Comparative Analysis on Mobility Aware and Stateless Multicast Routing Protocols in Mobile Ad-Hoc Networks

Abstract

In this paper, the author has studied the performance of multicast routing protocols in wireless mobile ad-hoc networks. In MANET, for a protocol to be more efficient and high robust is a difficult task, due to the mobility of nodes and dynamic topology. It discovers the routing path by broadcasting message over the whole network, which results in considerable cost for routing discovery and maintenance. Moreover, the reliability of the discovered path can not be guaranteed, since the stabilities of nodes along such path are unpredictable. RBMR employs a mobility prediction based election process to construct a reliable backbone structure performing packet transmission, message broadcasting, routing discovery and maintenance. Another protocol novel Robust and Scalable Geographic Multicast Protocol (RSGM) is also analyzed. Several virtual architectures are used in the protocol without need of maintaining state information for more robust and scalable membership management and packet forwarding in the presence of high network dynamics due to unstable wireless channels and node movements.