چکیده (انگلیسی):

The security is major challenging issue in wireless sensor network applications because they are operated in
public and unrestrained areas which also makes difficult to protect against tampering or captured by an
adversary force that can launch insider attacks to make a node compromised. One type of such attack is
black hole attack. Existing AODV routing protocol does not have mechanism to defend against such
attacks. In this study, we comprehensively investigates the performance of AODV protocol by simulating it
on the various network parameters with various number of blackhole nodes. The metrics for evaluation has
been considered as packet delivery ratio, end to end delay, normalized routing overhead and total number of
packets drop. The simulation results show that blackhole attack severely degrades the performance of WSN.