摘要:Mobile peer-to-peer (P2P) networks have become increasingly popular, but the attacks and selfness of peers make it vulnerable. In this paper, a trust model based on participation is proposed for mobile P2P networks (called ParticipationTrust). It could deal with the egoistic and malicious behaviors. And the level of peer’s participation could be calculated through the transaction participation and recommendation participation. A set of experiments show that the model is rational and effective