The Key Technologies for a Large-scale Real-time Interactive Video Distribution System

摘要：

a real-time,interactive video distribution system on Internet for large-scale users faces three bottlenecks: real-time performance,interactive performance and bandwidth pressure.This paper,based on the approach to establish a Real-time Peer-to-Peer network (RTP2P) with the minimum video data delay as the primary goal,and establish a hybrid framework of P2P and centralized networks,argues that the goal of real-time,interactive video distribution system for large-scale users is able to be achieved.The key technologies include: greedy scheduling algorithm,push-pull scheduling model,and the hybrid network model.The test result proves,through an online education system with 2000 simultaneous users,that the end users video delay is within 10 seconds.Compared with the normal P2P video streaming system with the delay varies between 30 to 120 seconds,Real-time P2P is far more close to C/S networks,the widely adopted network in China,the high bandwidth cost of which restricts its promotion.In short,RTP2P is a more real-time,lower bandwidthcosting network to distribute video stream,saving more than 90％ of the bandwidth cost This program is applicable to the field of large scale users video real-time performance and interaction,such as online education,chat rooms,multimedia social games,live broadcasting,etc.

关键词： Peer-to-Peer network real time interactione video distributation

作者: Liqun Ma Haihong Shen Qishan Zhang

作者单位: School of Electronics and Information Engineering Beijing University of Aeronautics and Astronautics Beijing,China

会议类型: 国际会议

会议名称: The 2nd IEEE International Conference on Advanced Computer Control(第二届先进计算机控制国际会议 ICACC 2010)

会议地点: 沈阳

会议语种:英文

页码: 471-476

在线出版日期: 2010-03-27（万方平台首次上网日期，不代表论文的发表时间）