Distributed energy-efficient peer-to-peer VoD system

Video streaming is one of the most popular internet services and generates a large percentage of the global network traffic. As major video-on-demand (VoD) service providers have seen their bandwidth costs increase, a shift towards peer-to-peer (P2P) architectures has been made. Indeed a number of recent research efforts have focused on offloading media server using P2P architectures, however the energy consumption that they incur has not been sufficiently studied. Ignoring energy constraints can significantly deteriorate the system´s efficiency especially in services where participating peers are mobile nodes with scarce battery resources. In this paper, we present a distributed energy-efficient P2P VoD system that successfully utilizes peers´ bandwidth resources, while preserving a low energy consumption. Its components that manage the overlay and the data scheduling are tested under extensive simulations that show promising results.