetObject<MobilityModel> (), 50); // set symmetric loss 0 <-> 1 to 50 dB
lossModel->SetLoss (sensors.Get (2)->GetObject<MobilityModel> (), sensors.Get (1)->GetObject<MobilityModel> (), 50); // set symmetric loss 2 <-> 1 to 50 dB
// 4. Create & setup wifi channel
Ptr<YansWifiChannel> wifiChannel = CreateObject <YansWifiChannel> ();
wifiChannel->SetPropagationLossModel (lossModel);
wifiChannel->SetPropagationDelayModel (CreateObject <ConstantSpeedPropagationDelayModel> ());
// Install wireless devices
WifiHelper wifi;
wifi.SetStandard (WIFI_PHY_STANDARD_80211b);
wifi.SetRemoteStationManager ("ns3::ArfWifiManager");
YansWifiPhyHelper wifiPhy = YansWifiPhyHelper::Default ();
wifiPhy.SetChannel (wifiChannel);
WifiMacHelper wifiMac;
wifiMac.SetType ("ns3::AdhocWifiMac"); // use ad-hoc MAC
NetDeviceContainer devices = wifi.Install (wifiPhy, wifiMac, sensors);
return(std::make_pair(sensors,devices));
}
void applyScenarios(Cell cell){
NodeContainer sensors=cell.first;
NetDeviceContainer devices= cell.second;
// 6. Install TCP/IP stack & assign IP addresses
InternetStackHelper internet;
internet.Install (sensors);
Ipv4AddressHelper ipv4;
ipv4.SetBase ("10.0.0.0", "255.0.0.0");
ipv4.Assign (devices);
// Install applications: two CBR streams each saturating the channel
ApplicationContainer cbrApps;
uint16_t cbrPort = 12345;
OnOffHelper onOffHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address ("10.0.0.2"), cbrPort));
onOffHelper.SetAttribute ("PacketSize", UintegerValue (1400));
onOffHelper.SetAttribute ("OnTime", StringValue ("ns3::ConstantRandomVariable[Constant=1]"));
onOffHelper.SetAttribute ("OffTime", StringValue ("ns3::ConstantRandomVariable[Constant=0]"));
// flow 1: node 0 -> node 1
onOffHelper.SetAttribute ("DataRate", StringValue ("3000000bps"));
onOffHelper.SetAttribute ("StartTime", TimeValue (Seconds (1.000000)));
cbrApps.Add (onOffHelper.Install (sensors.Get (0)));
// flow 2: node 2 -> node 1
/** \internal
* The slightly different start times and data rates are a workaround
* for \bugid{388} and \bugid{912}
*/
onOffHelper.SetAttribute ("DataRate", StringValue ("3001100bps"));
onOffHelper.SetAttribute ("StartTime", TimeValue (Seconds (1.001)));
cbrApps.Add (onOffHelper.Install (sensors.Get (2)));
/** \internal
* We also use separate UDP applications that will send a single
* packet before the CBR flows start.
* This is a workaround for the lack of perfect ARP, see \bugid{187}
*/
uint16_t echoPort = 9;
UdpEchoClientHelper echoClientHelper (Ipv4Address ("10.0.0.2"), echoPort);
echoClientHelper.SetAttribute ("MaxPackets", UintegerValue (1));
echoClientHelper.SetAttribute ("Interval", TimeValue (Seconds (0.1)));
echoClientHelper.SetAttribute ("PacketSize", UintegerValue (10));
ApplicationContainer pingApps;
// again using different start times to workaround Bug 388 and Bug 912
echoClientHelper.SetAttribute ("StartTime", TimeValue (Seconds (0.001)));
pingApps.Add (echoClientHelper.Install (sensors.Get (0)));
echoClientHelper.SetAttribute ("StartTime", TimeValue (Seconds (0.006)));
pingApps.Add (echoClientHelper.Install (sensors.Get (2)));
PacketSinkHelper s("ns3::UdpSocketFactory",Address(InetSocketAddress (Ipv4Address::GetAny (), echoPort)));
ApplicationContainer as=s.Install(sensors.Get(1));
as.Start (Seconds (0));
as.Stop (Seconds (10.0));
}
int main(int argc, char* argv[]){
LogComponentEnable("UdpEchoClientApplication", LOG_LEVEL_INFO);
LogComponentEnable("PacketSink", LOG_LEVEL_INFO);
uint32_t sensingRate=1;
uint32_t sensorPktSize=150;
CommandLine cmd;
cmd.AddValue ("sensingRate", "Number of temperature measurement per second", sensingRate);
cmd.AddValue ("sensorPktSize", "Sensor measurements packet size", sensorPktSize);
cmd.Parse (argc, argv);
Cell c=createCell(3);
applyScenarios(c);
// Run simulators
Simulator::Stop (Seconds (10));
Simulator::Run ();
// Destroy
Simulator::Destroy ();
return(0);
}
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