Cooperative incentive mechanism based on game theory in mobile P2P networks
移动P2P网络基于博弈论方法的协作激励机制

Many selfish mobile peers consume much resource without any contribution in mobile P2P network. Considering the limitation of network resource and selfishness of peers, this paper proposed a cooperative incentive mechanism based on game theory. The mechanism provided peers with different network's service quality according to their contribution and therefore every peer was encouraged to cooperate with others or share their resource. This paper described and analyzed the resource allocation policy of cooperative incentive mechanism in detail. Besides, the existence of the steady Nash equilibrium in the game was also proven. Simulation and analysis results show that the incentive mechanism can encourage the cooperation among the peers and improve the network performance efficiently. Compared with current cooperative incentive mechanism, the mechanism can increase forwarding ratio of the packet.