TY - JOUR T1 - Designing Incentives for Peer-to-Peer Routing JF - Proc. INFOCOM Y1 - 2005 A1 - Alberto Blanc A1 - Yi-Kai Liu A1 - Amin Vahda AB - In a peer-to-peer network, nodes are typically required to route packets for each other. This leads to a problem of “free-loaders,” nodes that use the network but refuse to route other nodes’ packets. In this paper we study ways of designing incentives to discourage free-loading. We model the interactions between nodes as a “random matching game,” and describe a simple reputation system that provides incentives for good behavior. Under certain assumptions, we obtain a stable subgame-perfect equilibrium. We use simulations to investigate the robustness of this scheme in the presence of noise and malicious nodes, and we examine some of the design trade-offs. We also evaluate some possible adversarial strategies, and discuss how our results might apply to real peer-to-peer systems. U4 - 374-385 UR - http://cseweb.ucsd.edu/~vahdat/papers/infocom05.pdf ER -