ad hoc network simulation

[Shagor Chowdhury]

Hello Users,
I am trying to implement a mobile ad hoc network with 100 nodes and
using CSMA/CA protocol. But the trace files and flow monitor do not
show any activity at all. They are totally blank. I need some urgently
about that. I have the following code:

#include <fstream>
#include <iostream>
#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/internet-module.h"
#include "ns3/mobility-module.h"
#include "ns3/wifi-module.h"
#include "ns3/csma-helper.h"
#include "ns3/applications-module.h"
#include "ns3/flow-monitor-helper.h"
#include "ns3/ipv4-global-routing-helper.h"

using namespace ns3;
NS_LOG_COMPONENT_DEFINE ("first_broadcast");


int
main (int argc, char *argv[])
{

int numNodes = 100;
std::string phyMode ("DsssRate11Mbps");
double txp = 7.5;
int nodeSpeed = 20;
double TotalTime = 20.0;
std::string rate ("2048bps");

NodeContainer manetNodes;
manetNodes.Create (numNodes);

//NodeContainer nCsma;
//nCsma.Add (manetNodes.Get (1));
//nCsma.Create (mCsma);

Config::SetDefault
("ns3::WifiRemoteStationManager::NonUnicastMode",StringValue
(phyMode));

WifiHelper manetWifi;
manetWifi.SetStandard (WIFI_PHY_STANDARD_80211b);

YansWifiPhyHelper wifiPhy = YansWifiPhyHelper::Default ();
YansWifiChannelHelper wifiChannel;
wifiChannel.SetPropagationDelay
("ns3::ConstantSpeedPropagationDelayModel");
wifiChannel.AddPropagationLoss ("ns3::FriisPropagationLossModel");
wifiPhy.SetChannel (wifiChannel.Create ());


NqosWifiMacHelper wifiMac = NqosWifiMacHelper::Default ();
manetWifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",
"DataMode",StringValue (phyMode),
"ControlMode",StringValue (phyMode));

wifiPhy.Set ("TxPowerStart",DoubleValue (txp));
wifiPhy.Set ("TxPowerEnd", DoubleValue (txp));

wifiMac.SetType ("ns3::AdhocWifiMac");
NetDeviceContainer manetDevices = manetWifi.Install (wifiPhy,
wifiMac, manetNodes);
CsmaHelper csma;
csma.SetChannelAttribute ("DataRate", StringValue ("100Mbps"));
csma.SetChannelAttribute ("Delay", TimeValue (NanoSeconds (6560)));

//csma.SetDeviceAttribute ("EncapsulationMode", StringValue ("Dix"));
//csma.SetDeviceAttribute ("FrameSize", UintegerValue (2000));


NetDeviceContainer csmaDevices = csma.Install(manetNodes);
MobilityHelper mobilityManet;
Ipv4ListRoutingHelper list;

InternetStackHelper internet;
internet.SetRoutingHelper (list);
internet.Install (manetNodes);

NS_LOG_INFO ("assigning ip address");

Ipv4AddressHelper addressManet;
addressManet.SetBase ("10.1.1.0", "255.255.255.0");
Ipv4InterfaceContainer manetInterfaces;
manetInterfaces = addressManet.Assign (manetDevices);

ObjectFactory pos;
pos.SetTypeId ("ns3::RandomRectanglePositionAllocator");
pos.Set ("X", RandomVariableValue (UniformVariable (0.0, 50.0)));
pos.Set ("Y", RandomVariableValue (UniformVariable (0.0, 50.0)));

Ptr<PositionAllocator> taPositionAlloc = pos.Create ()-
>GetObject<PositionAllocator> ();
mobilityManet.SetMobilityModel ("ns3::RandomWaypointMobilityModel",
"Speed", RandomVariableValue
(UniformVariable (0.0, nodeSpeed)),
"Pause", RandomVariableValue
(ConstantVariable (0)),
"PositionAllocator", PointerValue
(taPositionAlloc));
mobilityManet.SetPositionAllocator (taPositionAlloc);
mobilityManet.Install (manetNodes);

Config::SetDefault ("ns3::OnOffApplication::PacketSize",StringValue
("64"));
Config::SetDefault ("ns3::OnOffApplication::DataRate", StringValue
(rate));

uint32_t port = 100;

