EAODV: A*-BASED ENHANCEMENT AD-HOC ON DEMAND VECTOR PROTOCOL TO PREVENT BLACK HOLE ATTACKS
Abstract: Black hole attack is
an attack where a node that responds to RREQ from the source node by replying a
fake freshness information and false hop count. The black hole nodes do not
respond to distributed co-operation in routing protocol to absorb all the packets,
as a result, the network performance will drop. Most previous works are focused
on anomaly detection through dynamic trusted of the neighbouring nodes. We find
out that the internal comparisons take a long time. This loss can be shortened
by changing the routing mechanism. We propose an enhancement of AODV protocol,
named EAODV, that is able to prevent black hole attacks. The EAODV can find a
shortest path of routing discovery using A* heuristic search algorithm. Values
of hop count and estimate time to reach the destination node are used as input
in the heuristic equation and one-way hash function is used to make a secure
value and then to casting it to all neighbouring nodes. Experiments were
conducted in NS2 to simulate EAODV in different running time with and without
black hole nodes. The EAODV performance results are indicated better in terms
Packet loss and Average End-to-End delay.
Author: Khalil I Ghathwan,
Abdul Razak Yaakub, Rahmat Budiarto
Journal Code: jptkomputergg130012
