Peer-Owl: An Adaptive Data Dissemination Scheme for Peer-to-Peer Streaming Services

More and more researchers have put their emphases on peer-to-peer streaming services, which can provide massive and cheap video-on-demand services. Data dissemination is one of the most important open problems when providing peer-to-peer streaming services, including live streaming and videoon-demand. Considering the performance and fault-tolerance of streaming systems, content should be distributed and replicated onto peer nodes according to some kind of strategy. In this paper, a novel data dissemination scheme is proposed. According to the proposal, media files are recoded into injected objects with several segments according to the characteristics of VCR operations’ frequency, without changing the media compressing formats. Then, a peer who wants to get one media file can acquire the corresponding segmented object files from many source peers, not from only one peer. The new scheme does not need any extra network bandwidth. Results from simulations have proved that our Peer-Owl scheme has good performances.