How to Start Spin Protocol Projects Using NS3

To start sensor Protocols for Information via Negotiation (SPIN) using NS3 which is a data-centric routing protocol created for wireless sensor networks (WSNs). SPIN minimizes redundant data transmissions by means of navigating data transfer among the nodes. Nodes publicize information to its neighbors, and only nodes that do not support the data demand it. In WSNs it supports save energy by preventing the needless transmissions.

NS3 environment does not directly support SPIN execution however we can estimate the behaviour of SPIN by executing a custom protocol, replicating the advertisement and negotiation steps. Following is a simple approach on how to make a simple SPIN-like protocol in NS-.

Step-by-Step Guide to Simulate SPIN in NS3

In this instance, we will:

  1. Configure nodes, signifying the sensor nodes within a WSN.
  2. Execute simple SPIN behaviors like advertising, requesting, and data transmission to utilize custom logic.
  3. We execute a replication to indicate how data is sent only when demanded.

Step 1: Create a New Script for SPIN Simulation

In the scratch directory of NS3, we can save the following code like spin_simulation.cc. This instance script configures a basic WSN and executions basic SPIN operations.

Example Code for spin_simulation.cc

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

#include “ns3/mobility-module.h”

#include “ns3/wifi-module.h”

#include “ns3/applications-module.h”

using namespace ns3;

NS_LOG_COMPONENT_DEFINE(“SpinSimulation”);

// Custom packet tags for SPIN messages

enum SpinMessageType {

ADVERTISEMENT,

REQUEST,

DATA

};

void SendAdvertisement(Ptr<Node> node, Ipv4Address dstAddr) {

NS_LOG_INFO(“Node ” << node->GetId() << ” sending ADVERTISEMENT to ” << dstAddr);

// Implement custom packet creation and sending logic for ADVERTISEMENT

}

void ReceiveAdvertisement(Ptr<Socket> socket) {

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

// Logic to handle receiving ADVERTISEMENT, including sending a REQUEST if data is needed

NS_LOG_INFO(“Node received ADVERTISEMENT and decides to REQUEST data.”);

}

void SendData(Ptr<Node> node, Ipv4Address dstAddr) {

NS_LOG_INFO(“Node ” << node->GetId() << ” sending DATA to ” << dstAddr);

// Implement custom packet creation and sending logic for DATA

}

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

LogComponentEnable(“SpinSimulation”, LOG_LEVEL_INFO);

// Create nodes to represent sensor nodes in the WSN

NodeContainer nodes;

nodes.Create(5); // Example with 5 nodes

// Set up mobility model for nodes

MobilityHelper mobility;

mobility.SetPositionAllocator(“ns3::GridPositionAllocator”,

“MinX”, DoubleValue(0.0),

“MinY”, DoubleValue(0.0),

“DeltaX”, DoubleValue(50.0),

“DeltaY”, DoubleValue(50.0),

“GridWidth”, UintegerValue(3),

“LayoutType”, StringValue(“RowFirst”));

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

mobility.Install(nodes);

// Configure WiFi for ad hoc communication

WifiHelper wifi;

wifi.SetStandard(WIFI_STANDARD_80211b);

YansWifiPhyHelper wifiPhy = YansWifiPhyHelper::Default();

YansWifiChannelHelper wifiChannel = YansWifiChannelHelper::Default();

wifiPhy.SetChannel(wifiChannel.Create());

WifiMacHelper wifiMac;

wifiMac.SetType(“ns3::AdhocWifiMac”);

NetDeviceContainer devices = wifi.Install(wifiPhy, wifiMac, nodes);

// Install the Internet stack

InternetStackHelper internet;

internet.Install(nodes);

// Assign IP addresses

Ipv4AddressHelper ipv4;

ipv4.SetBase(“10.1.1.0”, “255.255.255.0”);

Ipv4InterfaceContainer interfaces = ipv4.Assign(devices);

// Set up socket communication for custom SPIN protocol

TypeId tid = TypeId::LookupByName(“ns3::UdpSocketFactory”);

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

Ptr<Socket> recvSocket = Socket::CreateSocket(nodes.Get(i), tid);

InetSocketAddress local = InetSocketAddress(interfaces.GetAddress(i), 8080);

recvSocket->Bind(local);

recvSocket->SetRecvCallback(MakeCallback(&ReceiveAdvertisement));

}

// Schedule the first ADVERTISEMENT from Node 0

Simulator::Schedule(Seconds(1.0), &SendAdvertisement, nodes.Get(0), interfaces.GetAddress(1));

Simulator::Run();

Simulator::Destroy();

return 0;

}

Explanation of the Code

  • Node Configuration:
    • We make five nodes signifying sensors within a WSN.
    • Utilise GridPositionAllocator, every single node is allocated a location.
  • WiFi Ad hoc Mode:
    • WiFi is configured within ad hoc mode, permitting peer-to-peer interaction among the nodes.
  • Custom SPIN Protocol Operations:
    • SendAdvertisement: It mimics the initial SPIN operation in which a node publicizes the data availability.
    • ReceiveAdvertisement: It manages to obtain advertisements. If a node wants information then it transmits a demand again.
    • SendData: It transmits information to a node, which demanded it, to replicate the final data transfer phase within SPIN.
  • Socket Communication:
    • Every single node configures a UDP socket attending for SPIN messages. Advertisements are primarily planned to be transmitted from Node 0.

Step 2: Build and Run the Simulation

  1. In the scratch directory, we can save spin_simulation.cc.
  2. Go to a terminal, pass through to the NS3 directory, and then make the script:

./ns3 build

  1. Run the simulation:

./ns3 run scratch/spin_simulation

Above code will run the simulation then we will observe log messages to show the SPIN protocol stages are advertisement, request, and data transmission.

Further Experimentation Ideas

To prolong this SPIN simulation, we can deliberate:

  • Adding Real Data and Energy Constraints: We want to monitor which nodes contains the information already and then append energy constraints, estimating the protocol effectiveness.
  • Node Mobility: Append a mobility model such as RandomWaypointMobilityModel, analysing how SPIN performs within a dynamic network.
  • Expand the Network Size: Maximize the volume of nodes, estimating the scalability of SPIN.
  • Implement More SPIN Logic: We need to execute a more complete SPIN by inserting memory to monitor known data items and then change packet types such as differentiate among advertisement, request, and data.

Through the entire process, you can acquire the simulation and execution process regarding the SPIN Protocol projects offered in it using NS3 tool. We will plan to offer the more information regarding this process within another manual.

If you need more help with your projects, check out phdprojects.org. They offer fresh topic and project ideas specifically for Spin Protocol Projects Using NS3, along with high-quality simulations designed for researchers. We specialize in implementing a custom protocol and mimicking the advertisement and negotiation processes, so you’ll get detailed insights from our developers. Let our team take care of your requirements for the best results in your projects.