How to Implement Massive Machine Communication in OMNeT++

To implement the Massive Machine Type Communication (mMTC) in OMNeT++ implicates conniving and put on a network somewhere a great number of plans like sensors, actuators communicate with a central organizer or entryway. In IoT applications where many low-power devices want to refer insignificant amounts of data intermittently in the mutual set-up. The following steps are about the MMTC in OMNeT++ with the INET framework:

Step-by-Step Implementations:

Install OMNeT++ and INET Framework

Make a certain to install the OMNeT++ and the INET Framework.

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 mMTCNetworkSimulation.

Define the Network Topology

To state the network topology, involving the big number of mMtc devices and a gateway to make a fresh NED file.

Example: mMTC Network Topology (mMTCNetwork.ned)

package mmtcnetwork;

import inet.node.inet.StandardHost;

import inet.node.inet.WirelessHost;

import inet.node.inet.Router;

network mMTCNetwork

{

parameters:

int numDevices = default(100); // Number of mMTC devices

@display(“bgb=800,400”);

submodules:

gateway: Router {

@display(“p=400,200”);

}

mmtcDevices[numDevices]: WirelessHost {

@display(“p=200,200; r,100”);

}

connections allowunconnected:

for i=0..numDevices-1 {

mmtcDevices[i].wlan[0] <–> AdhocChannel <–> gateway.wlan[0];

}

Configure the Simulation

To configure the parameters of the emulation to make an OMNeT++ initialization file.

Example: Configuration File (omnetpp.ini)

[General]

network = mmtcnetwork.mMTCNetwork

sim-time-limit = 500s

# Visualization

*.visualizer.canvasVisualizer.displayBackground = true

*.visualizer.canvasVisualizer.displayGrid = true

# mMTC Device Configuration

*.mmtcDevices[*].numApps = 1

*.mmtcDevices[*].app[0].typename = “MMTCApp”

*.mmtcDevices[*].app[0].destAddresses = “gateway”

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

*.mmtcDevices[*].app[0].messageLength = 128B

*.mmtcDevices[*].app[0].sendInterval = 10s

# Gateway Configuration

*.gateway.numApps = 1

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

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

# UDP Configuration

*.mmtcDevices[*].hasUdp = true

*.gateway.hasUdp = true

# Wireless Configuration

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

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

# IP Address Configuration

for i=0..99 {

*.mmtcDevices[i].ipv4.config = xmldoc(“mmtcDevice” + string(i) + “.xml”)

}

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

Create IP Address Configuration Files

Produce XML files to outline the IP address configuration to each node.

Example: IP Configuration File for mmtcDevice0 (mmtcDevice0.xml)

</interface>

</config>

Example: IP Configuration File for mmtcDevice1 (mmtcDevice1.xml)

</interface>

</config>

Repeat the upstairs for all mMTC devices like mmtcDevice2.xml, mmtcDevice3.xml, etc. through altered IP addresses.

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

</interface>

</config>

Implement mMTC Application Logic

To simulate mMTC applications, necessity to execute the logic for data spread and reception.

Example: mMTC Device Application (Pseudo-Code)

#include <omnetpp.h>

using namespace omnetpp;

class MMTCApp : public cSimpleModule

{

protected:

virtual void initialize() override;

virtual void handleMessage(cMessage *msg) override;

private:

void sendData();

};

Define_Module(MMTCApp);

void MMTCApp::initialize() {

// Initialization code

scheduleAt(simTime() + uniform(0, 10), new cMessage(“sendData”));

}

void MMTCApp::handleMessage(cMessage *msg) {

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

sendData();

scheduleAt(simTime() + 10, msg);

} else {

// Handle other messages

}

void MMTCApp::sendData() {

// Logic to send mMTC data to the gateway

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

send(msg, “out”);

}

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 mMTC devices

processData(msg);

}

void GatewayApp::processData(cMessage *msg) {

// Logic to process data from mMTC devices

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

}

Run the Simulation

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

Finally, we give step-by-step process and some example coding is very much helpful to execute the Massive Machine Type Communication in OMNeT++. Our developers assists you in the simulation and implementation of Massive Machine Type Communication using the OMNeT++ tool. For further assistance, please reach out to omnet-manual.com. We specialize in the communication between sensors and actuators with a central organizer for your projects, ensuring you receive the most comprehensive explanations from our developers.