ABSTRACT

Routing in mobile Ad Hoc network described by multi-hop wireless link is a delicate task. The lack of permanent infrastructure and the instability of the topological changes due to nodal mobility and changes in wireless propagation conditions during the transmission of time-sensitive information between source and destination pair are challenging in ad hoc network routing. Furthermore, route discovery and route maintenance are the two major tasks in implementing the routing protocol in ad hoc network. The use of multipath routing in ad hoc network with a set of reliable data paths can solve these problems. In the algorithm proposed in this study, we use the AODV multipath routing, where the best route having high data rate and high security level is selected first and another alternate node-disjoined path is selected next as a backup route for instant use during route failure, thereby saving the time and cost of repairing/discovering new routes. Finally, we simulated the networks to depict the proposed algorithm and presented the results obtained. A comparison of the routes and data rates is also made.