Design and Implementation of An Efficient Multipath AODV Routing Algorithm for MANETs

A Mobile Ad-hoc Network (MANET) is a collection of nodes that communicate with each other wirelessly without any central support or conventional structure. The transmission of data packets over wireless channels in MANETs helps to maintain communication. Ad-hoc On-Demand Distance Vector Routing is a reactive routing protocol associated with MANET which creates a route to destination by broadcasting route request packets through the entire network. A link failure in this type of protocol causes the source to flood the network with these Route Request packets that leads to congestion in the network and performance degradation. This paper proposes an Efficient Multipath AODV routing algorithm that determines if a node in a network is relaying or is silent in the process of route discovery to send data packets from the source to destination. Simulation results show the proposed routing algorithm controls congestion and enhances performance in the network as not all network nodes have to participate in the route discovery for a particular source-destination pair.