How to Start Zigbee Topology Projects Using NS3

Starting a ZigBee Topology Project in NS-3

To stimulate the ZigBee is a low-power and low-data-rate wireless communication standard frequently utilized in their Internet of things, sensor networks, and home automation systems. In NS-3 ZigBee functionality could be modelled utilized in the IEEE 802.15.4 module that handles the personal area network (PAN) settings.

Steps to Start Zigbee Topology Projects Using NS3

Step 1: Set Up NS-3

  1. Install NS-3:
    • Download NS-3.
    • Ensure they have IEEE 802.15.4 module ensured. And checked your NS-3 build setting:

./waf configure –enable-modules=802.15.4

  1. Verify Installation: Validate the NS-3 used a basic example:

./waf –run scratch/my_first

Step 2: Understand ZigBee Topology

ZigBee handles the following network topologies:

  • Star Topology:
    • A coordinator transmission directly through end devices.
  • Tree Topology:
    • The nodes are hierarchically connected through routers sending the data.
  • Mesh Topology:
    • Devices are communicate directly or through intermediate nodes.

Step 3: Plan the Topology

  1. Define the number of nodes:
    • For Sample, the number of nodes in one coordinator are two routers and five end devices.
  2. Select the topology:
    • We select the Star, tree, or mesh topology.
  3. Set simulation goals:
    • Calculate their packet delivery ratio, delay, and energy usage.

Step 4: Set Up the ZigBee Topology

  1. Create Nodes: Describe the nodes in the ZigBee network.

NodeContainer coordinator, routers, endDevices;

coordinator.Create(1); // One coordinator

routers.Create(2);     // Two routers

endDevices.Create(5); // Five end devices

  1. Configure IEEE 802.15.4 Devices: Utilized the configuration of IEEE 802.15.4 helper we setting the ZigBee devices.

LrWpanHelper lrWpanHelper;

// Install IEEE 802.15.4 on the nodes

NetDeviceContainer coordinatorDevice = lrWpanHelper.Install(coordinator);

NetDeviceContainer routerDevices = lrWpanHelper.Install(routers);

NetDeviceContainer endDeviceDevices = lrWpanHelper.Install(endDevices);

  1. Assign MAC Addresses: Allocate the unique MAC addresses to devices.

lrWpanHelper.AssociateToPan(coordinatorDevice, 0); // PAN ID 0

lrWpanHelper.AssociateToPan(routerDevices, 0);

lrWpanHelper.AssociateToPan(endDeviceDevices, 0);

  1. Configure Mobility: Dwelling nodes in the desired layout such as star or grid.

MobilityHelper mobility;

// Coordinator at the center

Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator>();

positionAlloc->Add(Vector(50.0, 50.0, 0.0)); // Coordinator position

mobility.SetPositionAllocator(positionAlloc);

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

mobility.Install(coordinator);

// Other nodes randomly placed

positionAlloc->Add(Vector(20.0, 50.0, 0.0)); // Router 1

positionAlloc->Add(Vector(80.0, 50.0, 0.0)); // Router 2

positionAlloc->Add(Vector(30.0, 70.0, 0.0)); // End Device 1

positionAlloc->Add(Vector(70.0, 30.0, 0.0)); // End Device 2

// … Add more as needed

mobility.Install(routers);

mobility.Install(endDevices);

  1. Install Internet Stack: Add an Internet stack for routing.

InternetStackHelper internet;

internet.Install(coordinator);

internet.Install(routers);

internet.Install(endDevices);

Ipv4AddressHelper address;

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

Ipv4InterfaceContainer coordinatorInterfaces = address.Assign(coordinatorDevice);

Ipv4InterfaceContainer routerInterfaces = address.Assign(routerDevices);

Ipv4InterfaceContainer endDeviceInterfaces = address.Assign(endDeviceDevices);

Step 5: Simulate Traffic

  1. Set Up Applications: Install traffic generators we replicate the data transmission.
    • UDP Echo Server:

UdpEchoServerHelper echoServer(9); // Port 9

ApplicationContainer serverApp = echoServer.Install(coordinator.Get(0)); // Coordinator

serverApp.Start(Seconds(1.0));

serverApp.Stop(Seconds(10.0));

