EFFICIENT REBROADCAST FOR REDUCING ROUTING OVERHEAD IN MANETS USING CONTINUOUS NEIGHBOUR DISCOVERY
Murkonda Vijaya, M. Srinivasa Rao, Arjun Chandrasekhar · IJITR International Journal of Innovative Technology and Research - IJITR International Journal of Innovative Technology and Research · 2014
In mobile ad hoc networks (MANETs), the network topology changes frequently and unpredictably due to the arbitrary mobility of nodes. This feature leads to frequent path failures and route reconstructions, which causes an increase in the routing control overhead. In order to limiting the number of rebroadcasts can effectively optimize the broadcasting, a neighbour coverage-based probabilistic rebroadcast (NCPR) protocol, in order to effectively exploit the neighbour coverage knowledge. We propose a novel dynamic rebroadcast delay to determine the rebroadcast order, and then obtain a more accurate additional coverage ratio and by keeping the network connectivity and reduce the redundant retransmissions, a metric named connectivity factor to determine how many neighbours should receive the route request (RREQ) packet. By combining the additional coverage ratio and the connectivity factor, introduce a rebroadcast probability, which can be used to reduce the number of rebroadcasts of the RREQ packet to improve the routing performance.