The fact that security is a critical problem when implementing mobile ad hoc networks (MANETs) is widely acknowledged. One of the different kinds of misbehaviour a node may exhibit is selfishness. A selfish node is a node which avoids the forwarding activity due to its current low power status or it feels so over utilized in the forwarding activity and fears that it will drain so much power that it will not have enough energy to send or receive its own packets in the future. This selfish behaviour problem is quite common in ad hoc networks. One way of preventing selfishness in a MANET is a detection and exclusion mechanism. In this paper, we have proposed an Enhanced AODV routing protocol to detect and isolate selfish nodes from the network in MANETs. The strategy assumes that the selfish nodes are not malicious and obligated to speak truth about their current energy level.[20]S. Corson, and J. Macker, Mobile Ad hoc Networking: “Routing Protocol Performance Issues and Evaluation Consideration” rfc 2501, jan 2003.
Keywords
AODV, EAODV Routing Protocol, Mobile Adhoc Network, Selfish Nodes.
