To simulate the Hybrid Wireless Mesh Protocol (HWMP) using OPNET that requires including to make a wireless mesh network in which nodes utilize HWMP to transmit data. For IEEE 802.11s-based mesh networks, HWMP is the default routing protocol which aggregating reactive and proactive routing mechanisms to adjust to active network conditions. Following is a general approach on simulating HWMP in OPNET:
Steps to Simulate HWMP Protocol Projects in OPNET
- Initialize the Project and Define the Network Topology
- Create a New Project: Initially, we make a new project in OPNET that choosing a wireless mesh network topology to replicate the HWMP.
- Define the Simulation Area: Configure an area such as an urban or campus environment to denote the network space in which mesh nodes will function. This outline would assist multi-hop interaction that is crucial for HWMP.
- Add and Configure Mesh Nodes
- Place Mesh Nodes: Insert several wireless nodes through the replication area to make a mesh network. We probably require containing some stationary and some mobile nodes relying on the network situation.
- Assign Mobility Models: Allocate a mobility model like Random Waypoint to replicate the movement, for mobile nodes. In the mesh network environment, set up speed and pause times to deliberate the realistic conditions.
- Enable HWMP Protocol on Mesh Nodes
- Install HWMP on Each Node: If HWMP is obtainable in the OPNET library then set up every node utilizing HWMP like the routing protocol. HWMP functions in two primary modes:
- On-Demand (Reactive) Mode: Routes are determined as required to utilize Path Requests (PREQ) and Path Replies (PREP) messages.
- Proactive Mode: A root mesh node transmits occasionally proactive PREQs that launching routes within advance making sure that efficient data sending.
- Configure HWMP Parameters:
- Path Discovery Interval: It utilizing the proactive mode, describe the proactive path interval discovery.
- Root Node Setup: Set up an assigned root node if utilizing proactive routing. The root node will show periodic path discovery messages to maintain the routes updated.
- Route Timeout: For routes, configure the route timeout launched reactively to eliminate the stale routes after a time of inactivity.
- Define Traffic Models
- Application Traffic: Configure traffic flows among the nodes replicating real-world applications like VoIP, FTP, Video Streaming, or HTTP.
- Traffic Patterns: Describe both short-range and long-range interaction sets to experiment the HWMP’s routing within multi-hop environments. Having different traffic patterns will support estimate the performance of HWMP through several routing distances.
- Simulation Parameters and Scenario Setup
- Set Simulation Duration: Select a simulation time lengthier sufficient monitoring the route discovery, maintenance, and traffic flow within the network.
- Create Multiple Scenarios:
- Varying Node Density: Maximize or minimize node density to experiment the scalability of HWMP and capacity to manage a higher amount of nodes.
- High Mobility vs. Low Mobility: Change node speeds to observe how successfully HWMP adjusts to highly dynamic environments against extra stable and stationary networks.
- Path Failure and Recovery: Launch the node removals or link failures to estimate the HWMP’s path retrieval and rerouting abilities.
- Define Performance Metrics and Data Collection
- Key Metrics for HWMP:
- Packet Delivery Ratio: Estimate the ratio of effectively distributed packets to measure the routing reliability of HWMP.
- End-to-End Delay: Monitor the duration to move from source to destination, which showing HWMP’s efficiency within routing for packets.
- Routing Overhead: Observe the control packets are made by HWMP which supporting to estimate the protocol overhead for path discovery and maintenance.
- Route Discovery Time: For HWMP, calculate the duration to launch a route after a route request.
- Path Stability: Monitor the frequency of route changes that indicates how steady the routes under diverse network conditions.
- Data Collection Setup: For a complete valuation of HWMP’s performance, record these parameters along with a concentration on packet delivery, delay, routing overhead, and route stability utilizing OPNET’s data collection tools.
- Run the Simulation and Analyze Results
- Execute the Simulation: Execute the replication and monitor HWMP’s routing performance that particularly how it aggregates proactive and reactive path discovery handling the network routes.
- Analyze Results: For packet delivery ratio, end-to-end delay, routing overhead, and path stability, we make plots using OPNET’s analysis tools. Estimate how successfully HWMP sustains the efficient routes, which particularly in response to modifications within topology or node movement.
In this manual, we provided a thorough simulation process to simulate and analyse the Hybrid Wireless Mesh Protocol (HWMP) projects utilizing OPNET tool. We are available to deliver expanded insights if necessary.
We offer straightforward and customized support to help you simulate and analyze Hybrid Wireless Mesh Protocol (HWMP) projects using the OPNET platform.
