How to Start FSR Protocol Projects using OMNeT++

To stimulate a project for replicate the FSR (Fisheye State Routing) protocol using OMNeT++, we will require an estimate or extend a previous routing protocol to replicate the FSR, which is generally used in wireless ad-hoc and sensor networks. FSR is based on link-state routing and decrease the overhead of routing table for modify through using the concept of fisheye routing, in which nodes are handle the brief information about their instant neighbours and less information as the distance increases.

Here is a step-by-step guide to creating an FSR protocol project in OMNeT++.

Steps to Start FSR Protocol Projects using OMNeT++

  1. Set Up OMNeT++ and INET Framework

Download OMNeT++:

  • If we have not previous, download and install OMNeT++ from the official OMNeT++ website.
  • Follow the installation procedures for your operating system like as Windows, Linux, macOS.

Install the INET Framework:

  • The INET Framework offers the models for different network protocols like as including routing protocols like OSPF, RIP, etc. and we will require to replicate a networking.
  • Clone or download the INET framework from the INET GitHub repository.
  • Next downloading, create a connection INET to your OMNeT++ installation following the INET compilation procedures.
  1. Understand the FSR Protocol

Fisheye State Routing (FSR) is a link-state protocol that decrease the routing overhead in large networks through handling the brief data for neighbouring nodes and regularly less explanation the data for distant nodes. The important aspects of FSR has includes they are:

  • Fisheye Principle: Nodes are handling the more frequent bring up-to-date and complete data about their direct neighbours such as low-hop distance and decrease the frequency of bring up-to-date and the level of detail for nodes farther away such as high-hop distance.
  • Routing Information Exchange: FSR periodically modified the describe the information among neighbouring nodes we handling an accurate routing table.
  • Hierarchical Update: Nodes closer to the destination node get further precise routing information, although distant nodes get approximate data.
  1. Create a New OMNeT++ Project for FSR
  1. Open OMNeT++ IDE and create a new project:
    • Go to File > New > OMNeT++ Project.
    • Name your project such as FSRProtocolProject.
  2. Add INET Framework to Your Project:
    • Right-click on the project and select Properties > Project References.
    • Checked the INET Framework to connection to your project.
  1. Design the Network Topology

Ensuing, we need to describe the network topology for your FSR replication. The network topology typically has involves the nodes (hosts) that modify the routing information.

Example of a Simple Network Topology (in ned file):

network FSRNetwork {

submodules:

router1: StandardHost {

@display(“p=100,100”);

}

router2: StandardHost {

@display(“p=200,100”);

}

router3: StandardHost {

@display(“p=300,100”);

}

router4: StandardHost {

@display(“p=200,200”);

}

connections allowunconnected:

router1.pppg++ <–> router2.pppg++;

router2.pppg++ <–> router3.pppg++;

router2.pppg++ <–> router4.pppg++;

}

This state a simple topology of four routers. Every router is a StandardHost connected by point-to-point connections.

  1. Implement FSR Protocol in OMNeT++

OMNeT++ cannot come through a predefined execution of FSR, so we will require an execution of FSR protocol yourself. We can extend or alter the previous routing protocols in OMNeT++ such as OSPF, RIP, or AODV we estimate the FSR features.

Steps to Implement FSR:

  1. Create a New Routing Protocol Module:
    • Build a new module or extend a previous link-state routing protocol for sample OSPF or RIP in OMNeT++.
    • The module will handle the link-state advertisements (LSAs) and continue the routing tables through the FSR-specific adjustments.
  2. Define FSR Characteristics:
    • Detailed Neighbour Information: For nodes that are close such as one hop away, store detailed information.
    • Reduced Information for Distant Nodes: For nodes that are passed away, store decrease the frequent or approximate data.
    • Fisheye Mechanism: Execute the fisheye mechanism, in which means decrease the size of the data as the distance such as in hops increases.
  3. Packet Structure: Define a packet structure for the link-state updates:
    • Neighbour Information: Distance or hop count for node address and Connection quality for the information.
    • Routing Table: Accesses for reachable nodes through various levels of detail based on the fisheye principle.
  4. Implement Link-State Update:
    • Used the execution process for timers to periodically transmit bring up-to-date to neighbouring nodes.
    • Every node will bring up-to-date its routing table when it receives a link-state packet (LSP) from a neighbour.
  5. Packet Processing: Execute the logic we run the incoming link-state packets and bring up-to-date the routing table according to the fisheye functionalities.
  1. Configure the Network Parameters

