Performance Analysis of a Grid Based Route Discovery in AODV Routing Algorithm for MANET

Many On Demand routing algorithms in mobile Ad hoc networks (MANET) use a simple flooding mechanism to broadcast route request (RREQ) packets when there is a need to establish a route from a source node to a destination node. The broadcast of RREQ may lead to high channel contention, high packet collisions, and thus high delay to establish the routes. This paper propose a new modified AODV routing protocol EGBB-AODV where the RREQ mechanism is using a grid based broadcast (EGBB) which reduces considerably the number of rebroadcast of RREQ packets, and hence improve the performance of the routing protocol. Simulation study shows that EGBB-AODV outperform AODV in terms of end-to-end delay, delivery ratio and consumption power.