Incentive Mechanisms for Peer-to-Peer Systems
نویسندگان
چکیده
Peer-to-Peer (P2P) systems allow participants to share their computational, storage, and networking resources to the benefit of every participant. Most P2P systems assume that all participants in the system follow the protocols and observe the system’s fair use policies. However, in a system with open or loosely controlled membership, participants have a self-interest in modifying their behaviour if it allows them to consume the network’s resources without contributing any of their own. As the number of these Free Riders in the P2P network increases, it not only decreases the effective performance of the network, but also decreases the incentive for others to participate. This brings in the need for good incentive mechanisms to motivate the peers to participate and penalize them if they dont participate. Gnutella and Torrents are two popular P2P network protocols. In this paper we examine several incentive mechanisms that could help improve the Free Rider problem in these networks.
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