Routing Overhead Reduction in MANETs

Routing is one of the challenging issues in Mobile Ad hoc NETw orks (MANETs). Broadcasting is the fundamental and eff icient data dissemination mechanism for route discovery in reactive routing protocols of Mobile Ad hoc NETw ork (MANET). This causes the problem called the broadcast storm problem w hich results in redundant retransmission and adds to routing overhead. There are many approaches proposed to solve the problem; but none of them addresses the problem effectively. This paper proposes a new mechanism that has probabilistic rebroadcast based on neighbor coverage for the routing overhead reduction. This proposed mechanism w ill reduces the packet retransmission and thus reduce the routing overhead. This approach combines the advantages of probabilistic mechanism and neighbor area coverage based approach. This new mechanism can improve the performance of broadcasting in various network scenarios. This approach is simple and can be implemented in NS-2. Keywords—Ad Hoc Network, broadcast storm, MANET, probabilistic rebroadcasting, AODV, RREQ, RERR. ——————————  ——————————