How to Begin Implementing a 5G network Slicing using ns3

To stimulate for apply a 5G Network Slicing project in ns-3 it includes the replicate for split a physical network in several virtualized slices every tailored for specific the channel like improved Mobile Broadband (eMBB), Ultra-Reliable Low Latency Communications (URLLC), or massive Machine Type Communications (mMTC). Below is a step-by-step guide follow on started:

Steps to Begin Implementing a 5G network Slicing projects using ns3

Step 1: Understand Network Slicing in 5G

1. What is Network Slicing?
   • Network slicing has permits the several virtual networks for coexist on the similar physical infrastructure, every by its own Quality of Service (QoS) parameters.
2. Key Components:
   • Radio Access Network (RAN): It maintain the communication among user equipment (UE) and the core network.
   • Core Network: it helps for virtualization and resource management for slices.
   • Slice Types:
     • eMBB: High bandwidth for applications such as video streaming.
     • URLLC: Low latency and high reliability designed for mission-critical applications.
     • mMTC: Massive connectivity for IoT devices.
3. Use Cases:
   • It delivers the smart cities, industrial IoT, autonomous vehicles, AR/VR.

Step 2: Install and Configure ns-3

1. Download ns-3:
   • Install the latest version of ns-3 from nsnam.org.
2. Enable Required Modules:
   • Create ns-3 through LTE, mmWave, and core network support:

./waf configure –enable-modules=lte,internet,point-to-point,core

./waf build

1. Verify Installation:
   • Process an LTE or 5G sample:

./waf –run lte-simple

./waf –run mmwave-simple

Step 3: Define the Project Scope

• Scenario:
  • It replicates the 5G network slices for eMBB, URLLC, and mMTC traffic.
  • Deploy several for UEs and gNBs through separate a resources for every slice.
• Metrics:
  • It offers the performance of parameter metrices such as bandwidth utilization, latency, throughput, and slice isolation.

Step 4: Set Up the Network Topology

1. Create Nodes:
   • Descirbe the UEs, gNBs (5G base stations), and main module for network:

NodeContainer gNbNodes, ueNodes;

gNbNodes.Create(2);  // 2 gNBs

ueNodes.Create(10);  // 10 UEs

1. Set Up Mobility:
   • Setting the mobility for UEs:

MobilityHelper mobility;

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

mobility.Install(ueNodes);

for (uint32_t i = 0; i < ueNodes.GetN(); ++i) {

Ptr<ConstantVelocityMobilityModel> mob = ueNodes.Get(i)->GetObject<ConstantVelocityMobilityModel>();

mob->SetPosition(Vector(i * 10.0, 0.0, 0.0));  // Initial positions

mob->SetVelocity(Vector(5.0, 0.0, 0.0));       // Moving with a speed of 5 m/s

}

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

mobility.Install(gNbNodes);

Step 5: Configure 5G Slicing

1. Enable Slicing in the Core Network:
   • Build a several network slices by distinct QoS profiles:

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

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

lteHelper->SetEpcHelper(epcHelper);

epcHelper->SetAttribute(“SliceSupport”, BooleanValue(true));

epcHelper->AddSlice(“eMBB”, 100000, 10);  // High bandwidth, normal latency

epcHelper->AddSlice(“URLLC”, 50000, 1);   // Low latency, reliable

epcHelper->AddSlice(“mMTC”, 20000, 100);  // High connectivity, low bandwidth

1. Assign Slices to UEs:
   • Plan the UEs for detailed slices according to their traffic type:

for (uint32_t i = 0; i < ueNodes.GetN(); ++i) {

if (i < 4) {

lteHelper->AssignSlice(ueNodes.Get(i), “eMBB”);

} else if (i < 8) {

lteHelper->AssignSlice(ueNodes.Get(i), “URLLC”);

} else {

lteHelper->AssignSlice(ueNodes.Get(i), “mMTC”);

}

}

1. Install Devices:
   • Assign the UEs to gNBs and setting the IP stack:

NetDeviceContainer gNbDevices = lteHelper->InstallEnbDevice(gNbNodes);

NetDeviceContainer ueDevices = lteHelper->InstallUeDevice(ueNodes);

InternetStackHelper internet;

internet.Install(ueNodes);

