Date Added: Aug 2011
Mobile Adhoc NETwork (MANET) is highly vulnerable to attacks due to the open medium dynamically changing network topology, co-operative algorithm, lack of centralized monitoring and management point. The fact that security is a critical problem when implementing Mobile Ad hoc NETworks (MANETs) is widely acknowledged. One of the different kinds of misbehavior a node may exhibit is selfishness. Routing protocol plays a crucial role for effective communication between mobile nodes and operates on the basic assumption that nodes are fully cooperative. Because of open structure and limited battery-based energy some nodes (i.e., selfish or malicious) may not cooperate correctly.