An Effective Approach for Video-on-Demand Streaming Services Based on BitTorrent

In this paper, an effective solution for video-on-demand (VoD) streaming services based on BitTorrent mechanism is present. In this solution, several modifications have been incorporated into BitTorrent to support high quality streaming content delivery. First, pieces are selected based on the double windows algorithm instead of the rarest-first policy. Second, some neighbor peers are selected based on the time when the peers join in the system not randomly. Finally, each peer gives more free tries to the early joined peers to let them participate sooner in the media distribution. The result shows that our modifications shorten the startup latency, improve the continuity as well as the bandwidth utilization, and a good streaming quality can be achieved.