Analysing Multicast Routing Protocols with Different Mobility Models

A mobile ad hoc network (MANET) is a wireless network where a collection of mobile nodes may dynamically vary the topological structure. Multicast is an efficient method to implement the group communications. Mobile Ad-Hoc is a dynamic, multi-hop and autonomous networks composed by wireless mobile nodes. The mobility model represents the realistic behavior of each mobile node in the MANET. Routing Protocol for Ad-Hoc networks are typically evaluated using simulations. In this paper, we compare the performance of On-Demand Multicast Routing Protocol (ODMRP), Adaptive demand driven Multicast Routing Protocol (ADMR) With Robust Scalable Geographic Multicast Protocol (RSGM) under different mobility models such as Random Way Point Model, Manhattan Model and Random Drunken Model. Using these models, performance metrics such as Packet Delivery Ratio, End-to-End Delay and Control Overhead are evaluated. ODMRP dynamically builds the route and manages the group membership. In ADMR, Multicast routing state is dynamically established and maintained only for active groups and only in nodes located between multicast senders and receivers. ADMR detects the high mobility without the use of GPS or other positioning system. RSGM supports a zone-based scheme to efficiently handle the two-tier membership management, and takes advantage of the membership management structure to efficiently track the locations of all the group members without resorting to an external location server. The simulation result shows that the throughput of ADMR is higher than that of ODMR and RSGM at high mobility and RSGM is high at low mobility. End to end delay and control over head of RSGM is higher than