How to Begin Implement Network Cluster head lifetime in ns3

To implement and examine Cluster Head Lifetime in NS3, we can typically replicate the clustered network structure in which sure the nodes are designated as cluster heads (CHs) according to the detail conditions like as energy level, distance, or node ID. The generation of cluster head is the duration for remains the operational until the process for out of energy or exchanged.

Steps to Implement Cluster Head Lifetime in NS3

1. Understand Cluster Head Lifetime

• Definition:
  • Cluster Head Lifetime suggests to the duration that clusters head is operational, frequently dictated by its energy level.
• Significance:
  • Longer cluster head lifetimes for assure the fixed communication and decrease the requirements for frequent re-clustering that can save the energy.

2. Set Up NS3 Simulation Environment

1. Install NS3:
   • Assure the NS3 is installed. Download it from the NS3 website.
2. Choose a Network Model:
   • Use wireless networks such as Wireless Sensor Networks (WSNs) or Mobile Ad-hoc Networks (MANETs) for clustering.
3. Enable Energy Models:
   • Use the tool like NS3’s Energy Framework for follow the node energy levels.

3. Implement Clustering Logic

1. Cluster Formation:
   • Allocate the cluster heads using predefined conditions for sample highest initial energy, proximity to other nodes.
2. Energy Consumption:
   • Replicate the energy usage for cluster head actions like as data aggregation and forwarding.

4. Track Cluster Head Lifetime

1. Monitor Energy Levels:
   • Periodically test for the energy level in cluster heads.
2. Log Lifetime:
   • Record the duration that cluster head for reduce the energy.

Example Script: Cluster Head Lifetime in NS3

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

#include “ns3/wifi-module.h”

#include “ns3/mobility-module.h”

#include “ns3/energy-module.h”

#include “ns3/applications-module.h”

using namespace ns3;

class ClusterHeadManager {

public:

ClusterHeadManager(NodeContainer nodes, EnergySourceContainer energySources)

: m_nodes(nodes), m_energySources(energySources) {}

void MonitorClusterHeadLifetime(uint32_t clusterHeadId) {

Ptr<BasicEnergySource> energySource = DynamicCast<BasicEnergySource>(m_energySources.Get(clusterHeadId));

if (energySource) {

if (energySource->GetRemainingEnergy() > 0) {

NS_LOG_UNCOND(“Time: ” << Simulator::Now().GetSeconds()

<< “s, Cluster Head ” << clusterHeadId

<< ” Energy: ” << energySource->GetRemainingEnergy() << ” J”);

Simulator::Schedule(Seconds(1.0), &ClusterHeadManager::MonitorClusterHeadLifetime, this, clusterHeadId);

} else {

NS_LOG_UNCOND(“Time: ” << Simulator::Now().GetSeconds()

<< “s, Cluster Head ” << clusterHeadId

<< ” has run out of energy.”);

}

}

}

private:

NodeContainer m_nodes;

EnergySourceContainer m_energySources;

};

int main(int argc, char *argv[]) {

CommandLine cmd;

cmd.Parse(argc, argv);

// Create nodes

NodeContainer nodes;

nodes.Create(10); // 10 nodes in the network

// Configure WiFi

YansWifiChannelHelper wifiChannel = YansWifiChannelHelper::Default();

YansWifiPhyHelper wifiPhy = YansWifiPhyHelper::Default();

wifiPhy.SetChannel(wifiChannel.Create());

WifiHelper wifi;

wifi.SetStandard(WIFI_PHY_STANDARD_80211g);

WifiMacHelper mac;

mac.SetType(“ns3::AdhocWifiMac”);

NetDeviceContainer devices = wifi.Install(wifiPhy, mac, nodes);

// Configure mobility

MobilityHelper mobility;

mobility.SetPositionAllocator(“ns3::RandomRectanglePositionAllocator”,

“X”, StringValue(“ns3::UniformRandomVariable[Min=0.0|Max=100.0]”),

“Y”, StringValue(“ns3::UniformRandomVariable[Min=0.0|Max=100.0]”));

mobility.SetMobilityModel(“ns3::ConstantPositionMobilityModel”);

mobility.Install(nodes);

// Configure energy sources

BasicEnergySourceHelper energySourceHelper;

energySourceHelper.Set(“BasicEnergySourceInitialEnergyJ”, DoubleValue(50.0)); // 50 Joules initial energy

EnergySourceContainer energySources = energySourceHelper.Install(nodes);

// Configure device energy models

WifiRadioEnergyModelHelper wifiRadioEnergyHelper;

wifiRadioEnergyHelper.Install(devices, energySources);

// Select Cluster Head (e.g., Node 0)

uint32_t clusterHeadId = 0;

// Monitor Cluster Head Lifetime

ClusterHeadManager clusterHeadManager(nodes, energySources);

Simulator::Schedule(Seconds(1.0), &ClusterHeadManager::MonitorClusterHeadLifetime, &clusterHeadManager, clusterHeadId);

Simulator::Run();

Simulator::Destroy();

return 0;

}

Explanation of the Script

1. Energy Model:
   • Assign the BasicEnergySource for every node by initial energy for 50 Joules.
   • Uses WifiRadioEnergyModel for replicate the energy usage for transmission, reception, and idle states.
2. Cluster Head Selection:
   • Node 0 is statically designated for the cluster head. This can be dynamically changed by clustering procedures.
3. Lifetime Monitoring:
   • Periodically has record the energy level for the cluster head and after reduce the notes.
4. Mobility:
   • Setting the nodes by fixed positions. Mobility designs can be additional for dynamic environments.

5. Run the Simulation

1. Build the script:

./waf –run “cluster-head-lifetime”

1. Follow the logs for the energy levels in the cluster head for reduce the duration.

Here, we had assumed simple implementation and estimation for how the network lifetime communicates private the cluster and with the base station with the use of ns3 tool. We will give how the network lifetime will perform in other simulation tools.