Improving CA-AOMDV Protocol Against Blackhole Attacks
Sherril Sophie, Maria Vincent, Thamba Meshach W · 2012
Abstract- Mobile ad hoc networks are infrastructure less network where the nodes themselves are responsible for routing the packets. The dynamic topology of MANETs allows nodes to join and leave the network at any point of time. Due to security vulnerabilities of the routing protocols, wireless ad hoc networks are not protected against the attack of malicious nodes. One of these attacks is the Black hole Attack. In the conventional scheme a channel aware feature is added on the AOMDV Protocol to overcome the channel fading. However this scheme does not provide any security against the Black hole Attack. This paper contributes a mechanism that generates randomized multipath route which is circumventing black holes. The security and energy performance are analytically investigated. Extensive simulations are performed to verify and validate the mechanism.