Research Article
AODV Enhancement Based on the Minimization of Route-Request Packets
@INPROCEEDINGS{10.1007/978-3-642-27317-9_45, author={Puja Rani and G. Biswas}, title={AODV Enhancement Based on the Minimization of Route-Request Packets}, proceedings={Advances in Computer Science and Information Technology. Computer Science and Information Technology. Second International Conference, CCSIT 2012, Bangalore, India, January 2-4, 2012. Proceedings, Part III}, proceedings_a={CCSIT PART III}, year={2012}, month={11}, keywords={MANETs Proactive and Reactive or On-demand routing protocol AODV protocol M-AODV Network simulator}, doi={10.1007/978-3-642-27317-9_45} }- Puja Rani
G. Biswas
Year: 2012
AODV Enhancement Based on the Minimization of Route-Request Packets
CCSIT PART III
Springer
DOI: 10.1007/978-3-642-27317-9_45
Abstract
A MANET is a self-configuring network of mobile devices connected by wireless links. Reactive Routing protocols for MANETs flood RREQ control packets to discover and establish route between the source-destination pairs. This situation becomes worse and degrades the network performance whenever several connections need to be established simultaneously. This paper proposes a mechanism to minimize the route-establishment overhead in AODV by controlling the flooding of RREQ packets. In brief, each intermediate node counts the number of RREQ packets flooded by it and if the count exceeds a threshold, stops further flooding. On the other hand, an intermediate node, after getting a RREP packet within reverse-route-lifetime reduces the counter value; otherwise the reverse link in its cache is removed along with the reduction of the counter value. The proposed scheme has been simulated using ns-2 and compared with the original AODV and it has been found that it enhances network performance.