| 一种基于Grid的多媒体内容分布框架 |
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| 引用本文： | 李春洪,顾铁成,李文中,陆桑璐,陈道蓄.一种基于Grid的多媒体内容分布框架[J].计算机科学,2005,32(5):105-108. |
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| 作者姓名： | 李春洪 顾铁成 李文中 陆桑璐 陈道蓄 |
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| 作者单位： | 南京大学计算机软件新技术国家重点实验室,南京大学计算机科学与技术系,南京,210093 |
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| 基金项目： | 国家“973”项目(编号:2002CB312002)，国家“863”项目(编号:2001AA113050). |
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| 摘 要： | 基于互联网的大规模多媒体内容分发系统中,广泛地采用了数据复制技术来提高系统的性能。网格技术在构建大规模分布式信息系统方面,有着广阔的前景。本文提出了一种基于网格的多媒体内容分布框架,在网格基础服务的基础上,可以实现适用于流媒体应用的副本管理、传输和查找定位机制。此外,本文还对广域分布式信息系统中,副本的放置算法和用户请求调度机制等关键技术进行了深入探讨。
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| 关 键 词： | 复制 网格 副本放置 流媒体 |
A Grid-Based Multimedia Content Distribution Framework |
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| LI Chun-hong,GU Tie-Cheng,LI Wen-Zhong,LU Sang-Lu,CHEN Dao-Xu.A Grid-Based Multimedia Content Distribution Framework[J].Computer Science,2005,32(5):105-108. |
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| Authors: | LI Chun-hong GU Tie-Cheng LI Wen-Zhong LU Sang-Lu CHEN Dao-Xu |
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| Affiliation: | LI Chun-Hong,GU Tie-Cheng,LI Wen-Zhong,LU Sang-Lu,CHEN Dao-Xu State Key Laboratory for Novel Software Technology,Department of Computer Science and Technology,Nanjing University,Nanjing 210093 |
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| Abstract: | Replication techniques are widely employed to improve the performance of large-scale content distribution systems. There is a big future for Grid technology in building large-scale distributed information systems. Based on basic Grid services, we propose a Grid-based multimedia content distribution framework, which offers a set of key functions to meet the requirements of continuous multimedia applications, such as replication management, replica transferring and discovering etc. Besides, this paper also discusses some key techniques in detail, such as replica placement algorithms and request scheduling mechanism. |
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| Keywords: | Replication Grid Replica placement Continuous media |
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