ON DEMAND MULTIPATH ROUTING PROTOCOL WITH LOAD BALANCING FOR ADHOC NETWORKS

Abstract

Mobile AdHoc Network (MANET) is a collection of mobile nodes that can communicate with each other using multihop wireless links without utilizing any fixed based-station infrastructure and centralized management. Each mobile node in the network acts as both a host generating flows or being destination of flows and a router forwarding flows directed to other nodes. Multipath routing allows the establishment of multiple paths between a single source and single destination node. It is beneficial to avoid traffic congestion and frequent link breaks in communication because of the mobility of nodes. It results in an increased delivery ratio, smaller end-to-end delays for data packets. This work proposes an On-Demand Multipath Routing protocol with load balancing (ODMRLB) to find multiple node-disjoint paths and to distribute the traffic efficiently among the available routes. Simulation results show that the proposed protocol achieves higher packet delivery ratio and smaller end-to-end delay than NDMR and DSR.