An Integrated Stimulation and Punishment Mechanism for Thwarting Packet Dropping Attack in Multihop Wireless Networks
In multihop wireless networks, the rational packet droppers may not relay others' packets because packet relay consumes their resources without benefits and the irrational packet droppers drop packets intentionally to disrupt the packet transmission process, which may fail the multihop communication. Cooperation stimulation mechanisms can motivate the rational packet droppers to relay packets, but they cannot identify the irrational packet droppers. In this paper, the authors develop a mechanism called TRIPO that adopts stimulation and punishment strategies for thwarting packet dropping attack. TRIPO uses micropayment to stimulate the rational packet droppers to relay others' packets and enforce fairness, and uses reputation system to identify and evict the irrational packet droppers.