[1]李敏宁[],鱼滨[],杨力[]. 面向视频应用的BitTorrent协议优化[J].计算机技术与发展,2015,25(11):115-119.
　LI Min-ning[],YU Bin[],YANG Li[]. Optimization on BitTorrent Protocol for Video Application[J].,2015,25(11):115-119.
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 面向视频应用的BitTorrent协议优化()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
25
期数:
2015年11期
页码:
115-119
栏目:
智能、算法、系统工程
出版日期:
2015-11-10

文章信息/Info

Title:
 Optimization on BitTorrent Protocol for Video Application
文章编号:
1673-629X（2015)11-0115-058
作者:
 李敏宁[1]; 鱼滨[2]; 杨力[2]
 1.西安电子科技大学 计算机学院；2.渭南职业技术学院
Author(s):
 LI Min-ning[1]; YU Bin[2]; YANG Li[2]
关键词:
 ; BitTorrent协议; P2P技术; 片段选择算法; 视频流
Keywords:
 ; BitTorrent protocol; P2P technology; piece selection algorithm; video stream
分类号:
TP31
文献标志码:
A
摘要:
 BitTorrent协议是一种基于P2P(Peer to Peer)的文件共享协议,具有"用户越多,下载速度越快"的特点,尤其是针对大文件的下载,更能体现出系统的优越性.视频媒体流是近年来网络用户占有量最多的一类文件,随着消费者带宽的进一步增加,越来越多的人希望得到像视频点播这样的多媒体应用.传统的C/S架构在当用户数目急剧增加时,容易产生服务器过载现象,使用服务器集群或分布式系统成本增大.BitTorrent能够较好地降低服务器负担,提高系统的扩展性和健壮性.但是BitTorrent针对普通大文件的共享设计,对文件的片段选择是无序进行的,不能有效地支持视频大文件的点播和直播.文中针对视频大文件的点播需求,对BitTorrent协议的片段选择算法进行优化,实现了视频文件的点播和直播.
Abstract:
 BitTorrent protocol is a file sharing protocol based on P2P (Peer to Peer),with"the more users the download faster" feature. It reflects the superiority of the system especially for large files. In recent years,video media streams are a class file that the most amounts of Internet users occupied. With the further increase of consumer bandwidth,more and more people want to get the multimedia applica-tions such as video on demand. The traditional C/S architecture,when a sharp increase is conducted in the number of users,prone to over-load the server,using the server cluster or distributed system to cause the cost increases. BitTorrent can better reduce server load and im-prove the scalability and robustness of the system. But BitTorrent is designed for ordinary share large files,selecting the file fragments are disorder conduction,and cannot effectively support on-demand and live video for large files. In this paper,for video-on-demand needs of large files,fragment selection algorithm is optimized of BitTorrent protocol,realizing on-demand and live of video files.

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更新日期/Last Update: 2016-01-05