Steps to implement V2X communication in ns3

To implement V2X communication in ns-3 that provides the necessary modules to simulate such scenarios, especially through the Wi-Fi module, LTE module, and Wave (Wireless Access in Vehicular Environments) module. The following steps guide to implement V2X communication in ns-3

Step-by-Step Guide to Implement V2X Communication in ns-3

Install ns-3:
- Ensure ns-3 is installed. You can follow the installation instructions provided in previous responses.
Create a Simulation Script:
- Create a new script file, e.g., v2x-simulation.cc.
Include Necessary Headers:

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

#include “ns3/point-to-point-module.h”

#include “ns3/mobility-module.h”

#include “ns3/wave-module.h”

#include “ns3/applications-module.h”

Define the Main Function:

using namespace ns3;

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

{

LogComponentEnable (“UdpEchoClientApplication”, LOG_LEVEL_INFO);

LogComponentEnable (“UdpEchoServerApplication”, LOG_LEVEL_INFO);

Set Up the Network Topology:

Create nodes for vehicles and infrastructure:

NodeContainer vehicles;

vehicles.Create (2); // Two vehicles for V2V communication

NodeContainer rsu; // Road Side Unit for V2I communication

rsu.Create (1);

Configure Wi-Fi/WAVE for V2X Communication:

Configure the Wi-Fi or Wave (DSRC) devices

YansWifiChannelHelper waveChannel = YansWifiChannelHelper::Default ();

YansWifiPhyHelper wavePhy = YansWifiPhyHelper::Default ();

wavePhy.SetChannel (waveChannel.Create ());

QosWaveMacHelper waveMac = QosWaveMacHelper::Default ();

WaveHelper waveHelper = WaveHelper::Default ();

NetDeviceContainer waveDevices = waveHelper.Install (wavePhy, waveMac, vehicles);

NetDeviceContainer rsuDevices = waveHelper.Install (wavePhy, waveMac, rsu);

Install Internet Stack:

Install the internet stack on all nodes:

InternetStackHelper internet;

internet.Install (vehicles);

internet.Install (rsu);

Assign IP Addresses:

Assign IP addresses to the network devices:

Ipv4AddressHelper address;

address.SetBase (“10.1.1.0”, “255.255.255.0”);

Ipv4InterfaceContainer vehicleInterfaces = address.Assign (waveDevices);

Ipv4InterfaceContainer rsuInterfaces = address.Assign (rsuDevices);

Configure Mobility:

Set up mobility models for vehicles and the RSU:

MobilityHelper mobility;

Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator> ();

positionAlloc->Add (Vector (0.0, 0.0, 0.0)); // Vehicle 1

positionAlloc->Add (Vector (20.0, 0.0, 0.0)); // Vehicle 2

positionAlloc->Add (Vector (50.0, 0.0, 0.0)); // RSU

mobility.SetPositionAllocator (positionAlloc);

mobility.SetMobilityModel (“ns3::ConstantPositionMobilityModel”);

mobility.Install (vehicles);

mobility.Install (rsu);

Install Applications:

Set up a UDP echo server on the RSU and clients on the vehicles

UdpEchoServerHelper echoServer (9);

ApplicationContainer serverApps = echoServer.Install (rsu.Get (0));

serverApps.Start (Seconds (1.0));

serverApps.Stop (Seconds (10.0));

UdpEchoClientHelper echoClient (rsuInterfaces.GetAddress (0), 9);

echoClient.SetAttribute (“MaxPackets”, UintegerValue (1));

echoClient.SetAttribute (“Interval”, TimeValue (Seconds (1.0)));

echoClient.SetAttribute (“PacketSize”, UintegerValue (1024));

ApplicationContainer clientApps = echoClient.Install (vehicles.Get (0));

clientApps.Start (Seconds (2.0));

clientApps.Stop (Seconds (10.0));

Run the Simulation:

Define the simulation stop time and start the simulator

Simulator::Run ();

Simulator::Destroy ();

return 0;

Example Complete Script (v2x-simulation.cc):