How to Implement Ultra Reliable Low Latency Communication in OMNeT++

To Implement Ultra Reliable Low Latency Communication (URLLC) in OMNeT++, we need to encompass to design and emulate the network that selects the low latency and high reliability. This type of network is vital for application like autonomous vehicles, remote surgery, and industrial automation. The given below are the detailed procedures on how to implement the the URLLc in OMNeT++:

Step-by-Step Implementation:

Install OMNeT++ and INET Framework

Make certain 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 the project like URLLCNetworkSimulation.

Define the Network Topology

Generate a new NED file to describe the network topology that contains the devices and a central controller or gateway.

Example: URLLC Network Topology (URLLCNetwork.ned)

package urlcnetwork;

import inet.node.inet.StandardHost;

import inet.node.inet.Router;

import inet.node.inet.WirelessHost;

network URLLCNetwork

{

parameters:

@display(“bgb=800,400”);

submodules:

device1: WirelessHost {

@display(“p=100,300”);

}

device2: WirelessHost {

@display(“p=300,300”);

}

controller: Router {

@display(“p=200,200”);

}

gateway: StandardHost {

@display(“p=400,200”);

}

connections:

device1.wlan[0] <–> AdhocChannel <–> controller.wlan[0];

device2.wlan[0] <–> AdhocChannel <–> controller.wlan[0];

controller.ethg++ <–> Eth10M <–> gateway.ethg++;

}

Configure the Simulation

Generate an OMNeT++ initialization file to configure the parameters of the simulation, underlining low latency and high reliability settings.

Example: Configuration File (omnetpp.ini)

network = urlcnetwork.URLLCNetwork

sim-time-limit = 100s

# Visualization

*.visualizer.canvasVisualizer.displayBackground = true

*.visualizer.canvasVisualizer.displayGrid = true

# Device Configuration

*.device*.numApps = 1

*.device*.app[0].typename = “URLLCApp”

*.device*.app[0].destAddresses = “controller”

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

*.device*.app[0].messageLength = 256B

*.device*.app[0].sendInterval = 0.01s

# Controller Configuration

*.controller.numApps = 1

*.controller.app[0].typename = “ControllerApp”

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

# Gateway Configuration

*.gateway.numApps = 1

*.gateway.app[0].typename = “GatewayApp”

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

# UDP Configuration

*.device*.hasUdp = true

*.controller.hasUdp = true

*.gateway.hasUdp = true

# Wireless Configuration

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

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

# IP Address Configuration

*.device1.ipv4.config = xmldoc(“device1.xml”)

*.device2.ipv4.config = xmldoc(“device2.xml”)

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

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

# QoS Parameters

*.device*.wlan[0].bitrate = 54Mbps

*.device*.wlan[0].maxQueueLength = 10

*.controller.wlan[0].bitrate = 54Mbps

*.controller.wlan[0].maxQueueLength = 10

Create IP Address Configuration Files

Produce XML files to state the IP address configuration for each node.

Example: IP Configuration File for device1 (device1.xml)

</interface>

</config>

Example: IP Configuration File for device2 (device2.xml)

</interface>

</config>

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

</interface>

</config>

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

</interface>

</config>

Implement URLLC Application Logic

To simulate URLLC applications, we need to apply the logic for low-latency and reliable data transmission and reception.

Example: URLLC Device Application (Pseudo-Code)

#include <omnetpp.h>

using namespace omnetpp;

class URLLCApp : public cSimpleModule

{

protected:

virtual void initialize() override;

virtual void handleMessage(cMessage *msg) override;

private:

void sendData();

};

Define_Module(URLLCApp);

void URLLCApp::initialize() {

// Initialization code

scheduleAt(simTime() + uniform(0, 0.01), new cMessage(“sendData”));

}

void URLLCApp::handleMessage(cMessage *msg) {

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

sendData();

scheduleAt(simTime() + 0.01, msg);

} else {

// Handle other messages

}

void URLLCApp::sendData() {

// Logic to send URLLC data to the controller

cMessage *msg = new cMessage(“urlcData”);

send(msg, “out”);

}

Example: Controller Application (Pseudo-Code)

#include <omnetpp.h>

using namespace omnetpp;

class ControllerApp : public cSimpleModule

{

protected:

virtual void initialize() override;

virtual void handleMessage(cMessage *msg) override;

private:

void processData(cMessage *msg);

};

Define_Module(ControllerApp);

void ControllerApp::initialize() {

// Initialization code

}

void ControllerApp::handleMessage(cMessage *msg) {

// Process data from devices and forward to the gateway

processData(msg);

}

void ControllerApp::processData(cMessage *msg) {

// Logic to process data from devices and forward to the gateway

cMessage *forwardMsg = new cMessage(“forwardData”);

send(forwardMsg, “out”);

delete msg; // Example: simply delete the message after processing

}

Example: Gateway Application (Pseudo-Code)

#include <omnetpp.h>

using namespace omnetpp;

class GatewayApp : public cSimpleModule

{

protected:

virtual void initialize() override;

virtual void handleMessage(cMessage *msg) override;

private:

void processData(cMessage *msg);

};

Define_Module(GatewayApp);

void GatewayApp::initialize() {

// Initialization code

}

void GatewayApp::handleMessage(cMessage *msg) {

// Process data from the controller

processData(msg);

}

void GatewayApp::processData(cMessage *msg) {

// Logic to process data from the controller

delete msg; // Example: simply delete the message after processing

}

Run the Simulation

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

Here, we all know how to deploy the Ultra Reliable Low Latency Communication in OMNet++ that creates the topology then apply the URLLC application logic to the network and then analyse the performance. More information will be shared about the Ultra Reliable Low Latency Communication and its execution in diverse simulations. We share with you simulation results for your project in Ultra Reliable Low Latency Communication in OMNeT++ tool. So get in touch with us for developers support.