How to Implement Network Energy Management in ns3

To implement network energy management in ns3, we need to configure the nodes to simulate energy consumption, setting up energy sources, and managing energy consumption for various network operations.

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Here is a complete guide to implement network energy management in ns3.

Steps for implementation

Step 1: Set up the simulation

Make sure that ns3 is installed in the computer. If not, install it.

Step 2: Create the network topology

Define the network topology with multiple nodes.

Step 3: Write the script

Here is an example script to create and configure a network topology with energy management using ns3.

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

#include “ns3/point-to-point-module.h”

#include “ns3/applications-module.h”

#include “ns3/energy-module.h”

#include “ns3/wifi-module.h”

using namespace ns3;

NS_LOG_COMPONENT_DEFINE (“EnergyManagementExample”);

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

{

CommandLine cmd;

cmd.Parse (argc, argv);

// Create nodes

NodeContainer nodes;

nodes.Create (2);

// Create point-to-point links and set attributes

PointToPointHelper pointToPoint;

pointToPoint.SetDeviceAttribute (“DataRate”, StringValue (“5Mbps”));

pointToPoint.SetChannelAttribute (“Delay”, StringValue (“2ms”));

// Install devices and links

NetDeviceContainer devices;

devices = pointToPoint.Install (nodes);

// Install the Internet stack on the nodes

InternetStackHelper stack;

stack.Install (nodes);

// Assign IP addresses to the devices

Ipv4AddressHelper address;

address.SetBase (“10.1.1.0”, “255.255.255.0”);

Ipv4InterfaceContainer interfaces = address.Assign (devices);

// Install energy source and energy model on the nodes

BasicEnergySourceHelper basicSourceHelper;

basicSourceHelper.Set (“BasicEnergySourceInitialEnergyJ”, DoubleValue (100.0));

EnergySourceContainer sources = basicSourceHelper.Install (nodes);

WifiRadioEnergyModelHelper radioEnergyHelper;

DeviceEnergyModelContainer deviceModels = radioEnergyHelper.Install (devices, sources);

// Create a UDP server application on node 1

UdpEchoServerHelper echoServer (9);

ApplicationContainer serverApps = echoServer.Install (nodes.Get (1));

serverApps.Start (Seconds (1.0));

serverApps.Stop (Seconds (10.0));

// Create a UDP client application on node 0

UdpEchoClientHelper echoClient (interfaces.GetAddress (1), 9);

echoClient.SetAttribute (“MaxPackets”, UintegerValue (100));

echoClient.SetAttribute (“Interval”, TimeValue (Seconds (1.0)));

echoClient.SetAttribute (“PacketSize”, UintegerValue (1024));

ApplicationContainer clientApps = echoClient.Install (nodes.Get (0));

clientApps.Start (Seconds (2.0));

clientApps.Stop (Seconds (10.0));

// Enable packet capturing

pointToPoint.EnablePcapAll (“energy-management”);

// Run the simulation

Simulator::Run ();

Simulator::Destroy ();

return 0;

}

Explanation:

1. Create Nodes:
   • Two nodes are created and connected using point-to-point links.
2. Install Internet Stack:
   • On all nodes, install the Internet stack.
3. Assign IP Addresses:
   • Assign IP addresses to the devices.
4. Install Energy Source and Energy Model:
   • Create an energy source by using the BasicEnergySourceHelper and install it on the nodes.
   • Install an energy model on the devices by using the WifiRadioEnergyModelHelper and associate it with the energy source.
5. Set Up Applications:
   • On the node 1, create a UDP Echo server.
   • On the node 0, create a UDP Echo client to send packets to the server.
6. Enable packet capturing:
   • Use EnablePcapAll method to capture the tranmitted packets.
7. Run Simulation:
   • Run the simulation.

Step 4: Build and Run the Simulation

Save the script as energy-management-example.cc and build the script using waf, then run the simulation.

./waf configure

./waf build

./waf –run energy-management-example

Step 5: Analyze the results

We will have pcap files generated by the EnablePcapAll method after running the simulation. We can analyze these files by using a tool like Wireshark. We can analyze the energy consumption of the nodes using the energy model installed.

On the whole, we had a performance analysis on the implementation of network energy management by configuring the nodes to simulate energy consumption, setting up energy sources, and managing energy consumption for various network operations.