OnOffHelper onoff1 ("ns3::UdpSocketFactory",Address ());
onoff1.SetAttribute ("OnTime", RandomVariableValue
(ConstantVariable (1)));
onoff1.SetAttribute ("OffTime", RandomVariableValue
(ConstantVariable (0)));

for (int i = 0; i <= 9; i++)
{

AddressValue remoteAddress (InetSocketAddress
(manetInterfaces.GetAddress (i), port));
onoff1.SetAttribute ("Remote", remoteAddress);

UniformVariable var;
ApplicationContainer temp = onoff1.Install (manetNodes.Get (i));
temp.Start (Seconds (var.GetValue (0.1,1.0)));
temp.Stop (Seconds (TotalTime));
}



AsciiTraceHelper ascii;
Ptr<OutputStreamWrapper> osw = ascii.CreateFileStream
("myfirstmanet.tr");
wifiPhy.EnableAsciiAll (osw);
std::ofstream os;
MobilityHelper::EnableAsciiAll (os);

FlowMonitorHelper flowmonHelper;
Ptr<FlowMonitor> flowmon = flowmonHelper.InstallAll();
flowmon-> SetAttribute("DelayBinWidth", DoubleValue (0.001));
flowmon-> SetAttribute("JitterBinWidth", DoubleValue (0.001));
flowmon-> SetAttribute("PacketSizeBinWidth", DoubleValue(20));

Ipv4GlobalRoutingHelper::PopulateRoutingTables ();
wifiPhy.EnablePcapAll ("manet");
csma.EnablePcap ("manet", true, true);

NS_LOG_INFO ("Run Simulation.");


Simulator::Stop (Seconds (TotalTime));
Simulator::Run ();

flowmon->SerializeToXmlFile (("myfirstmanet.flowmon"), false, false);
Simulator::Destroy ();
}

Can anyone suggest what I am doing wrong?
Thank you,
Shagor.

[Laurent R.]

Hi,
Defining the desired trace level for your log component should help.
e.g. at the beginning of your script in your main (), you may want to insert something like:

LogComponentEnable ("first_broadcast", LOG_LEVEL_INFO);

(or whatever log level you need)
Regards
Laurent

[Shagor Chowdhury]

Hey,
I tried it but it still gives me blank trace files and flow monitor
files. In the terminal it gives me the following message:
"assigning ip address
Run Simulation."
Here is the code again;

#include <fstream>
#include <iostream>
#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/internet-module.h"
#include "ns3/mobility-module.h"
#include "ns3/wifi-module.h"
#include "ns3/csma-helper.h"
#include "ns3/applications-module.h"
#include "ns3/flow-monitor-helper.h"
#include "ns3/ipv4-global-routing-helper.h"

using namespace ns3;
NS_LOG_COMPONENT_DEFINE ("first_broadcast");


int
main (int argc, char *argv[])
{

int numNodes = 100;
std::string phyMode ("DsssRate11Mbps");
double txp = 7.5;
int nodeSpeed = 20;
double TotalTime = 20.0;
std::string rate ("2048bps");

LogComponentEnable ("first_broadcast", LOG_LEVEL_ALL);

pos.Set ("X", RandomVariableValue (UniformVariable (0.0, 500.0)));
pos.Set ("Y", RandomVariableValue (UniformVariable (0.0, 500.0)));

Thanks Shagor.



On Sep 30, 11:12 am, "Laurent R." <laurent.reynaud.3x1...@gmail.com>
wrote:

[Laurent R.]

Ok.
1- I tried your script, but I replaced your AdHocWifiMac by a ApWifiMac configuration (if needed, see "second.cc" in the example scripts for the relevant configuration)
Then, it works correctly and the .pcap / .tr traces are correctly filled.

2- Alternatively I kept your default WiFi configuration, but also used a routing protocol in your script.
E.g. with OLSR (but any routing protocol will do),

(...)
#include "ns3/olsr-helper.h"
(...)
OlsrHelper olsr;
Ipv4StaticRoutingHelper staticRouting;
Ipv4ListRoutingHelper list;
list.Add (staticRouting, 0);
list.Add (olsr, 10);
(...)

