To implement network co-channel inference in ns3 involving many steps. First, we have to set up the network topology and then, to introduce the inference we have to configure the wireless channel model and finally, Execute the simulation process to determine the impact of interference on network performance.
Here we provide a step-by-step implementation to help you get started:
Step-by-Step Implementation:
Step 1: Set Up the ns3 Environment
Make certain, you have ns3 installed on your system.
Step 2: Create a Simulation Script
We can create a new simulation script or modify an existing one to include the elements needed to simulate co-channel interference.
Step 3: Define Network Topology
Define the network topology, including nodes, mobility models, and Wi-Fi configuration.
#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;
NS_LOG_COMPONENT_DEFINE (“CoChannelInterferenceExample”);
int main (int argc, char *argv[])
{
// Set up default simulation parameters
uint32_t numNodes = 2;
double distance = 50.0;
double simulationTime = 10.0; // seconds
CommandLine cmd;
cmd.Parse (argc, argv);
NodeContainer wifiNodes;
wifiNodes.Create (numNodes);
YansWifiChannelHelper channel = YansWifiChannelHelper::Default ();
YansWifiPhyHelper phy = YansWifiPhyHelper::Default ();
phy.SetChannel (channel.Create ());
WifiHelper wifi;
wifi.SetStandard (WIFI_PHY_STANDARD_80211a);
WifiMacHelper mac;
Ssid ssid = Ssid (“ns3-ssid”);
mac.SetType (“ns3::StaWifiMac”,
“Ssid”, SsidValue (ssid),
“ActiveProbing”, BooleanValue (false));
NetDeviceContainer wifiDevices;
wifiDevices = wifi.Install (phy, mac, wifiNodes);
MobilityHelper mobility;
mobility.SetPositionAllocator (“ns3::GridPositionAllocator”,
“MinX”, DoubleValue (0.0),
“MinY”, DoubleValue (0.0),
“DeltaX”, DoubleValue (distance),
“DeltaY”, DoubleValue (distance),
“GridWidth”, UintegerValue (3),
“LayoutType”, StringValue (“RowFirst”));
mobility.SetMobilityModel (“ns3::ConstantPositionMobilityModel”);
mobility.Install (wifiNodes);
InternetStackHelper stack;
stack.Install (wifiNodes);
Ipv4AddressHelper address;
address.SetBase (“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces = address.Assign (wifiDevices);
UdpEchoServerHelper echoServer (9);
ApplicationContainer serverApps = echoServer.Install (wifiNodes.Get (1));
serverApps.Start (Seconds (1.0));
serverApps.Stop (Seconds (simulationTime));
UdpEchoClientHelper echoClient (interfaces.GetAddress (1), 9);
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 (simulationTime));
Simulator::Stop (Seconds (simulationTime));
Simulator::Run ();
Simulator::Destroy ();
return 0;
}
Step 4: Configure Co-Channel Interference
To introduce co-channel interference, you need to configure the PHY and channel parameters appropriately. You can add interfering nodes transmitting on the same channel. Here is an example of how to configure co-channel interference.
NodeContainer interferingNodes;
interferingNodes.Create (2); // Additional nodes causing interference
// Configure the PHY and MAC for interfering nodes
NetDeviceContainer interferingDevices;
interferingDevices = wifi.Install (phy, mac, interferingNodes);
mobility.Install (interferingNodes);
// Assign IP addresses to interfering nodes
Ipv4InterfaceContainer interferingInterfaces = address.Assign (interferingDevices);
// Set up applications on interfering nodes to generate traffic
UdpEchoServerHelper interferingEchoServer (10);
ApplicationContainer interferingServerApps = interferingEchoServer.Install (interferingNodes.Get (1));
interferingServerApps.Start (Seconds (1.0));
interferingServerApps.Stop (Seconds (simulationTime));
UdpEchoClientHelper interferingEchoClient (interferingInterfaces.GetAddress (1), 10);
interferingEchoClient.SetAttribute (“MaxPackets”, UintegerValue (100));
interferingEchoClient.SetAttribute (“Interval”, TimeValue (Seconds (0.1)));
interferingEchoClient.SetAttribute (“PacketSize”, UintegerValue (1024));
ApplicationContainer interferingClientApps = interferingEchoClient.Install (interferingNodes.Get (0));
interferingClientApps.Start (Seconds (2.0));
interferingClientApps.Stop (Seconds (simulationTime));
Step 5: Run the Simulation
Finally, we have to compile and run your simulation script to observe the effects of co-channel interference.
./waf configure
./waf build
./waf –run scratch/your-script-name
Step 6: Analyze Results
Once the compilation process is completed, we have analyze the results to evaluate the impact of co-channel interference on network performance metrics like throughput, delay, and packet loss.
Additional Considerations
We can also enhance this, by extending the functionalities of network co-channel interference. Take a look at the following steps:
- Channel Model: To reflect realistic interference conditions, we can adjust the channel model parameters
- Mobility Model: if the nodes are mobile, we have to Integrate the realistic mobility patterns.
- Interference Patterns: To find the interference patterns like varying the transmission power, packet sizes, and data rates, we have to experiment the inference.
Finally, through the script we successfully completed the process by following the provided implementation steps on how to implement network co-channel interference in ns3. If you need any further information we will provide related information based on what you need.
Ns3simulation.com experts can assist you with the implementation of Network Co channel interference in ns3tool. If you encounter any difficulties after following the steps mentioned above, feel free to reach out to us for assistance. We are here to help you with the performance analysis of your project.