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How To Implement 5G Network In Ns3

Here, we explore the basic concepts and procedures to implement 5G Network in ns-3 on the system. Let’s start!

To implement 5G Network in ns3 contains the New radio (NR) module that obtainable in the ns-3 repository. Any types of module based on 5G network are worked by us .

Here are the procedures to set up the 5G network using the ns-3.

Step-by-Step Guide to Implement a 5G Network in ns-3

  1. Install ns-3 with NR Module:
  • Ensure ns-3 is installed with the NR module. The NR module is available in the ns-3-dev repository.

git clone https://gitlab.com/nsnam/ns-3-dev.git

cd ns-3-dev

./ns3 configure –enable-examples –enable-tests

./ns3 build

  1. Create a Simulation Script:
  • Create a new script file, e.g., 5g-simulation.cc.
  1. Include Necessary Headers:

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

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

#include “ns3/mobility-module.h”

#include “ns3/applications-module.h”

#include “ns3/nr-module.h”

  1. Define the Main Function:

using namespace ns3;

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

{

  CommandLine cmd;

  cmd.Parse (argc, argv);

  1. Set Up the Network Topology:
  • Create nodes for the gNB (5G base stations) and UEs (user equipment)

NodeContainer ueNodes;

ueNodes.Create (2); // Create 2 UEs

NodeContainer gnbNodes;

gnbNodes.Create (1); // Create 1 gNB

  1. Install the NR Network Devices:
  • Install the NR network devices on the gNB and UEs

Ptr<NrHelper> nrHelper = CreateObject<NrHelper> ();

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

nrHelper->SetEpcHelper (epcHelper);

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

// Install NR Devices to the gNB and UEs

NetDeviceContainer gnbNrDevs = nrHelper->InstallGnbDevice (gnbNodes);

NetDeviceContainer ueNrDevs = nrHelper->InstallUeDevice (ueNodes);

// Install the IP stack on the UEs

InternetStackHelper internet;

internet.Install (ueNodes);

// Assign IP addresses to the UEs

Ipv4InterfaceContainer ueIpIface;

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

// Attach the UEs to the gNB

nrHelper->Attach (ueNrDevs, gnbNrDevs.Get (0));

  1. Configure Mobility:
  • Set up the mobility model for the gNB and UEs:

MobilityHelper mobility;

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

mobility.Install (gnbNodes);

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

mobility.Install (ueNodes);

// Set initial positions and velocities for UEs

Ptr<ConstantVelocityMobilityModel> ueMobility1 = ueNodes.Get(0)->GetObject<ConstantVelocityMobilityModel>();

ueMobility1->SetPosition (Vector (0, 0, 0));

ueMobility1->SetVelocity (Vector (20, 0, 0)); // Moving at 20 m/s

Ptr<ConstantVelocityMobilityModel> ueMobility2 = ueNodes.Get(1)->GetObject<ConstantVelocityMobilityModel>();

ueMobility2->SetPosition (Vector (50, 0, 0));

ueMobility2->SetVelocity (Vector (-10, 0, 0)); // Moving at -10 m/s

  1. Install Applications:
  • Create and install a UDP echo server application on one of the UEs

UdpEchoServerHelper echoServer (9);

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

serverApps.Start (Seconds (1.0));

serverApps.Stop (Seconds (10.0));

// Create and install a UDP echo client application on the other UE:

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

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

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

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

ApplicationContainer clientApps = echoClient.Install (ueNodes.Get (1));

clientApps.Start (Seconds (2.0));

clientApps.Stop (Seconds (10.0));

  1. Run the Simulation:
  • Define the simulation stop time and start the simulator

Simulator::Stop (Seconds (10.0));

Simulator::Run ();

Simulator::Destroy ();

return 0;

Example Complete Script (5g-simulation.cc):

At the present, we provide the instances script to complete the 5g-simulation in the ns-3 environment

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

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

#include “ns3/mobility-module.h”

#include “ns3/applications-module.h”

#include “ns3/nr-module.h”

using namespace ns3;

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

{

  CommandLine cmd;

  cmd.Parse (argc, argv);

  NodeContainer ueNodes;

  ueNodes.Create (2); // Create 2 UEs

  NodeContainer gnbNodes;

  gnbNodes.Create (1); // Create 1 gNB

  Ptr<NrHelper> nrHelper = CreateObject<NrHelper> ();

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

  nrHelper->SetEpcHelper (epcHelper);

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

  // Install NR Devices to the gNB and UEs

  NetDeviceContainer gnbNrDevs = nrHelper->InstallGnbDevice (gnbNodes);

  NetDeviceContainer ueNrDevs = nrHelper->InstallUeDevice (ueNodes);

  // Install the IP stack on the UEs

  InternetStackHelper internet;

  internet.Install (ueNodes);

  // Assign IP addresses to the UEs

  Ipv4InterfaceContainer ueIpIface;

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

  // Attach the UEs to the gNB

  nrHelper->Attach (ueNrDevs, gnbNrDevs.Get (0));

  // Set up the mobility model

  MobilityHelper mobility;

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

  mobility.Install (gnbNodes);

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

  mobility.Install (ueNodes);

  // Set initial positions and velocities for UEs

  Ptr<ConstantVelocityMobilityModel> ueMobility1 = ueNodes.Get(0)->GetObject<ConstantVelocityMobilityModel>();

  ueMobility1->SetPosition (Vector (0, 0, 0));

  ueMobility1->SetVelocity (Vector (20, 0, 0)); // Moving at 20 m/s

  Ptr<ConstantVelocityMobilityModel> ueMobility2 = ueNodes.Get(1)->GetObject<ConstantVelocityMobilityModel>();

  ueMobility2->SetPosition (Vector (50, 0, 0));

  ueMobility2->SetVelocity (Vector (-10, 0, 0)); // Moving at -10 m/s

  // Install Applications

  UdpEchoServerHelper echoServer (9);

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

  serverApps.Start (Seconds (1.0));

  serverApps.Stop (Seconds (10.0));

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

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

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

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

  ApplicationContainer clientApps = echoClient.Install (ueNodes.Get (1));

  clientApps.Start (Seconds (2.0));

  clientApps.Stop (Seconds (10.0));

  Simulator::Stop (Seconds (10.0));

  Simulator::Run ();

  Simulator::Destroy ();

  return 0;

}

Explanation:

At this place, we describe,

  1. Network Configuration:
  • Nodes are created for the UEs and gNB.
  • The NR network devices are installed on these nodes, and IP addresses are assigned.
  1. Mobility:
  • The mobility model is set for the gNB and UEs. The UEs are given initial positions and velocities to simulate movement.
  1. Applications:
  • A UDP echo server application is installed on one of the UEs.
  • A UDP echo client application is installed on the other UE to simulate communication.
  1. Running the Simulation:
  • The simulation is run for a specified duration, and then the simulator is destroyed to clean up.

In conclusion we all know that to simulate and compile 5G network in ns-3 and we supports the numerous kinds of 5G network mechanism. Stay on touch with us.