Misbehavior Constraint MAC Protocol (MC-MAC) for Wireless Networks

The IEEE 802.11 protocol assumes that all wireless network nodes will abide by the protocol and cooperate well with it. However, in order to obtaining more channel resources or destroying network performance, some selfish nodes will be in misbehaviors when they are in the certain condition wireless contention-sharing channels, such as, Backoff Value Manipulation is a kind of misbehavior. And for this kind of misbehavior, this paper proposes a Misbehavior Constraint MAC protocol (MC-MAC), which can detect and penalize the backoff value manipulation, and it includes a new backoff value generating function with penalty function and a reputation model. Simulation experiments shows that the MC-MAC protocol has a significant inhibitory effect on misbehavior and can improve system throughput.