Mixed P2P-CDN system for media streaming in mobile environment
Shiann‐Tsong Sheu, Chi-Hao Huang · 2011
Media streaming using P2P (peer to peer) technique has been implemented and widely deployed in the present time. In the traditional P2P media streaming, each peer, while downloading media contents, is at the same time simultaneously uploading the media contents to other peers, which will contribute to the overall available bandwidth. Traditionally before playing back the information, P2P media streaming requires to download and reassemble media content. However, time delay occurs when media contents were required to receive and reassemble from highly dynamic and autonomous mobile peers. Until now, delay free playback is still a challenge for peers to playback video instantly. Content Distributed Network (CDN) server provides user with original media contents and instant playback. Although, CDN seems to be satisfied with media streaming; the unique characteristics of media steaming, such as large file size, high bandwidth requirement, and sustained streaming duration can lead to limitation of services capacity. In this paper, we proposed a mixture of P2P and CDN system for media streaming in mobile environment, which can reduce both initial and average duration of playback and accommodating more users, therefore scalability has been improved.