Preference for downloading requirements-based P2P reputation model
Liu Fuli · 2010
Though traditional reputation mechanisms can reduce the phenomena of free-riding and tragedy of the commons in P2P file-sharing systems,selecting server peers according to reputation suffers from network congestion and the Matthew effect.A preference for downloading requirements-based P2P reputation model was proposed.This model combined two factors as the basis for selecting server peers:the evaluation of the requested file and bandwidth commitment.In view of the fact that different users preferences lead to different utilities,a server peer could allocate the bandwidth commitment dynamically to attract request peers.The simulation shows that the method can ease the congestion and raise the overall rate of utilization of resources in P2P file-sharing systems.