A mechanism for discovery and prevention of coopeartive black hole attack in mobile ad hoc network using AODV protocol

In present mobile ad hoc network is an innovative and incredibly popular technology but influenced by foremost security issue because of its dynamic nature or decentralized network The black hole is one of the attack from several attack in the MANETs which advertise itself having the shortest or “freshest” route to transmit the packet to the destination and replies the route request incorrectly to drop all the packets. In this paper, broadcast synchronization (BS) and relative distance (RD) method of clock synchronization is used to prevent the black hole nodes and the analysis of the following parameter used in this proposed method such as throughput, end to end delay, and packet delivery ratio is done in NS 2.34 network simulator.