In your omnetpp.ini file, we require a setting the IPv6 (or IPv4) address configuration, routing protocol settings, and simulation parameters.

Example omnetpp.ini Configuration for FSR:

[General]

network = FSRNetwork

sim-time-limit = 100s

# Enable FSR on all routers

*.router1.routingProtocol = “FSR”

*.router2.routingProtocol = “FSR”

*.router3.routingProtocol = “FSR”

*.router4.routingProtocol = “FSR”

# Routing protocol parameters (e.g., update interval)

*.router1.fsr.updateInterval = 1s

*.router2.fsr.updateInterval = 1s

*.router3.fsr.updateInterval = 1s

*.router4.fsr.updateInterval = 1s

# Configure Link-State Update Frequency (FSR Specific)

*.router1.fsr.fisheyeInterval = 5s

*.router2.fsr.fisheyeInterval = 5s

In this configuration:

  • Every router is setting to use the FSR protocol.
  • The updateInterval and fisheyeInterval control on how often the routing information is modified on how the frequently the fisheye mechanism implementation.
  1. Implement Simulation Logic
  1. Routing Table Updates:
    • Execute the logic to update the routing tables based on the incoming link-state advertisements (LSAs).
    • The fisheye mechanism assure which only brief information is modified by neighbouring nodes and minimum frequent or abstract bring up-to-date are alter the distant nodes.
  2. Performance Evaluation:
    • Gather the performance metrics such as the number of packets alter, the routing table size, and the convergence time.
    • Estimate on how the efficient FSR is in terms of overhead and routing accuracy associates on traditional link-state protocols such as OSPF.
  1. Run the Simulation
  • Used the process for OMNeT++ IDE to run the replication. we can use Qtenv or Tkenv such as graphical environment we display the network behaviour.
  • Follow on the link-state exchanges, the FSR updates, and the routing table.

Debugging Output:

We can ensure the debug communication in your omnetpp.ini to describe the modification variations:

*.router1.fsr.debug = true

*.router2.fsr.debug = true

  1. Analyze and Extend the Simulation
  1. Performance Metrics:
    • Measure key metrics such as:
      • Routing Table Size
      • Control Packet Overhead
      • Convergence Time
      • Packet Delivery Ratio
  2. Extend the Project:
    • Mobile Nodes: Improve the mobility to the nodes such as using Random Waypoint mobility we show on how the FSR handles network variations dynamically.
    • Dynamic Topology: Replicate the topologies through varying node densities and follow on how the fisheye mechanism alter the routing information.
  1. Documentation and Reporting

Document the following:

  • Network Topology: State the network and contains the nodes.
  • FSR Protocol: Brief on how the fisheye state routing techniques works in your replication.
  • Results: Description key outcomes from the replication, like as routing overhead and convergence time.

The given above is the fundamental approach that was illustrated with sample coding for Fisheye State Routing protocol project that were simulated across the OMNET++ environment. In case more queries are needed we will use another manual.

The evaluation performance assessments are conducted by our team. We are committed to offering tailored support to meet your specific needs. For individuals seeking expert solutions to enhance project performance, we guarantee outstanding results. To initiate your FSR Protocol Projects utilizing OMNeT++, please reach out to phdprojects.org. We also specialize in managing wireless ad-hoc and sensor networks.