To simulate the Clusterhead Gateway Switch Routing (CGSR) protocol using OMNeT++, which contains configuring a mobile ad hoc network (MANET) in which nodes are organized into clusters. In CGSR, clusters have designated cluster heads, which handle communication in the cluster and enable inter-cluster communication via gateways. Now, we share general method on how we can replicate CGSR in OMNeT++:
Steps to Simulate CGSR Protocol in OMNeT++
- Install OMNeT++ and the INET Framework
- Configure OMNeT++ together with the INET framework that offers modules for wireless networks and ad hoc routing.
- Because CGSR is a specialized protocol for clustered MANETs, we may require to execute custom modules or use extensions to support the clustering and routing functionalities particular to CGSR.
- Define the CGSR Protocol and Network Scenario
- The CGSR protocol categorizes nodes into clusters in which each cluster has a cluster head. Cluster heads handle local communication and connect with other clusters via gateway nodes.
- Describe the scenario as a mobile ad hoc network with clustering, suitable for environments such as disaster recovery or military applications in which nodes are mobile and want to communicate in and among clusters.
- Set up the Network Topology with Clusters
- Set up a network topology with mobile nodes, which form clusters. Identify the amount of clusters and allocate nodes to each cluster.
- Assign cluster heads for each cluster. Cluster heads can be selected according to the criteria such as node ID or signal strength. We may set particular nodes as gateways to enable inter-cluster communication.
- Implement or Configure the CGSR Protocol
- Cluster Formation:
- Execute a mechanism for clustering nodes and allocating cluster heads. Nodes within each cluster should be able to communicate directly with their cluster head.
- Configure a periodic broadcast system for cluster heads to proclaim their presence, enabling nodes to join or switch clusters actively.
- Intra-Cluster Routing:
- Within each cluster, set up routing thus that non-head nodes are forward packets to the cluster head that then directs traffic within the cluster.
- Inter-Cluster Routing via Gateways:
- Execute inter-cluster communication by permitting cluster heads to route packets via designated gateways. Gateways enable communication among cluster heads of adjacent clusters.
- Routing Table Maintenance:
- In CGSR, each node conserves a routing table with routes to cluster heads. Set up the nodes to update their tables are occasionally and upon topology changes.
- Generate Network Traffic and Applications
- We can utilize INET’s traffic generation modules to mimic several traffic types, like:
- Constant Bit Rate (CBR): For steady intra-cluster traffic.
- Event-Driven Traffic: For sporadic inter-cluster traffic, helpful to experiment gateway routing efficiency.
- Set up application layer protocols, like messaging or file sharing that need routing within and among the clusters.
- Simulate Node Mobility and Dynamic Clustering
- Mobility Models: We can be used mobility models such as RandomWaypoint or Gauss-Markov to mimic node movement. It will influence cluster membership and need the cluster heads and gateways to handle route updates dynamically.
- Cluster Reformation: As nodes are move, mimic cluster reformation in which nodes may join new clusters, switch cluster heads, or become new cluster heads rely on movement and signal strength.
- Define Performance Metrics for CGSR
- Gather parameters to estimate the CGSR’s performance in a dynamic, clustered environment:
- Cluster Stability: Compute the frequency of cluster head alters and cluster reformation events.
- Packet Delivery Ratio: The ratio of effectively delivered packets to the total transmitted packets, reflecting the protocol’s reliability.
- Routing Overhead: The amount of control messages are used for cluster maintenance and routing updates.
- Latency: The average delay for intra- and inter-cluster communications that is critical for real-time applications.
- Run the Simulation and Collect Data
- Implement the simulation and observe cluster formation, node mobility, and routing behaviour. Gather information on packet delivery, control message overhead, and route updates.
- We can utilzie OMNeT++’s visualization and logging tools to monitor how the protocol conserves cluster membership and routes traffic in and among the clusters.
- Analyze Results and Optimize Protocol Parameters
- Analyse the parameters to estimate protocol effectiveness. Search for patterns in cluster stability, packet delivery, and routing overhead to detect any weaknesses.
- Fine-tune metrics such as cluster head election criteria, gateway selection, and update intervals to enhance the performance, reduce overhead, and develop cluster stability.
We have explained an essential method for CGSR protocol, was simulated and analysed then enhanced the parameters through the OMNeT++ simulation platform. We will provide further specifics as per your needs.
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