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How to Implement V2X Communication in OMNeT++

To implement the Vehicle-to-Everything (V2X) communication in OMNeT++ has numerous steps that contains to setup a emulated scenarios then describe the network and vehicle models then execute the communication protocols and compile the emulation. The V2X communication has includes the Vehicle-to-Vehicle (V2V), Vehicle-to-Infrastructure (V2I), Vehicle-to-Network (V2N), and Vehicle-to-Pedestrian (V2P) communications. Here are the brief procedures on implement the V2X communication in OMNeT++ using the INET framework and Veins (Vehicles in Network Simulation).

Step-by-step Implementation:

Step 1: Install OMNeT++, INET Framework, and Veins

  1. Download OMNeT++:
    • Install and download the OMNet++ latest version.
  2. Install OMNeT++:
    • Based on the operating system install and follow the instruction of OMNet++.
  3. Download and Install INET Framework:
    • The INET framework offers models for internet protocols and is usually used with OMNeT++.
    • We need to download it from the INET website.
  4. Download and Install Veins:
    • Veins are an open-source framework for vehicular network simulations.
    • We need to install it from the Veins website.

Step 2: Set Up Your Project

  1. Create a New OMNeT++ Project:
    • Open the OMNeT++ IDE.
    • Go to File -> New -> OMNeT++ Project.
    • Enter a project name and select the appropriate options.
  2. Set Up Directory Structure:
    • Make sure project has the essential folders, like src for source files and simulations for NED files and configuration.

Step 3: Define Network Models Using NED

  1. Create NED Files:
    • In the src directory, create a new NED file (e.g., V2XNetwork.ned).
    • Define the network topology in the NED file. Here’s a simple example:

package v2x;

import inet.node.inet.StandardHost;

import inet.mobility.single.TraCIMobility;

import inet.networklayer.configurator.ipv4.Ipv4NetworkConfigurator;

import inet.physicallayer.ieee80211.packetlevel.Ieee80211ScalarRadioMedium;

import veins.node.car.TraCIDemo11p;

import veins.base.modules.BaseApplLayer;

import veins_inet.modules.inet.TraCIMobility;

import inet.node.inet.NetworkNode;

network V2XNetwork

{

parameters:

int numVehicles = default(10);

int numRSUs = default(3);

types:

channel radioChannel extends Ieee80211ScalarRadioMedium {}

submodules:

configurator: Ipv4NetworkConfigurator {

@display(“p=100,100”);

}

rsu[numRSUs]: NetworkNode {

@display(“p=200+100*i,200”);

@labels(“rsu”);

}

vehicle[numVehicles]: TraCIDemo11p {

@display(“p=200+100*i,400”);

@labels(“car”);

}

radioMedium: radioChannel {

@display(“p=400,100”);

}

connections allowunconnected:

for i=0..numRSUs-1 {

for j=0..numVehicles-1 {

rsu[i].wlan++ <–> radioMedium <–> vehicle[j].wlan++;

}

}

}

Step 4: Implement V2X Communication Logic in C++

  1. Create C++ Modules:
    • In the src directory, generate a new C++ class (e.g., V2XVehicle.cc).
    • Embrace necessary OMNeT++ headers and describe your module:

#include <omnetpp.h>

#include “veins/base/modules/BaseApplLayer.h”

using namespace omnetpp;

using namespace veins;

class V2XVehicle : public BaseApplLayer

{

protected:

virtual void initialize(int stage) override;

virtual void handleSelfMsg(cMessage *msg) override;

virtual void handlePositionUpdate(cObject *obj) override;

};

Define_Module(V2XVehicle);

void V2XVehicle::initialize(int stage)

{

BaseApplLayer::initialize(stage);

if (stage == 0) {

// Initialization code

scheduleAt(simTime() + uniform(1, 10), new cMessage(“beacon”));

}

}

void V2XVehicle::handleSelfMsg(cMessage *msg)

{

if (strcmp(msg->getName(), “beacon”) == 0) {

// Send beacon message

EV << “Sending beacon message” << endl;

cPacket *beacon = new cPacket(“Beacon”);

send(beacon, “lowerLayerOut”);

scheduleAt(simTime() + uniform(1, 10), msg);

}

}

void V2XVehicle::handlePositionUpdate(cObject *obj)

{

BaseApplLayer::handlePositionUpdate(obj);

// Handle position update, e.g., for handover or collision avoidance

}

  1. Modify NED to Use C++ Modules:
    • Update r NED file to use custom V2X vehicle module:

network V2XNetwork

{

parameters:

int numVehicles = default(10);

int numRSUs = default(3);

types:

channel radioChannel extends Ieee80211ScalarRadioMedium {}

submodules:

configurator: Ipv4NetworkConfigurator {

@display(“p=100,100”);

}

rsu[numRSUs]: NetworkNode {

@display(“p=200+100*i,200”);

@labels(“rsu”);

}

vehicle[numVehicles]: V2XVehicle {

@display(“p=200+100*i,400”);

@labels(“car”);

}

radioMedium: radioChannel {

@display(“p=400,100”);

}

connections allowunconnected:

for i=0..numRSUs-1 {

for j=0..numVehicles-1 {

rsu[i].wlan++ <–> radioMedium <–> vehicle[j].wlan++;

}

}

}

Step 5: Configure Simulation Parameters

  1. Create omnetpp.ini:
    • In the simulations directory, create an omnetpp.ini file.
    • Describe simulation parameters,like the duration and network parameters:

network = V2XNetwork

sim-time-limit = 100s

**.beaconInterval = 1s

**.app[0].**.nic.typename = “Ieee80211pNic”

**.rsu*.**.nic.typename = “Ieee80211pNic”

Step 6: Integrate with SUMO (Optional)

  1. Install SUMO:
    • Download and install SUMO (Simulation of Urban MObility).
  2. Configure SUMO for OMNeT++:
    • Follow Veins instructions to set up SUMO with OMNeT++.
    • Make sure that vehicle mobility is controlled by SUMO for realistic vehicular movements.

Step 7: Build and Run the Simulation

  1. Build the Project:
    • In the OMNeT++ IDE, right-click on your project and select Build Project.
  2. Run the Simulation:
    • Go to Run -> Run Configurations.
    • Set up a new run configuration for your project and run the simulation.

Step 8: Analyse Results

  1. View Simulation Results:
    • After the simulation completes, use OMNeT++’s tools to evaluate the results.
    • Open the ANF (Analysis Framework) to visualize and interpret the data.

In the above script, we all get understand and knowledge about how to implement and execute the Vehicle-to-Everything in OMNeT++ simulator tool. We will describe how the Vehicle-to-Everything is simulating in other circumstance. If you are in search of expert simulation results, we invite you to explore ns3simulation.com for exceptional outcomes. Our developers specialize in the implementation and comparative analysis of V2X Communication in OMNeT++, tailored to meet the needs of your projects.

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