How do I Code Ns3
We can proceed to code Ns3 for that we have to follow some guidelines to get succeed in that process of coding. Now, let’s get into the step by step process of Ns3 coding.
As the first process, we have to create the Ns3 main file and store the C++ code file in the scratch folder along with the extension of .cc.
For your reference, we have highlighted some codes based on CC in the following with its specifications.
- C++ code for packet receive from neighbor nodes
TypeId tid = TypeId::LookupByName ("ns3::UdpSocketFactory");
Ptr sink = Socket::CreateSocket (node, tid);
InetSocketAddress local = InetSocketAddress (Ipv4Address::GetAny (), port);
sink->Bind (local);
sink->SetRecvCallback (MakeCallback (&Experiment::ReceivePacket, this));
- C++ code for OLSR based routing configurations
OlsrHelper olsr;
Ipv4StaticRoutingHelper staticRouting;
Ipv4ListRoutingHelper list;
if (enableRouting)
{
list.Add (staticRouting, 0);
list.Add (olsr, 10);
}
InternetStackHelper internet;
if (enableRouting)
{
internet.SetRoutingHelper (list); // has effect on the next Install ()
}
- C++ code for randomly select the source and destination
uint32_t totalNodes = c.GetN ();
Ptr uvSrc = CreateObject ();
uvSrc->SetAttribute ("Min", DoubleValue (0));
uvSrc->SetAttribute ("Max", DoubleValue (totalNodes/2 -1));
Ptr uvDest = CreateObject ();
uvDest->SetAttribute ("Min", DoubleValue (totalNodes/2));
uvDest->SetAttribute ("Max", DoubleValue (totalNodes));
for (uint32_t i=0; i < totalNodes/3; i++)
{
ApplicationSetup (c.Get
(uvSrc->GetInteger ()), c.Get
(uvDest->GetInteger ()), 0, totalTime);
}
- C++ code for include header files
#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/applications-module.h"
#include "ns3/mobility-module.h"
#include "ns3/stats-module.h"
#include "ns3/random-variable-stream.h"
#include "ns3/wifi-module.h"
#include "ns3/internet-module.h"
#include "ns3/flow-monitor-helper.h"
#include "ns3/olsr-helper.h"
#include "ns3/ipv4-static-routing-helper.h"
#include "ns3/ipv4-list-routing-helper.h"
Then, we have to implement the main code through the utilization of the below mentioned commands.
cd /home/research/ns-allinone-3.28/ns-3.28
sudo ./waf –run CCMain –vis
Additionally, we have highlighted the result that is conquered through the implementation of the main file.
Throw away all your hesitation and reach us to clarify your issues based on ns3 coding process.
Click Here to watch our latest output video using NS3 simulator 
Click Here to watch our latest projects screenshots using NS3 simulator