Efficient Flooding using Zonal Concept of LAR Protocol on AODV in MANETs

In MANETs, there is a constraint on network bandwidth, so different routing protocols has been proposed which broadcasts the packets by flooding which is simple but causes high retransmissions which lead to media congestion and packet collisions that can significantly degrade the network performance and throughput. So, we proposed flooding algorithm which makes use of the nodes position to rebroadcast the packets by using the zonal concept of LAR to limit the route of area discovery and efficiently spread the control traffic in the mobile ad hoc network, thus causing the enhancement of the protocol performance. The algorithm is applied on the Ad-hoc On Demand Distance Vector (AODV) routing protocol for the route discovery process to reduce the number of Route Request (RREQ) messages propagating through the network. This scheme improves the network throughput and reduces routing overhead. Keywords— AODV, Hello Messaging, Network Overhead, Routing.