Also works ok.
I suggest you choose either way, depending on your needs.
Regards

[Shagor Chowdhury]

Thank you very much for the help. That worked for me. So my next task
is to setup a retransmission probability for each received packet. For
example, each time a node receives a packet it will retransmit with a
probility of 0.5. DO you know any examples or any way I can achieve
that?
Thank again for your suggestion. I used the olsr routing protocol.
Shagor.

On Oct 1, 6:40 am, "Laurent R." <laurent.reynaud.3x1...@gmail.com>
wrote:

[gaurav garg]

Dear Sir

I try to execute the following above code ie.

#include <fstream>
#include <iostream>
#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/internet-module.h"
#include "ns3/mobility-module.h"
#include "ns3/wifi-module.h"
#include "ns3/csma-helper.h"
#include "ns3/applications-module.h"
#include "ns3/flow-monitor-helper.h"
#include "ns3/ipv4-global-routing-helper.h"

#include "ns3/mobility-helper.h"

  wifiMac.SetType ("ns3::ApWifiMac");

 Config::SetDefault  ("ns3::OnOffApplication::PacketSize",StringValue("64"));

  Config::SetDefault ("ns3::OnOffApplication::DataRate",StringValue(rate));

 uint32_t port = 100;

  OnOffHelper onoff1 ("ns3::UdpSocketFactory",Address ());

  onoff1.SetAttribute ("OnTime", RandomVariableValue(ConstantVariable  (1)));
  onoff1.SetAttribute ("OffTime", RandomVariableValue(ConstantVariable (0)));

  for (int i = 0; i <= 9; i++)
    {

      AddressValue remoteAddress (InetSocketAddress
(manetInterfaces.GetAddress (i), port));
      onoff1.SetAttribute ("Remote", remoteAddress);

      UniformVariable var;
      ApplicationContainer temp = onoff1.Install (manetNodes.Get (i));
      temp.Start (Seconds (var.GetValue (0.1,1.0)));
      temp.Stop (Seconds (TotalTime));
    }


 AsciiTraceHelper ascii;

Ptr<OutputStreamWrapper> osw = ascii.CreateFileStream("myfirstmanet.tr");

  wifiPhy.EnableAsciiAll (osw);
  std::ofstream os;
  MobilityHelper::EnableAsciiAll(os);

  FlowMonitorHelper flowmonHelper;
 Ptr<FlowMonitor> flowmon = flowmonHelper.InstallAll();
 flowmon-> SetAttribute("DelayBinWidth", DoubleValue (0.001));
 flowmon-> SetAttribute("JitterBinWidth", DoubleValue (0.001));
 flowmon-> SetAttribute("PacketSizeBinWidth", DoubleValue(20));

Ipv4GlobalRoutingHelper::PopulateRoutingTables ();
wifiPhy.EnablePcapAll ("manet");
  csma.EnablePcap ("manet", true, true);

  NS_LOG_INFO ("Run Simulation.");


  Simulator::Stop (Seconds (TotalTime));
  Simulator::Run ();

flowmon->SerializeToXmlFile (("myfirstmanet.flowmon"), false, false);
  Simulator::Destroy ();
}

but it generates the following error::
Waf: Entering directory `/home/monu/ns-allinone-3.16/ns-3.16/build'
[645/691] cxx: adhoc.cc -> ../build/scratch/adhoc.cc.4.o
../scratch/adhoc.cc: In function ‘int main(int, char**)’:
../scratch/adhoc.cc:131:36: error: no matching function for call to ‘ns3::MobilityHelper::EnableAsciiAll(std::ofstream&)’
../scratch/adhoc.cc:131:36: note: candidate is:
In file included from ./ns3/mobility-module.h:17:0,
                 from ../scratch/adhoc.cc:7:
./ns3/mobility-helper.h:249:15: note: static void ns3::MobilityHelper::EnableAsciiAll(ns3::Ptr<ns3::OutputStreamWrapper>)
./ns3/mobility-helper.h:249:15: note:   no known conversion for argument 1 from ‘std::ofstream {aka std::basic_ofstream<char>}’ to ‘ns3::Ptr<ns3::OutputStreamWrapper>’
Waf: Leaving directory `/home/monu/ns-allinone-3.16/ns-3.16/build'
Build failed


Plz help me to get out of it!!