    • UDP Echo Client:

UdpEchoClientHelper echoClient(coordinatorInterfaces.GetAddress(0), 9); // Coordinator’s IP

echoClient.SetAttribute(“MaxPackets”, UintegerValue(10));

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

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

ApplicationContainer clientApp = echoClient.Install(endDevices.Get(0)); // End Device 1

clientApp.Start(Seconds(2.0));

clientApp.Stop(Seconds(10.0));

Step 6: Run and Analyze

  1. Run the Simulation:

Simulator::Run();

Simulator::Destroy();

  1. Enable Packet Capture: Save .pcap files for analysis.

lrWpanHelper.EnablePcapAll(“zigbee_topology”);

  1. Analyze Results: Utilized the results for logs or packet traces we estimate the network performance.

Example: Minimal ZigBee Topology Script

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

#include “ns3/lr-wpan-module.h”

#include “ns3/mobility-module.h”

#include “ns3/applications-module.h”

using namespace ns3;

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

NodeContainer coordinator, routers, endDevices;

coordinator.Create(1);

routers.Create(2);

endDevices.Create(5);

// Configure IEEE 802.15.4

LrWpanHelper lrWpanHelper;

NetDeviceContainer coordinatorDevice = lrWpanHelper.Install(coordinator);

NetDeviceContainer routerDevices = lrWpanHelper.Install(routers);

NetDeviceContainer endDeviceDevices = lrWpanHelper.Install(endDevices);

lrWpanHelper.AssociateToPan(coordinatorDevice, 0);

lrWpanHelper.AssociateToPan(routerDevices, 0);

lrWpanHelper.AssociateToPan(endDeviceDevices, 0);

// Configure mobility

MobilityHelper mobility;

Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator>();

positionAlloc->Add(Vector(50.0, 50.0, 0.0)); // Coordinator

positionAlloc->Add(Vector(30.0, 30.0, 0.0)); // Router 1

positionAlloc->Add(Vector(70.0, 30.0, 0.0)); // Router 2

positionAlloc->Add(Vector(30.0, 70.0, 0.0)); // End Device 1

positionAlloc->Add(Vector(70.0, 70.0, 0.0)); // End Device 2

mobility.SetPositionAllocator(positionAlloc);

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

mobility.Install(coordinator);

mobility.Install(routers);

mobility.Install(endDevices);

// Install Internet stack

InternetStackHelper internet;

internet.Install(coordinator);

internet.Install(routers);

internet.Install(endDevices);

Ipv4AddressHelper address;

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

address.Assign(coordinatorDevice);

address.Assign(routerDevices);

address.Assign(endDeviceDevices);

// Set up UDP echo server and client

UdpEchoServerHelper echoServer(9);

ApplicationContainer serverApp = echoServer.Install(coordinator.Get(0));

serverApp.Start(Seconds(1.0));

serverApp.Stop(Seconds(10.0));

UdpEchoClientHelper echoClient(Ipv4Address(“10.1.1.1”), 9);

echoClient.SetAttribute(“MaxPackets”, UintegerValue(10));

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

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

ApplicationContainer clientApp = echoClient.Install(endDevices.Get(0));

clientApp.Start(Seconds(2.0));

clientApp.Stop(Seconds(10.0));

lrWpanHelper.EnablePcapAll(“zigbee_topology”);

Simulator::Run();

Simulator::Destroy();

return 0;

}

This illustration has given you the general steps to create a simulation network which help us to simulate the Zigbee Topology in the NS3 environment and also, we provide how to attach the enhance features to the simulation. If any queries for this based on requirements, we will clarify you.

Confirm that you include all pertinent information regarding your Zigbee Topology Projects utilizing NS3 when submitting to phdprojects.org, and we assure you of our commitment to achieving optimal results. We have expertise in the IEEE 802.15.4 module and will support you throughout the completion of your project.