How to Start On Demand Protocol Projects using OMNeT++

To create a project has involves the on-demand routing protocols using OMNeT++, we can observe the structured methods for depending on whether we need to uses an existing on-demand protocol or implement your own. On-demand protocols like AODV (Ad hoc On-Demand Distance Vector), DSR (Dynamic Source Routing), or TORA (Temporally Ordered Routing Algorithm) are commonly used in mobile ad hoc networks (MANETs) and wireless sensor networks (WSNs) in which the routes are creates only when required for reducing the overhead.

Here’s how to get started:

Steps to Start On-Demand Protocol Projects using OMNeT++

  1. Install OMNeT++ and INET Framework

Before the diving into any project, we will require the install OMNeT++ and the INET Framework, as this offers the foundation for network replication and involves the multiple networking models and protocols such as including on-demand routing protocols.

Steps to Install OMNeT++:

  1. Download OMNeT++ from the official website:
  2. Observe the installation demonstrative for your operating system like as Windows, macOS, or Linux.
  3. Configure the environment variables and compile OMNeT++:
    • Arranged the Linux/macOS, we will use the create commands.
    • On Windows for observe the offer Visual Studio-based instructions.

Steps to Install INET Framework:

  1. Clone the INET Framework repository:

git clone https://github.com/inet-framework/inet.git

cd inet

  1. Build INET by running:

./configure

make

  1. Link INET with OMNeT++ so you can assign the INET models and protocols in your replications.
  1. Understand On-Demand Protocols

On-demand routing protocols only create the routes when data require the forwarding and unlike the proactive protocols which handles the routes continuously. Some well-known on-demand routing protocols are:

  • AODV (Ad hoc On-Demand Distance Vector): A reactive protocol which discovers the routes on-demand through flooding Route Request (RREQ) messages and using Route Reply (RREP) messages.
  • DSR (Dynamic Source Routing): A reactive protocol which uses source routing we detect a path from source to destination.
  • TORA (Temporally Ordered Routing Algorithm): A highly adaptive on-demand protocol for TORA.
  1. Check for Existing Implementations in OMNeT++

OMNeT++ comes through different protocols already executed has including AODV and DSDV (proactive). Checked if the protocol we need to use the previously part of INET or accessible through third-party repositories.

  • AODV is involves the INET as a sample of an on-demand routing protocol.
  • DSR and TORA are not directly accessible in INET nevertheless could be executed terms on available models.

we can detect the AODV estimation for INET through searching for it in the INET codebase, that will allow the alter or extend it.

  1. Create the Network Topology Using NED Files

Once you have decided on the protocol such as AODV we can create a NED file we describe the network topology for the replication.

Example NED File for AODV Network:

This sample setting a simple ad hoc network through five mobile nodes using AODV as the routing protocol:

network AdHocNetwork {

submodules:

node1: AdHocNode {

@display(“p=100,100”);

}

node2: AdHocNode {

@display(“p=200,100”);

}

node3: AdHocNode {

@display(“p=300,100”);

}

node4: AdHocNode {

@display(“p=200,200”);

}

node5: AdHocNode {

@display(“p=300,200”);

}

connections:

node1.wlan++ <–> node2.wlan++;

node2.wlan++ <–> node3.wlan++;

node3.wlan++ <–> node4.wlan++;

node4.wlan++ <–> node5.wlan++;

}

In this example:

  • Five nodes are described the every through a wireless LAN interface such as wlan.
  • The nodes are connected to every other using wireless connection wlan++.
  • We can alter the positions and connections as required the form of larger or more complex topology.
  1. Configure the Simulation Using INI Files

Once your network is setting, we require a set up different replication parameters such as protocols, node parameters, statistics collection in an INI file.

