How to Implement Network Interoperability in ns3

To implement network interoperability in ns3, we need to simulate a scenario by using different types of networks or network protocols that are interact and work together seamlessly. This can include interoperability between different wireless technologies (e.g., Wi-Fi and LTE), different routing protocols, or between different layers of the network stack. The following instruction will guide on implementing this in ns3 environment.

Step-by-step guide to implement network interoperability in ns3:

Step 1: Set Up ns3 Environment

1. Download ns-3: Download ns3
2. Install ns-3: Follow the installation instructions for operating system.
3. Familiarize with ns3 basics: Understand how to create nodes, set up channels, and run basic simulations.

Step 2: Create Network Topology

Create a network topology that includes different types of networks or protocols. For this example, we will create a scenario where Wi-Fi and LTE networks interact.

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

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

#include “ns3/wifi-module.h”

#include “ns3/lte-module.h”

#include “ns3/applications-module.h”

using namespace ns3;

 

NS_LOG_COMPONENT_DEFINE(“NetworkInteroperabilityExample”);

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

{

CommandLine cmd;

cmd.Parse(argc, argv);

// Create nodes

NodeContainer wifiNodes;

wifiNodes.Create(2);

NodeContainer lteNodes;

lteNodes.Create(2);

NodeContainer p2pNodes;

p2pNodes.Add(wifiNodes.Get(0)); // Add the first Wi-Fi node to the point-to-point network

p2pNodes.Create(1); // Create another node for the point-to-point network

// Create Wi-Fi network

YansWifiChannelHelper wifiChannel = YansWifiChannelHelper::Default();

YansWifiPhyHelper wifiPhy = YansWifiPhyHelper::Default();

wifiPhy.SetChannel(wifiChannel.Create());

WifiHelper wifi;

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

WifiMacHelper wifiMac;

Ssid ssid = Ssid(“ns-3-ssid”);

wifiMac.SetType(“ns3::StaWifiMac”, “Ssid”, SsidValue(ssid));

 

NetDeviceContainer wifiDevices;

wifiDevices = wifi.Install(wifiPhy, wifiMac, wifiNodes);

wifiMac.SetType(“ns3::ApWifiMac”, “Ssid”, SsidValue(ssid));

wifiDevices.Add(wifi.Install(wifiPhy, wifiMac, wifiNodes.Get(1)));

// Create LTE network

Ptr<LteHelper> lteHelper = CreateObject<LteHelper>();

Ptr<PointToPointEpcHelper> epcHelper = CreateObject<PointToPointEpcHelper>();

lteHelper->SetEpcHelper(epcHelper);

Ptr<Node> pgw = epcHelper->GetPgwNode();

InternetStackHelper internet;

internet.Install(lteNodes);

NodeContainer ueNodes;

ueNodes.Add(lteNodes.Get(0));

NodeContainer enbNodes;

enbNodes.Add(lteNodes.Get(1));

NetDeviceContainer enbLteDevs = lteHelper->InstallEnbDevice(enbNodes);

NetDeviceContainer ueLteDevs = lteHelper->InstallUeDevice(ueNodes);

lteHelper->Attach(ueLteDevs, enbLteDevs.Get(0));

// Assign IP addresses

Ipv4InterfaceContainer wifiInterfaces;

wifiInterfaces = internet.Assign(wifiDevices);

Ipv4InterfaceContainer ueIpIface;

ueIpIface = epcHelper->AssignUeIpv4Address(NetDeviceContainer(ueLteDevs));

 

Ptr<Node> ueNode = ueNodes.Get(0);

Ptr<Ipv4StaticRouting>ueStaticRouting = Ipv4RoutingHelper::GetRouting<Ipv4StaticRouting>(ueNode->GetObject<Ipv4>()->GetRoutingProtocol());

ueStaticRouting->SetDefaultRoute(epcHelper->GetUeDefaultGatewayAddress(), 1);

// Create point-to-point network

PointToPointHelper p2p;

p2p.SetDeviceAttribute(“DataRate”, StringValue(“5Mbps”));

p2p.SetChannelAttribute(“Delay”, StringValue(“2ms”));

NetDeviceContainer p2pDevices;

p2pDevices = p2p.Install(p2pNodes);

Ipv4AddressHelper address;

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

Ipv4InterfaceContainer p2pInterfaces;

p2pInterfaces = address.Assign(p2pDevices);

internet.Install(p2pNodes.Get(1)); // Install internet stack on the second point-to-point node

// Set up applications

uint16_t port = 9;

UdpEchoServerHelper echoServer(port);

ApplicationContainer serverApps = echoServer.Install(p2pNodes.Get(1));

serverApps.Start(Seconds(1.0));

serverApps.Stop(Seconds(10.0));

 

UdpEchoClientHelper echoClient(p2pInterfaces.GetAddress(1), port);

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

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

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

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

clientApps.Start(Seconds(2.0));

clientApps.Stop(Seconds(10.0));

Simulator::Stop(Seconds(10.0));

Simulator::Run();

Simulator::Destroy();

return 0;

}

Step 3: Simulate Interoperability

In this example, we create a scenario where a node in the Wi-Fi network communicates with a node in the LTE network via a point-to-point link. The steps include:

1. Setting Up Wi-Fi Network:
   • Create Wi-Fi nodes and install Wi-Fi devices.
   • Set up an Access Point (AP) and Station (STA) mode for Wi-Fi nodes.
2. Setting Up LTE Network:
   • Create LTE nodes and install LTE devices.
   • Set up an Evolved Packet Core (EPC) to handle LTE communication.
3. Creating Point-to-Point Network:
   • Establish a point-to-point link between the Wi-Fi network and an additional node to simulate interoperability.
4. Setting Up Applications:
   • Install UDP echo server on the point-to-point node.
   • Install UDP echo client on the Wi-Fi node to send packets to the LTE network.

Step 4: Run the Simulation

To observe the behavior of the interoperable networks we need to compile and run the simulation. We have to analyse that whether the Wi-Fi node successfully communicating with the LTE network through the point-to-point link.

From the whole steps provided here clearly explained about the implementation process of network interoperability in ns3, which interact with different types of network or network protocols and simulating the network with point-to-point link.

Complete support for implementing network interoperability in ns3, complete with detailed setup guidance. Our expertise facilitates interoperability among various wireless technologies, such as Wi-Fi and LTE, as well as different routing protocols and layers of the network stack. For your projects, we provide valuable insights and assistance. Share your research details with ns3simulation.com, and we will ensure you receive excellent direction.