An Efficient Multicast Tree Aggregation Mechanism for Ad Hoc Networks

In this paper, we address the fundamental problem of forwarding table optimization in mobile ad hoc networks and we propose a new multicast tree aggregation mechanism based on the uniqueness property of prime numbers. Instead of creating, for any new session, a new entry in the routing table, our mechanism allocates a unique identity to each session in the multicast shared tree and ensures the delivery to concerned receivers. Evaluation performance results show the gain obtained when applying such a mechanism in multicast ad hoc networks by reducing significantly the entries number in the forwarding table although generating a low network overhead.