An Enhanced AODV Routing Protocol W.R.T Security
Keywords:
mobile ad hoc network, security, routing, AODV, black holeAbstract
MANET has gained immense popularity in recent times because of its self-configuration and selfmaintenance capabilities. AODV (Ad-hoc On-demand Distance Vector) is commonly used reactive routing protocol in
MANETs for route establishment between communicating nodes. Due to lack of centralized monitoring and
dynamically changing topology of MANET, they are highly vulnerable security attacks. Black hole attack is a type of
denial-of-service attack in which malicious nodes falsely advertise shortest path to the destination node. AODV
protocol directs packets towards those malicious nodes and such nodes drop packets. In this paper, an efficient
technique to detect and prevent black hole attack is proposed. Calculated results of various network metrics like PDR,
NRL and Avg. End to End Delay are for single black hole attack show up to 80% improvement in PDR.