How to Implement Network Data fusion in ns3

To implement network data fusion in ns3, we need to create a scenario where data from multiple sources is combined or fused at a node. This is used in sensor networks, where data from multiple sensors is aggregated to deliver a more accurate or comprehensive view. Here are the steps to achieve this.

Steps for implementation

Step 1: Set up the simulation

Make sure that ns3 is installed in the computer. If not, install it.

Step 2: Create the network topology

Define the network topology with multiple sensor nodes and a central node that performs data fusion.

Step 3: Write the script

Here is an example script to create and configure a network topology to simulate network data fusion using ns3.

#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/wifi-module.h”

#include “ns3/udp-echo-helper.h”

using namespace ns3;

NS_LOG_COMPONENT_DEFINE (“NetworkDataFusionExample”);

class DataFusionApplication : public Application

{

public:

DataFusionApplication ();

virtual ~DataFusionApplication ();

void Setup (Ptr<Socket> socket, Address address);

protected:

virtual void StartApplication (void);

virtual void StopApplication (void);

private:

void ReceivePacket (Ptr<Socket> socket);

void ProcessData ();

Ptr<Socket> m_socket;

Address m_peerAddress;

std::vector<Ptr<Packet>> m_receivedPackets;

EventId m_processEvent;

};

DataFusionApplication::DataFusionApplication ()

{

}

DataFusionApplication::~DataFusionApplication ()

{

}

void

DataFusionApplication::Setup (Ptr<Socket> socket, Address address)

{

m_socket = socket;

m_peerAddress = address;

}

void

DataFusionApplication::StartApplication (void)

{

m_socket->Bind ();

m_socket->Connect (m_peerAddress);

m_socket->SetRecvCallback (MakeCallback (&DataFusionApplication::ReceivePacket, this));

m_processEvent = Simulator::Schedule (Seconds (1.0), &DataFusionApplication::ProcessData, this);

}

void

DataFusionApplication::StopApplication (void)

{

if (m_socket)

{

m_socket->Close ();

}

Simulator::Cancel (m_processEvent);

}

void

DataFusionApplication::ReceivePacket (Ptr<Socket> socket)

{

Ptr<Packet> packet = socket->Recv ();

m_receivedPackets.push_back (packet);

}

void

DataFusionApplication::ProcessData ()

{

NS_LOG_UNCOND (“Processing data from ” << m_receivedPackets.size () << ” packets”);

// Here you can add your data fusion logic

m_receivedPackets.clear ();

m_processEvent = Simulator::Schedule (Seconds (1.0), &DataFusionApplication::ProcessData, this);

}

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

{

CommandLine cmd;

cmd.Parse (argc, argv);

NodeContainer sensorNodes;

sensorNodes.Create (3);

NodeContainer fusionCenterNode;

fusionCenterNode.Create (1);

// Set up Wi-Fi network

WifiHelper wifi;

wifi.SetRemoteStationManager (“ns3::AarfWifiManager”);

YansWifiPhyHelper wifiPhy = YansWifiPhyHelper::Default ();

YansWifiChannelHelper wifiChannel = YansWifiChannelHelper::Default ();

wifiPhy.SetChannel (wifiChannel.Create ());

WifiMacHelper wifiMac;

Ssid ssid = Ssid (“ns-3-ssid”);

wifiMac.SetType (“ns3::StaWifiMac”,

“Ssid”, SsidValue (ssid),

“ActiveProbing”, BooleanValue (false));

NetDeviceContainer sensorDevices = wifi.Install (wifiPhy, wifiMac, sensorNodes);

wifiMac.SetType (“ns3::ApWifiMac”,

“Ssid”, SsidValue (ssid));

NetDeviceContainer fusionCenterDevice = wifi.Install (wifiPhy, wifiMac, fusionCenterNode);

// Install the Internet stack on the nodes

InternetStackHelper stack;

stack.Install (sensorNodes);

stack.Install (fusionCenterNode);

// Assign IP addresses to the devices

Ipv4AddressHelper address;

address.SetBase (“192.168.1.0”, “255.255.255.0”);

