REPUTATION-BASED ATTACK-RESISTANT COOPERATION STIMULATION (RACS) FOR MOBILE AD HOC NETWORKS

In mobile ad hoc networks (MANET), nodes usually belong to different authorities and pursue differentgoals. In order to maximize their own performance, nodes in such networks tend to be selfish and are notwilling to forward packets for benefit of others. Meanwhile, some nodes may behave maliciously and tryto disrupt the network through wasting other nodes resources in a very large scale. In this article, wepresent a reputation-based attack resistant cooperation stimulation (RACS) system which ensures thatdamage caused by malicious nodes can be bounded and cooperation among the selfish nodes can beenforced. Mathematical analyses of the system as well as the simulation results have confirmedeffectiveness of our proposed system. RACS is completely self-organizing and distributed. It does notrequire any tamper-proof hardware or central management policy