To implement the QoS-aware clustering in ns3 has encompasses to generate a network that the nodes where grouped into clusters and it interact among those clusters inside them that is handled based on Quality of Service (QoS) requirements. This is usually contains to setup the clustering protocol, configuring QoS parameters, and handles the interaction among cluster heads and member nodes.
The given below is the detailed procedure on how to implement the QoS-aware Clustering in ns3:
Step-by-Step Implementation:
Step 1: Install ns3
Make sure ns3 is installed in the computer.
Step 2: Set Up the Simulation Environment
Create a new simulation script or modify an existing one. This script will define the network topology, nodes, and communication channels.
Step 3: Define Network Topology
Create nodes and define the network topology, focusing on the creation of clusters. Here’s an example of setting up a basic network topology with clusters.
#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/flow-monitor-module.h”
#include “ns3/traffic-control-module.h”
using namespace ns3;
NS_LOG_COMPONENT_DEFINE (“QoSAwareClusteringExample”);
int main (int argc, char *argv[])
{
// Enable logging
LogComponentEnable (“QoSAwareClusteringExample”, LOG_LEVEL_INFO);
// Create nodes
NodeContainer nodes;
nodes.Create (10); // Create 10 nodes
// Set up point-to-point links
PointToPointHelper pointToPoint;
pointToPoint.SetDeviceAttribute (“DataRate”, StringValue (“10Mbps”));
pointToPoint.SetChannelAttribute (“Delay”, StringValue (“2ms”));
NetDeviceContainer devices;
devices = pointToPoint.Install (nodes.Get(0), nodes.Get(1));
devices = pointToPoint.Install (nodes.Get(1), nodes.Get(2));
devices = pointToPoint.Install (nodes.Get(2), nodes.Get(3));
devices = pointToPoint.Install (nodes.Get(3), nodes.Get(4));
devices = pointToPoint.Install (nodes.Get(4), nodes.Get(5));
devices = pointToPoint.Install (nodes.Get(5), nodes.Get(6));
devices = pointToPoint.Install (nodes.Get(6), nodes.Get(7));
devices = pointToPoint.Install (nodes.Get(7), nodes.Get(8));
devices = pointToPoint.Install (nodes.Get(8), nodes.Get(9));
// Install Internet stack
InternetStackHelper stack;
stack.Install (nodes);
// Assign IP addresses
Ipv4AddressHelper address;
address.SetBase (“10.1.1.0”, “255.255.255.0”);
Ipv4InterfaceContainer interfaces = address.Assign (devices);
// Set up mobility model
MobilityHelper mobility;
mobility.SetPositionAllocator (“ns3::GridPositionAllocator”,
“MinX”, DoubleValue (0.0),
“MinY”, DoubleValue (0.0),
“DeltaX”, DoubleValue (5.0),
“DeltaY”, DoubleValue (10.0),
“GridWidth”, UintegerValue (3),
“LayoutType”, StringValue (“RowFirst”));
mobility.SetMobilityModel (“ns3::ConstantPositionMobilityModel”);
mobility.Install (nodes);
// Set up QoS for clustering
TrafficControlHelper tch;
tch.SetRootQueueDisc (“ns3::FifoQueueDisc”);
tch.Install (devices);
// Create and configure traffic classes
Ptr<DiffServ> diffServ = CreateObject<DiffServ> ();
diffServ->AddQueueDisc (devices.Get (0)->GetObject<PointToPointNetDevice> ()->GetQueue ());
Ptr<TrafficClass> voiceClass = CreateObject<TrafficClass> ();
voiceClass->SetTrafficClass (1);
voiceClass->SetTrafficClassMask (0x01);
voiceClass->SetTrafficClassQueue (0);
Ptr<TrafficClass> videoClass = CreateObject<TrafficClass> ();
videoClass->SetTrafficClass (2);
videoClass->SetTrafficClassMask (0x02);
videoClass->SetTrafficClassQueue (1);
Ptr<TrafficClass> bestEffortClass = CreateObject<TrafficClass> ();
bestEffortClass->SetTrafficClass (3);
bestEffortClass->SetTrafficClassMask (0x03);
bestEffortClass->SetTrafficClassQueue (2);
diffServ->AddTrafficClass (voiceClass);
diffServ->AddTrafficClass (videoClass);
diffServ->AddTrafficClass (bestEffortClass);
// Install and start applications on nodes
uint16_t port = 8080;
Address serverAddress (InetSocketAddress (interfaces.GetAddress (1), port));
UdpServerHelper server (port);
ApplicationContainer serverApps = server.Install (nodes.Get (1));
serverApps.Start (Seconds (1.0));
serverApps.Stop (Seconds (10.0));
UdpClientHelper client (serverAddress);
client.SetAttribute (“MaxPackets”, UintegerValue (1000));
client.SetAttribute (“Interval”, TimeValue (Seconds (0.01)));
client.SetAttribute (“PacketSize”, UintegerValue (1024));
ApplicationContainer clientApps = client.Install (nodes.Get (0));
clientApps.Start (Seconds (2.0));
clientApps.Stop (Seconds (10.0));
// Run the simulation
Simulator::Stop (Seconds (10.0));
Simulator::Run ();
Simulator::Destroy ();
return 0;
}
Step 4: Configure Traffic Classes and DiffServ
In the script above, we set up DiffServ with three traffic classes: voice, video, and best effort. Each traffic class is assigned a different priority and mapped to a different queue.
Step 5: Set Up Traffic Generation
We set up a UDP server on node 1 and a UDP client on node 0 to generate traffic. The traffic is configured to simulate different types of traffic with different QoS requirements.
Step 6: Run the Simulation
Compile and run your simulation script to see the effect of QoS-aware clustering on network performance. The output will include statistics such as the number of packets transmitted and received, throughput, and any packet loss.
Overall, we analyse the performance for QoS-aware clustering on network by using the transmitted and received packets that were grouped into clusters then it validate the results using the ns3 tool. We will support and provide the elaborate insights regarding the QoS-aware clustering.
We provide you with a range of project ideas and performance analysis related to Network QoS aware Clustering in the ns3 tool. If you are interested in carrying out a comparative analysis or need assistance with project execution, please feel free to reach out to us. We would be happy to guide you further. Additionally, sharing your Quality of Service (QoS) requirements with us will enable us to offer you the best support possible.