Context aware detection of selfish nodes in DSR based ad-hoc networks

There can be several sophisticated attacks motivated by selfish, resource saving nature of nodes in a civilian co-operation based ad-hoc network. A distributed rating model based castigation can be useful to discourage selfish nodes from performing these attacks. Even if an attacker is detected, it is hard to charge an accused node in a dynamic environment of ad-hoc network. In this paper we detect a large range of attacks on Dynamic Source Routing (DSR) protocol. We provide a low-cost mechanism informing other nodes of the system about the accused and provide an inference scheme to blame the accused and malicious accuser without doubt.