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

Research Article

AODV Enhancement Based on the Minimization of Route-Request Packets

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  • @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
Puja Rani1,*, G. Biswas1,*
  • 1: Indian School of Mines (ISM)
*Contact email: puja20.rani@gmail.com, gpbiswas@gmail.com

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.