A reliable contents distribution middleware system for peer-to-peer networks

The P2P environment with various types of participating devices requires services that allow efficient sharing and easy discovery of resources. Also, reliable contents distribution mechanisms that adapt well to dynamically changing peer status or performance are needed. In this paper, we propose new middleware service architecture based on a self-reconfiguring overlay network which is dynamically adjusted according to a changing peer execution environment. We have implemented the prototype PACDS, P2P based Contents Distribution System, and validated its performance in the real environment.