Ipv4InterfaceContainer sensorInterfaces = address.Assign (sensorDevices);

Ipv4InterfaceContainer fusionCenterInterface = address.Assign (fusionCenterDevice);

// Set up mobility

MobilityHelper mobility;

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

mobility.Install (sensorNodes);

mobility.Install (fusionCenterNode);

sensorNodes.Get (0)->GetObject<MobilityModel> ()->SetPosition (Vector (0.0, 0.0, 0.0));

sensorNodes.Get (1)->GetObject<MobilityModel> ()->SetPosition (Vector (10.0, 0.0, 0.0));

sensorNodes.Get (2)->GetObject<MobilityModel> ()->SetPosition (Vector (20.0, 0.0, 0.0));

fusionCenterNode.Get (0)->GetObject<MobilityModel> ()->SetPosition (Vector (30.0, 0.0, 0.0));

// Set up applications

uint16_t port = 12345;

UdpEchoServerHelper echoServer (port);

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

serverApps.Start (Seconds (1.0));

serverApps.Stop (Seconds (10.0));

UdpEchoClientHelper echoClient (fusionCenterInterface.GetAddress (0), port);

echoClient.SetAttribute (“MaxPackets”, UintegerValue (100));

echoClient.SetAttribute (“Interval”, TimeValue (MilliSeconds (100)));

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

ApplicationContainer clientApps = echoClient.Install (sensorNodes);

clientApps.Start (Seconds (2.0));

clientApps.Stop (Seconds (10.0));

// Set up data fusion application

Ptr<Socket> fusionCenterSocket = Socket::CreateSocket (fusionCenterNode.Get (0), TypeId::LookupByName (“ns3::UdpSocketFactory”));

Ptr<DataFusionApplication> fusionApp = CreateObject<DataFusionApplication> ();

fusionApp->Setup (fusionCenterSocket, InetSocketAddress (Ipv4Address::GetAny (), port));

fusionCenterNode.Get (0)->AddApplication (fusionApp);

fusionApp->SetStartTime (Seconds (1.0));

fusionApp->SetStopTime (Seconds (10.0));

// Enable packet capturing

wifiPhy.EnablePcap (“network-data-fusion”, sensorDevices.Get (0));

wifiPhy.EnablePcap (“network-data-fusion”, fusionCenterDevice.Get (0));

// Run simulation

Simulator::Stop (Seconds (10.0));

Simulator::Run ();

Simulator::Destroy ();

return 0;

}

Explanation:

1. Create Nodes:
   • Three sensor nodes are created with one fusion node.
2. Configure Wi-Fi Channel:
   • To set up the Wi-Fi channel, use WifiHelper. on the sensor nodes and on the fusion center node install Wi-Fi devices.
3. Install Internet Stack:
   • On all nodes, install the Internet stack.
4. Assign IP Addresses:
   • Assign IP addresses to the devices.
5. Set Up Mobility Models:
   • Set up a fixed positions for the nodes.
6. Set Up Applications:
   • On the fusion center node, create a UDP Echo server.
   • On the sensor nodes, create a UDP Echo client to generate traffic.
7. Set Up Data Fusion Application:
   • Define a DataFusionApplication class to receive packets, store them, and processe them periodically.
   • Configure and install the data fusion application on the fusion center node
8. Run Simulation:
   • Run the simulation.

Step 4: Build and Run the Simulation

Save the script as network-data-fusion.cc and build the script using waf, then run the simulation.

./waf configure

./waf build

./waf –run network-data-fusion

Step 5: Analyze the results

We can analyze the results by looking at the logs and any generated output files to verify the behavior of the network data fusion after the simulation.

On the whole, we had a performance analysis on the implementation of network data fusion by creating a scenario where data from multiple sources is combined or fused at a node. Also, we provide a detailed explanation on Network Data Fusion.

We conduct simulations on Network Data Fusion using ns3, establishing a framework where data from various sources is integrated at a node in accordance with your project requirements. Please send a message to ns3simulation.com for further assistance with the coding and implementation of Network Data Fusion in ns3.