Example INI File for AODV Network:

[General]

network = AdHocNetwork

sim-time-limit = 100s

# Set AODV as the routing protocol for all nodes

*.node1.routingProtocol = “AODV”

*.node2.routingProtocol = “AODV”

*.node3.routingProtocol = “AODV”

*.node4.routingProtocol = “AODV”

*.node5.routingProtocol = “AODV”

# Enable packet tracing and statistics collection

*.vector-recording = true

*.scalar-recording = true

*.record-eventlog = true

# Wireless parameters

*.node*.wlan.transmitPower = 0.01W

*.node*.wlan.transmitRange = 250m

Explanation of parameters:

  • Routing Protocol: Requires that AODV is the routing protocol for overall nodes in the network.
  • Simulation Time: Configure the replication for time limit to 100 seconds.
  • Wireless Parameters: Setting the wireless parameters like as transmission power and range.
  1. Implement or Modify the Protocol Logic

If you are using an existing protocol such as AODV we can skip this step. However, if you require the execution of or alter a protocol such as DSR, TORA, or any other, we will need to write C++ code to describe the behaviour.

For AODV or another existing protocol:

  • The protocol will already have classes and functions that maintains the route discovery, route handling and other aspects.
  • we can alter the classes to fit the networks requires.

For a custom protocol, you will need to:

  1. Define the message types such as RREQ, RREP for AODV in C++.
  2. Implement the logic we determine and handling the routes on-demand of handle packet forwarding and deal with network topology modification.
  3. Create routing tables for every node for bring up-to-date them dynamically based on the discovery of routes.
  1. Build and Run the Simulation

Once the network topology for setting the protocol logic are in place, we can proceed the create a process for the replication.

Building the Project:

  • In the OMNeT++ IDE click on Build Project we compile the project.
  • On the command line, we can use:

make

Running the Simulation:

  • We process the replication in Cmdenv (command-line) mode, use:

./run -u Cmdenv

  • Alternatively, we run the Tkenv (graphical mode) for visual simulation:

./run -u Tkenv

  1. Monitor and Analyze Results

After process the replication we can analyse the results using:

  • Scalar outputs: This will give we overall statistics such as packet delivery ratio, throughput and delay.
  • Vector outputs: We can plot the brief data like as the number of packets sent/received through the individual nodes over time.
  • Event logs: Intended for debugging and understanding the flow for packets in the network.

We can use the OMNeT++ plotter or external tools like Python and MATLAB we process the results and visualize them in more detail.

  1. Extend and Experiment

Once the basic replication of process we can research through different parameters metrices and environment:

  • Increase network size: Validate on how the protocol scales through further nodes.
  • Test mobility: Enhance the mobility models such as Random Waypoint or Gauss-Markov we replicate the node movement.
  • Analyze energy efficiency: Execute or use an energy model we replicate the energy usage of every node.
  • Compare protocols: Compared the performance of AODV through other on-demand protocols such as DSR and TORA in terms of latency, packet delivery ratio, and scalability.
  1. Customize and Implement New Features

If we require to develop your own on-demand protocol we can extend or alter the replication:

  • Add new routing metrics: Execute the further features like as quality of service (QoS), load balancing or energy-aware routing.
  • Introduce more complex mobility models: Execute the alter mobility models that replicate the real-world action for designs.

Summary

To start an on-demand protocol project using OMNeT++, follow these general steps:

  1. Install OMNeT++ and the INET Framework.
  2. Select a previous on-demand protocol such as AODV or estimation the own.
  3. Describe the network topology with NED files.
  4. Setting the replication for parameters metrices in the INI file.
  5. Generate and process the replication.
  6. Examine the replication for outcomes through scalar and vector outputs.
  7. Research through various setting and alter the replication of research requires.

By following this guide, you’ll be able to create simulations for on-demand routing.

In the conclusion, we deliberated the on-demand protocol procedures, process, to analysis the performance in OMNeT++ tool and also provide the full support for any other information about on-demand protocol.

Get in touch with phdprojects.org for help with your On-Demand Protocol Projects using OMNeT++. If you have any questions, just let us know the details of your project!