Ipv4InterfaceContainer ueIpInterfaces = epcHelper->AssignUeIpv4Address(NetDeviceContainer(ueDevices));

for (uint32_t i = 0; i < ueNodes.GetN(); ++i) {

lteHelper->Attach(ueDevices.Get(i), gNbDevices.Get(0));  // Attach to the first gNB

}

Step 6: Add Traffic Applications

1. Simulate eMBB Traffic:
   • It replicate for high-bandwidth applications for sample video streaming:

ApplicationContainer embbApps;

UdpClientHelper videoClient(ueIpInterfaces.GetAddress(0), 9);

videoClient.SetAttribute(“Interval”, TimeValue(Seconds(0.01)));  // 10 ms

videoClient.SetAttribute(“PacketSize”, UintegerValue(1024));    // 1 KB

embbApps.Add(videoClient.Install(ueNodes.Get(0)));

1. Simulate URLLC Traffic:
   • It replicate the URLLC congestion for low-latency applications for instance real-time control:

ApplicationContainer urllcApps;

UdpClientHelper controlClient(ueIpInterfaces.GetAddress(4), 10);

controlClient.SetAttribute(“Interval”, TimeValue(Seconds(0.001)));  // 1 ms

controlClient.SetAttribute(“PacketSize”, UintegerValue(512));      // 512 B

urllcApps.Add(controlClient.Install(ueNodes.Get(4)));

1. Simulate mMTC Traffic:
   • Low-bandwidth, high-connection applications for sample IoT sensors:

ApplicationContainer mmtcApps;

UdpClientHelper sensorClient(ueIpInterfaces.GetAddress(8), 11);

sensorClient.SetAttribute(“Interval”, TimeValue(Seconds(1.0)));  // 1 packet per second

sensorClient.SetAttribute(“PacketSize”, UintegerValue(256));    // 256 B

mmtcApps.Add(sensorClient.Install(ueNodes.Get(8)));

Step 7: Enable Tracing and Monitoring

1. Enable Tracing:
   • Seizure the congestion and network movements:

lteHelper->EnableTraces();

1. Enable FlowMonitor:
   • Follow on the network performance:

FlowMonitorHelper flowMonitor;

Ptr<FlowMonitor> monitor = flowMonitor.InstallAll();

1. Enable PCAP:
   • Seizure for packets analysis:

p2p.EnablePcapAll(“5g-slicing”);

Step 8: Run the Simulation

1. Schedule and Start Simulation:
   • Express the replication of duration and implement:

Simulator::Stop(Seconds(10.0));

Simulator::Run();

Simulator::Destroy();

1. Analyze Results:
   • Estimate the slice-specific parameter metrics such as throughput, latency, and reliability.

Step 9: Example: Simple 5G Network Slicing Simulation

Here’s a minimal sample script:

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

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

#include “ns3/lte-module.h”

using namespace ns3;

int main() {

NodeContainer gNbNodes, ueNodes;

gNbNodes.Create(1);

ueNodes.Create(6);

MobilityHelper mobility;

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

mobility.Install(gNbNodes);

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

mobility.Install(ueNodes);

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

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

lteHelper->SetEpcHelper(epcHelper);

NetDeviceContainer gNbDevices = lteHelper->InstallEnbDevice(gNbNodes);

NetDeviceContainer ueDevices = lteHelper->InstallUeDevice(ueNodes);

InternetStackHelper internet;

internet.Install(ueNodes);

epcHelper->AssignUeIpv4Address(ueDevices);

for (uint32_t i = 0; i < ueNodes.GetN(); ++i) {

lteHelper->Attach(ueDevices.Get(i), gNbDevices.Get(0));

}

Simulator::Stop(Seconds(10.0));

Simulator::Run();

Simulator::Destroy();

return 0;

}

Step 10: Extend and Customize

1. Dynamic Slice Management:
   • Execute the procedures for dynamic resource allocation with slices.
2. Performance Metrics:
   • Calculate the performance of parameter metrices slice-specific KPIs such as latency, jitter, reliability.
3. Inter-Slice Isolation:
   • Assure the QoS isolation among slices for below the high traffic.

Overall, we clearly demonstrate how the 5G network slicing will implement using the ns3 tool that has creates the network then configure the simulation and assess the high traffic across the network. Any queries related to this project will be clarified in a different manual.