How to Implement UAS based VANET in OMNeT++

To implement an Unmanned Aerial System (UAS) based Vehicular Ad hoc Network (VANET) in OMNeT++, we needs to embrace to setup the network where the vehicles and UAVs communicate with each other to enable exchange of information and improve the network connectivity. The INET Framework in OMNeT++ offers tools to design like networks. The given below are the procedures on how to implement the UAS based VANET in OMNeT++:

Step-by-Step Implementation

Install OMNeT++ and INET Framework

Make sure we have OMNeT++ and the INET Framework installed.

Create a New OMNeT++ Project

Open OMNeT++ IDE: Start the OMNeT++ IDE.
Create a New Project: Go to File -> New -> OMNeT++ Project. Name your project (e.g., UASVANETSimulation).

Import INET into Your Project

Import INET: Right-click on project in the Project Explorer, choice Properties. Go to Project References and check the INET project.
Copy INET Examples: Copy example configurations from the INET framework to project for reference.

Define the Network Topology

Produce a new NED file to outline network topology that contains vehicles and UAVs.

Example: UAS-based VANET Topology (UASVANETNetwork.ned)

package uasvanet;

import inet.node.inet.StandardHost;

import inet.node.inet.WirelessHost;

network UASVANETNetwork

{

parameters:

@display(“bgb=800,400”);

submodules:

vehicle1: WirelessHost {

@display(“p=100,300”);

}

vehicle2: WirelessHost {

@display(“p=300,300”);

}

vehicle3: WirelessHost {

@display(“p=500,300”);

}

uav1: WirelessHost {

@display(“p=200,100”);

}

uav2: WirelessHost {

@display(“p=400,100”);

}

In this instance:

vehicle1, vehicle2, and vehicle3 are vehicles equipped with wireless communication capabilities.
uav1 and uav2 are UAVs that can assist in communication.

Configure the Simulation

Create an OMNeT++ initialization file to configure the performance metrics of the simulation.

Example: Configuration File (omnetpp.ini)

network = uasvanet.UASVANETNetwork

sim-time-limit = 100s

# Visualization

*.visualizer.canvasVisualizer.displayBackground = true

*.visualizer.canvasVisualizer.displayGrid = true

# Host Configuration

*.vehicle*.numApps = 1

*.vehicle*.app[0].typename = “UdpBasicApp”

*.vehicle*.app[0].destAddresses = “uav1 uav2”

*.vehicle*.app[0].destPort = 5000

*.vehicle*.app[0].messageLength = 1024B

*.vehicle*.app[0].sendInterval = 1s

*.uav*.numApps = 1

*.uav*.app[0].typename = “UdpSink”

*.uav*.app[0].localPort = 5000

# UDP Configuration

*.vehicle*.hasUdp = true

*.uav*.hasUdp = true

# Wireless Configuration

*.vehicle*.wlan[0].typename = “AdhocHost”

*.uav*.wlan[0].typename = “AdhocHost”

# IP Address Configuration

*.vehicle1.ipv4.config = xmldoc(“vehicle1.xml”)

*.vehicle2.ipv4.config = xmldoc(“vehicle2.xml”)

*.vehicle3.ipv4.config = xmldoc(“vehicle3.xml”)

*.uav1.ipv4.config = xmldoc(“uav1.xml”)

*.uav2.ipv4.config = xmldoc(“uav2.xml”)

Create IP Address Configuration Files

Create XML files to describe the IP address configuration for each vehicle and UAV.

Example: IP Configuration File for vehicle1 (vehicle1.xml)

</interface>

<route>

</route>

</routing>

</config>

Example: IP Configuration File for vehicle2 (vehicle2.xml)

</interface>

<route>

</route>

</routing>

</config>

Example: IP Configuration File for vehicle3 (vehicle3.xml)

</interface>

<route>

</route>

</routing>

</config>

Example: IP Configuration File for uav1 (uav1.xml)

</interface>

</config>

Example: IP Configuration File for uav2 (uav2.xml)

</interface>

</config>

Implement Communication Logic

To emulate the communication among vehicles and UAVs and we need to execute the logic for data exchange.

Example: Simple Communication Logic (Pseudo-Code)

class VehicleApp : public cSimpleModule

{

protected:

virtual void initialize() override;

virtual void handleMessage(cMessage *msg) override;

private:

void sendData();

};

void VehicleApp::initialize() {

// Initialization code

scheduleAt(simTime() + 1, new cMessage(“sendData”));

}

void VehicleApp::handleMessage(cMessage *msg) {

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

sendData();

scheduleAt(simTime() + 1, msg);

} else {

// Handle other messages

}

void VehicleApp::sendData() {

// Logic to send data to UAVs

}

Run the Simulation

Build the Project: Right-click on your project and choose Build Project.
Run the Simulation: Click on the green play button in the OMNeT++ IDE to start the simulation.

As we discussed earlier about how to communicate and exchange the information in other vehicle scenarios and also we learn how to optimize the network connectivity in UAS based VANET circumstances. We intend to expand on how the Unmanned Aerial System (UAS) based Vehicular Ad hoc Network is performed in other simulation circumstance.

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