GMCR:一种提高直播服务质量的新方案

2014 Ninth International Conference on P2P, Parallel, Grid, Cloud and Internet Computing Pub Date : 2014-11-08 DOI:10.1109/3PGCIC.2014.93

Guomin Zhang, Chao Hu, Na Wang, Xianglin Wei, Chang-you Xing

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引用次数: 3

摘要

P2P网络直播系统是近十年来发展迅速的热门互联网应用之一。然而，一些常见的问题，如启动延迟长、播放不流畅等，严重限制了用户的直播体验。本文提出了一种新颖而简单的方案，即应急资源保障机制(GMCR)，该方案通过部署应急服务器，为播放时间紧迫的数据块提供应急服务，从而提高直播的服务质量(QoS)。然后建立了排队模型，分析了应急服务器资源数量与用户QoS水平之间的定量关系。最后，在P2P直播仿真平台上对该方案进行了仿真，得到了一些关键参数的最优值。理论分析和仿真实验结果验证了GMCR方案的可行性和有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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GMCR: A Novel Scheme for Improving Quality of Service of Live Streaming

P2P live streaming system is one of the most popular Internet applications which develop rapidly in the past decade. However, some common problems, such as long startup delay and unsmooth playback, seriously restrict user's experience on live streaming. In this paper, we propose a novel but simple scheme, namely guarantee mechanism of contingency resource (GMCR), which can improve the quality of service (QoS) of live streaming by deploying a contingency server to provide contingency service for those chunks whose playback deadlines are urgent. Then we establish a queuing model to analyze the quantitative relation between the amount of contingency server resources and the level of user's QoS. Finally, we simulate our scheme in a P2P live streaming simulation platform, and obtain the optimal value of some critical parameters. The results of theoretical analysis and simulation experiment present the feasibility and validity of GMCR scheme.

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来源期刊

2014 Ninth International Conference on P2P, Parallel, Grid, Cloud and Internet Computing

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