A Multipath On-Demand Routing with Path Selection Entropy for Ad Hoc Networks

An ad hoc network is a collection of wireless mobile nodes dynamically forming a temporary network without the use of any existing network infrastructure or centralized administration. The multipath routing in mobile ad hoc networks is difficult because the network topology may change constantly, and the available alternative path is inherently unreliable. A number of routing protocols like ad hoc on demand distance vector routing (AODV), on-demand multipath distance vector protocol (AOMDV), AODVM (AODV multipath) have been implemented. In this paper an attempt has been made to compare the performance of three prominent on demand routing protocols for mobile ad hoc networks. An on demand node disjointed multipath routing protocol with low broadcast redundancy is proposed. Multipath routing allows the establishment of multiple paths between a single source and single destination node. The solution is based on lower layer specifics. Simulation results show that, with the proposed multipath routing protocol, packet delivery ratio, end-to-end delay, and routing overhead ratio can be improved in most of cases. It is an available approach to multipath routing decision.