Effective data lookup scheme for Cluster based Data Sharing in MANET

In this paper we have proposed a novel cluster based data sharing scheme that tries to employ the advantages of both clustering as well as proactive routing. Our clustering algorithm divides the MANET into clusters forming cluster heads, cluster gateways and cluster members during the cluster formation phase. We restrict the use of DSDV routing protocol within the cluster thereby reducing the control overhead and routing table size. Cluster maintenance and file index distribution within the cluster is done by adding extra fields in the DSDV control messages. Routing is done using the DSDV routing table. Unlike existing data lookup schemes, where a data lookup query is flooded in the entire MANET or in the cluster backbone, here it is forwarded to the nearest gateway node thereby completely eliminating flooding.