Management of Node Mobility in Mobile Ad Hoc Networks Using Multipath Routing Protocol

Jhunu Debbarma, Rupanjal Debbarma,Shimal Das, Dr. Sudipta Roy


Mobile Ad hoc networks are collections of wireless nodes that form temporary network without the aid of any infrastructure and central administration that gives the potential to every node to act as a router. The nature of ad hoc network is high mobility that results in ever changing topology and lower capacity of the shared wireless medium. To provide support for real-time applications there is requirement for stable routing considering the node mobility and signal strength of the nodes. There are several standard on-demand and pro-active routing protocols to support best traffic quality form source to destination. On-demand routing protocol like Ad hoc on demand distance vector (AODV) routing protocol is considered, due to the relative advantage when compared to pro-active routing protocols. To tackle the high mobility of nodes, each intermediate node on the path keeps three backup routes to solve route failure problem. The signal strengths from neighbouring nodes estimate relative stability of the link. In this paper we propose an on-demand AODV routing protocol that ensures stable route from the source to destination. Simulations were carried out in NS-2 that shows proper management of signal strength improves higher packet delivery ratio, increase in throughput and less end-to-end delay


Keywords: Mobile ad hoc networks, node mobility, signal strength, multi path, route stability, ad hoc on demand distance vector routing

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