| 视频网格中流媒体业务的流量模型 |
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| 引用本文： | 高伟涛,崔占忠,张海旸. 视频网格中流媒体业务的流量模型[J]. 北京理工大学学报, 2010, 30(2): 170-173 |
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| 作者姓名： | 高伟涛 崔占忠 张海旸 |
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| 作者单位： | 北京理工大学,宇航学院,北京,100081;北京邮电大学,计算机科学与技术学院,北京,100876 |
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| 摘 要： | 针对网格环境下的多服务器对单个用户提供服务的流媒体服务模式,提出了一种多层次的网格环境下的通用流媒体业务的流量模型——复合AR模型(MAR).根据媒体网格中流媒体的特点,将媒体流分为媒体流段和媒体流片断,媒体流片断是近似平稳过程,采用AR模型建模,媒体流段中的媒体片断之间符合半马尔可夫过程,媒体流中的媒体流段符合泊松过程.该模型为网格环境中提供更加有效、高质量的VoD服务打下了基础.
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| 关 键 词： | 视频网格 半马尔可夫随机过程 流媒体 流量模型 |
| 收稿时间： | 2008-12-18 |
Streaming Media Service Traffic Model in Video Grid |
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| GAO Wei-tao,CUI Zhan-zhong and ZHANG Hai-yang. Streaming Media Service Traffic Model in Video Grid[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2010, 30(2): 170-173 |
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| Authors: | GAO Wei-tao CUI Zhan-zhong ZHANG Hai-yang |
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| Affiliation: | 1.School of Aerospace Engineering;Beijing Institute of Technology;Beijing 100081;China;2.School of Computer Science and Technology;Beijing University of Posts and Telecommunications;Beijing 100876;China |
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| Abstract: | Proposes a multi-layer general streaming media service traffic model(multiple AR model,MAR) in video grid for the service pattern of multi-server serving single client.The media streaming is layered into media streaming segment and media streaming sub-segment.Media streaming segment as a homogenous process is modeled by AR,sub-segments in media streaming segment are described by semi-Markov stochastic process,and segments in media streaming accord with Poisson distribution.The model sets up a basis for supp... |
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| Keywords: | video grid semi-Markov process streaming traffic model |
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