Ns3 Projects for B.E/B.Tech M.E/M.Tech PhD Scholars.  Phone-Number:9790238391   E-mail: ns3simulation@gmail.com

How to Implement Wireless LANs in ns3

To Implement Wireless LANs (WLANs) in NS-3 by configuring a network that communicates between nodes within a limited area Which follows IEEE 802.11 protocols, like home, school, or office are explained by us, get best programs done by us for your concept. To simulate the traffic and interactions, it involves defining nodes, setting up Wi-Fi devices, and configuring the network stack and applications over the WLAN.

 Here step-by-step guide given on setting up a basic WLAN simulation in NS-3:

Step-by-Step Implementation of Wireless LANs in NS-3:

Step 1: Install NS-3

Ensure that NS-3 is installed on the system. Follow the installation instructions provided on the website.

Step 2: Create a Basic WLAN Setup

Create a simple script that sets up a WLAN with multiple nodes communicating through an Access Point (AP).

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/mobility-module.h”

#include “ns3/wifi-module.h”

#include “ns3/internet-module.h”

#include “ns3/applications-module.h”

using namespace ns3;

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

{

    bool verbose = true;

    uint32_t nWifi = 3; // Number of wifi stations

    CommandLine cmd;

    cmd.AddValue (“nWifi”, “Number of wifi STA devices”, nWifi);

    cmd.AddValue (“verbose”, “Tell echo applications to log if true”, verbose);

    cmd.Parse (argc,argv);

 

    if (verbose)

    {

        LogComponentEnable (“UdpEchoClientApplication”, LOG_LEVEL_INFO);

        LogComponentEnable (“UdpEchoServerApplication”, LOG_LEVEL_INFO);

    }

    NodeContainer wifiStaNodes;

    wifiStaNodes.Create (nWifi);

    NodeContainer wifiApNode;

    wifiApNode.Create (1);

    YansWifiChannelHelper channel = YansWifiChannelHelper::Default ();

    YansWifiPhyHelper phy = YansWifiPhyHelper::Default ();

    phy.SetChannel (channel.Create ());

    WifiHelper wifi;

    wifi.SetRemoteStationManager (“ns3::AarfWifiManager”);

    WifiMacHelper mac;

    Ssid ssid = Ssid (“ns-3-ssid”);

    mac.SetType (“ns3::StaWifiMac”,

                 “Ssid”, SsidValue (ssid),

                 “ActiveProbing”, BooleanValue (false));

    NetDeviceContainer staDevices;

    staDevices = wifi.Install (phy, mac, wifiStaNodes);

    mac.SetType (“ns3::ApWifiMac”,

                 “Ssid”, SsidValue (ssid));

    NetDeviceContainer apDevice;

    apDevice = wifi.Install (phy, mac, wifiApNode);

 

    MobilityHelper mobility;

    mobility.SetPositionAllocator (“ns3::GridPositionAllocator”,

                                   “MinX”, DoubleValue (0.0),

                                   “MinY”, DoubleValue (0.0),

                                   “DeltaX”, DoubleValue (5.0),

                                   “DeltaY”, DoubleValue (10.0),

                                   “GridWidth”, UintegerValue (3),

                                   “LayoutType”, StringValue (“RowFirst”));

    mobility.SetMobilityModel (“ns3::RandomWalk2dMobilityModel”,

                               “Bounds”, RectangleValue (Rectangle (-50, 50, -50, 50)));

    mobility.Install (wifiStaNodes);

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

    mobility.Install (wifiApNode);

    InternetStackHelper stack;

    stack.Install (wifiApNode);

    stack.Install (wifiStaNodes);

    Ipv4AddressHelper address;

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

    Ipv4InterfaceContainer staInterfaces;

    staInterfaces = address.Assign (staDevices);

    Ipv4InterfaceContainer apInterface;

    apInterface = address.Assign (apDevice);

    UdpEchoServerHelper echoServer (9);

    ApplicationContainer serverApps = echoServer.Install (wifiApNode.Get (0));

    serverApps.Start (Seconds (1.0));

    serverApps.Stop (Seconds (10.0));

 

    UdpEchoClientHelper echoClient (apInterface.GetAddress (0), 9);

    echoClient.SetAttribute (“MaxPackets”, UintegerValue (1));

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

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

    ApplicationContainer clientApps = echoClient.Install (wifiStaNodes);

    clientApps.Start (Seconds (2.0));

    clientApps.Stop (Seconds (10.0));

    Simulator::Stop (Seconds (10.0));

    Simulator::Run ();

    Simulator::Destroy ();

    return 0;

}

Step 3: Customize and Extend

The basic setup above can be modified and prolonged by adding more nodes, configuring diverse Wi-Fi standards (e.g., wifi.SetStandard(WIFI_PHY_STANDARD_80211n)), and implementing more complex mobility or traffic patterns.

Step 4: Run and Analyze

Here we must Compile and run the ns3 script. We can analyse the simulation output to assess the performance of the WLAN, examining metrics such as throughput, delay, and packet loss.

Finally, we all get to know about the implementing process of Wireless LANs (WLANs) in ns3 environment using IEEE 802.11 protocols for communication between nodes.Reach out for us for more performance analyses support for your project.