Solutions to deal with DoS attacks of DSR-BCA protocol.

Feature of wireless and self-organizing makes Ad hoc network very vulnerable to DoS attacks. On the basis of existing research results of DSR-BCA protocol, this paper added a mechanism to deal with DoS attacks. Nodes participate in routing were involved with a verification algorithm of performs routing. When the network data transmission packet loss rate exceeded a preset threshold, the isolation algorithm was used to identify the node which had been DoS attacked and isolated it, so as to maximize the effectiveness of the network nodes. Simulation results show that when Ad hoc network is under DoS attacks, this method has obvious effects on improving two aspects of performance of the average transmission delay and packet delivery ratio. This method can play a very good role in boycotting DoS attacks and enhancing the robustness of the network. [ABSTRACT FROM AUTHOR]