To implement the scalable parameterization in ns3 has encompasses to set up the simulation scenario that have numerous parameters that can certainly adjusted and scaled for various scenarios. It can perceive through the use of command-line arguments, configuration files, or scripts. In the given below is the complete procedure on how to implement the scalable parameterization in ns-3:
Step-by-step Implementation:
Step 1: Set up Your ns3 Environment
Make sure ns3 is simulated in the system.
Step 2: Create a New Simulation Script
Create a new simulation script in the scratch directory of your ns-3 installation. For example, create a file named scalable_parameterization.cc.
Step 3: Include Necessary Headers
Include the required ns3 headers at the beginning of your script. Here’s an example:
#include “ns3/core-module.h”
#include “ns3/network-module.h”
#include “ns3/internet-module.h”
#include “ns3/wifi-module.h”
#include “ns3/mobility-module.h”
#include “ns3/applications-module.h”
using namespace ns3;
Step 4: Define Command-Line Arguments for Parameterization
Use the CommandLine class to define parameters that can be set through the command line.
int main(int argc, char *argv[])
{
uint32_t numNodes = 10; // Number of nodes
double simTime = 10.0; // Simulation time in seconds
std::string dataRate = “1Mbps”; // Data rate
CommandLine cmd;
cmd.AddValue(“numNodes”, “Number of nodes”, numNodes);
cmd.AddValue(“simTime”, “Simulation time (seconds)”, simTime);
cmd.AddValue(“dataRate”, “Data rate”, dataRate);
cmd.Parse(argc, argv);
NodeContainer nodes;
nodes.Create(numNodes);
WifiHelper wifi;
wifi.SetStandard(WIFI_STANDARD_80211g);
WifiMacHelper wifiMac;
wifiMac.SetType(“ns3::AdhocWifiMac”);
YansWifiPhyHelper wifiPhy = YansWifiPhyHelper::Default();
YansWifiChannelHelper wifiChannel = YansWifiChannelHelper::Default();
wifiPhy.SetChannel(wifiChannel.Create());
NetDeviceContainer devices = wifi.Install(wifiPhy, wifiMac, nodes);
MobilityHelper mobility;
mobility.SetMobilityModel(“ns3::ConstantPositionMobilityModel”);
mobility.Install(nodes);
InternetStackHelper stack;
stack.Install(nodes);
Ipv4AddressHelper address;
address.SetBase(“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces = address.Assign(devices);
// Install applications
uint16_t port = 9;
OnOffHelper onoff(“ns3::UdpSocketFactory”, Address(InetSocketAddress(interfaces.GetAddress(numNodes-1), port)));
onoff.SetConstantRate(DataRate(dataRate));
ApplicationContainer apps = onoff.Install(nodes.Get(0));
apps.Start(Seconds(1.0));
apps.Stop(Seconds(simTime));
PacketSinkHelper sink(“ns3::UdpSocketFactory”, Address(InetSocketAddress(Ipv4Address::GetAny(), port)));
apps = sink.Install(nodes.Get(numNodes-1));
apps.Start(Seconds(0.0));
apps.Stop(Seconds(simTime));
Simulator::Stop(Seconds(simTime));
Simulator::Run();
Simulator::Destroy();
return 0;
}
Step 5: Compile and Run Your Simulation
Compile your simulation script using waf:
./waf configure
./waf build
./waf –run “scratch/scalable_parameterization –numNodes=20 –simTime=20.0 –dataRate=2Mbps”
Step 6: Analyze and Adjust Parameters
You can now run your simulation with different parameters to see how they affect the results. By adjusting the values of numNodes, simTime, and dataRate, you can easily scale your simulation to different scenarios.
Finally, as we discussed earlier about how to implement the scalable parameterization in ns3 tool that has create and make use of command-line arguments, configuration files and then analyse the result. We also provide the further insights about the scalable parameterization.
We at ns3simulation.com conduct thorough comparative analysis on Scalable Parameterization in ns3tool. Should you encounter any challenges, do not hesitate to reach out to us. Simply provide us with your parameter details, and we will deliver exceptional results.