Distributed Storage to Support User Interactivity in Peer-to-Peer Video Streaming分散式儲存點對點互動隨選媒體
Media streaming is getting more and more important as an essential service with the increasing popularity of broadband Internet access. Video-on-demand (VoD) is one of such services where movies are delivered to desktops of distributed users with low delay and free interactivity. However, VoD is not scalable to large number of clients due to heavy server load and limited network bandwidth at the server side. Widely deployed multicast-capable networks and dedicated proxy servers are still developing. Therefore, it is very challenging to provide interactive VoD service in P2P network.
In this invention, we propose a novel scheme called VMesh to support interactive VoD service in P2P networks. VMesh utilizes the large storage capacity of peers to amplify the supply of videos so as to easily support the large demand in a scalable manner. In VMesh, videos are divided into segments and stored in peers distributed over the Internet. The introduction of this new scheme improves the segment supply jumping forward/backward, pause and restart during playback. VMesh has a low segment missing rate under random member join/leave. In addition, the system achieves low joining and seeking latencies which are crucial requirements in an interactive VoD system.
This invention is highly applicable in supporting peer-to-peer video streaming service on the Internet.
1. No need for asynchrony
2. Large total storage capacity of peers to improve the segment supply
3. Low segment missing rate under random member join/leave
4. Low joining and seeking latencies
- Supporting Peer-to-Peer Video-on-Demand
Patent Number: US7925781B1
Application Number: US2007754831A
Inventor: Chan, Shueng Han Gary | Yiu, Wai Pun
Priority Date: 26 May 2006
Priority Number: US7925781B1
Application Date: 29 May 2007
Publication Date: 12 Apr 2011
IPC Current: G06F0015173
US Class: 709238 | 709203 | 709217 | 709232
Assignee Applicant: The Hong Kong University of Science & Technology
Title: Distributed storage to support user interactivity in peer-to-peer video streaming
Usefulness: Distributed storage to support user interactivity in peer-to-peer video streaming
Novelty: Peer-to-peer network architecture for media transmission has user station which is adapted to search peers to find peer storing desired fragment of media program, and uses pointer to transition between fragments of media program from peers
信息和通信技術/電信
多媒體
29 May 2007
US 11/754831
US 7925781
TTC.PA.301S
香港
