A Group-Based Reputation Mechanism for Mobile P2P Networks

Authors:
Xu Wu;Jingsha He;Fei Xu
Affiliations:
College of Computer Science and Technology, Beijing University of Technology, Beijing, China 100124;School of Software Engineering, Beijing University of Technology, Beijing, China 100124;College of Computer Science and Technology, Beijing University of Technology, Beijing, China 100124
Venue:
GPC '09 Proceedings of the 4th International Conference on Advances in Grid and Pervasive Computing
Year:
2009

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Abstract

This paper presents a group-based reputation mechanism and gives a distributed implementation method for mobile p2p networks. In the proposed mechanism peers with similar mobility are clustered into a set of groups, where there are two different kinds of peers: Mobile and Power peers. Mathematic analyses and simulations show that the adoption of group avoids the communication overload in global trust computation, and the benefits of trust evaluation are maintained by managing trust in the groups. Compared to the current p2p reputation mechanisms, the proposed mechanism is slightly affected by the dynamic joining and departing of peers. Additionally, it effectively encourages new peers to take part in the systems actively and friendly.