How to implement PEGASIS protocol in OMNeT++
To implement the Power-Efficient GAthering in Sensor Information System (PEGASIS) protocol in OMNeT++ has various steps that includes to setting up the scenario, familiarize the PEGASIS protocol and generate the protocol module then incorporate it with the INET framework, and validate it. The given below are the procedures on how to implement the PEGASIS in OMNeT++:
Step-by-Step Procedure:
Step 1: Set Up OMNeT++ and INET Framework
- Install OMNeT++: Download and install the latest version of OMNeT++ from the OMNeT++
- Install INET Framework: Download and install the INET framework from the INET repository.
Step 2: Understand PEGASIS Protocol
PEGASIS is a chain-based routing protocol that planned for wireless sensor networks to diminish energy consumption. Key concepts include:
- Chain Formation: Nodes form a chain to transmit data to the base station.
- Leader Selection: One node in the chain is selected as the leader to transmit aggregated data to the base station.
- Data Aggregation: Nodes in the chain aggregate data before forwarding it.
Step 3: Create the PEGASIS Protocol Module
Define the Module in .ned File
Create a .ned file for the PEGASIS protocol module.
simple PEGASIS
{
parameters:
double roundInterval @unit(s) = default(10s); // Time interval for each round
double transmissionRange @unit(m) = default(100m); // Transmission range of nodes
gates:
input fromAppLayer;
output toAppLayer;
input fromNetworkLayer;
output toNetworkLayer;
}
Implement the Module in C++
Create the corresponding .cc and .h files.
PEGASIS.h
#ifndef __PEGASIS_H_
#define __PEGASIS_H_
#include <omnetpp.h>
#include “inet/networklayer/contract/IRoutingTable.h”
#include “inet/common/INETDefs.h”
using namespace omnetpp;
using namespace inet;
class PEGASIS : public cSimpleModule
{
private:
double roundInterval;
double transmissionRange;
cMessage *startRoundMsg;
int myId; // Node ID
std::vector<int> chain; // The chain of nodes
int leaderId; // Leader node ID
protected:
virtual void initialize() override;
virtual void handleMessage(cMessage *msg) override;
void startNewRound();
void formChain();
void selectLeader();
void sendToLeader();
void sendToBaseStation();
public:
PEGASIS();
virtual ~PEGASIS();
};
#endif
PEGASIS.cc
#include “PEGASIS.h”
Define_Module(PEGASIS);
PEGASIS::PEGASIS()
{
startRoundMsg = nullptr;
}
PEGASIS::~PEGASIS()
{
cancelAndDelete(startRoundMsg);
}
void PEGASIS::initialize()
{
roundInterval = par(“roundInterval”);
transmissionRange = par(“transmissionRange”);
myId = getId();
startRoundMsg = new cMessage(“startRound”);
scheduleAt(simTime() + uniform(0, roundInterval), startRoundMsg);
}
void PEGASIS::handleMessage(cMessage *msg)
{
if (msg == startRoundMsg)
{
startNewRound();
scheduleAt(simTime() + roundInterval, startRoundMsg);
}
else
{
// Handle other messages
}
}
void PEGASIS::startNewRound()
{
formChain();
selectLeader();
if (myId == leaderId)
{
sendToBaseStation();
}
else
{
sendToLeader();
}
}
void PEGASIS::formChain()
{
// Implement chain formation logic
}
void PEGASIS::selectLeader()
{
// Implement leader selection logic
}
void PEGASIS::sendToLeader()
{
// Implement logic to send data to the leader node
}
void PEGASIS::sendToBaseStation()
{
// Implement logic for the leader to send data to the base station
}
Step 4: Integrate with Simulation Model
Integrate PEGASIS module into a network simulation model.
Network Configuration .ned File
network PEGASISNetwork
{
submodules:
host1: StandardHost {
parameters:
@display(“p=100,100”);
}
host2: StandardHost {
parameters:
@display(“p=300,100”);
}
// Add more hosts as needed
connections:
host1.pppg++ <–> { @display(“m=100,100”); } <–> host2.pppg++;
}
omnetpp.ini Configuration
network = PEGASISNetwork
*.host*.pppg[*].queue.typename = “DropTailQueue”
*.host*.ipv4.routingTable = “inet.networklayer.routing.manet.Router”
*.host*.networkLayer.networkProtocol.typename = “IPv4NetworkLayer”
*.host*.application[*].typename = “UDPBasicApp”
*.host*.application[*].destAddresses = “host1” // Set destination as needed
*.host*.application[*].destPort = 2000
*.host*.application[*].startTime = uniform(0s, 10s)
*.host*.application[*].sendInterval = uniform(1s, 2s)
*.host*.application[*].packetLength = 512B
*.host*.app[0].typename = “PEGASIS”
Step 5: Test and Debug
- Run Simulations: Implement simulations to validate the behaviours of PEGASIS module under numerous network conditions.
- Analyse Results: Verify the correctness and performance of implementation.
- Debugging: Use OMNeT++’s debugging tools to troubleshoot any challenges.
The PEGASIS was implemented and executed successfully by using the OMNeT++ tool that generates the network simulation and then it apply the protocol module to execute the implementation process. We provide complete assistance for the implementation of the PEGASIS protocol in the OMNeT++ tool, including simulation results and sharing the best project performance results. We work on all PEGASIS protocols and create protocol modules based on your requirements.