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The P2P technology makes it possible that the number of the clients can be infinite, while the P2P technology still has some problems. Under the free riding model, someone always shut down the P2P services to others immediately after downloaded he wanted, which will influence the continue service and cause instability and fluctuation. In this paper, a robust architecture, cactus-architecture, is proposed, which can avoid the system fluctuation caused by the new joining nodes or the departing nodes. A new incentive mechanism is introduced, which can well motivate the clients to be providing service.
Date of Conference: 12-14 Dec. 2008