A Multicast Routing Protocol for Multi-Hop Wireless Networks: ODMRP

Abstract

One of the major strengths of ODMRP is its unicast routing capability. Not only can ODMRP coexist with any unicast routing protocol, it can function as both multicast and unicast. Thus. ODMRP can run without any underlying unicast protocol. Other ad hoc multicast protocols such as AMRoute, CAMP, RBM, and LAM must be run on top of a unicast routing protocol. CAMP, RBM and LAM in particular only work with certain underlying unicast protocols. In this paper we propose a on demand routing protocol which uses the mobility information obtained from the mobile hosts to predict topological changes. The scheme performs rerouting for a real time flow before a path becomes invalid. This is done using a mechanism we refer to as "multi-hop handover". Our goal is to minimize disruptions of real time sessions due to mobility