| MPEG标准VBR视频业务新模型及其性能研究 |
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| 引用本文： | 李生红,刘泽民. MPEG标准VBR视频业务新模型及其性能研究[J]. 电子学报, 2000, 28(1): 42-44 |
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| 作者姓名： | 李生红 刘泽民 |
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| 作者单位： | 1. 上海交通大学电子工程系浩然大楼19楼,上海 200030;2. 北京邮电大学电信工程学院,北京 100876 |
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| 基金项目： | 邮电部科技专题项目资助课题 |
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| 摘 要： | 迄今为止,MPEG-1标准下的可变比特率(VBR)视频业务建模问题还没有得到很好的解决.鉴于此,本文在分析这类业务统计特性的基础上,对这类业务提出了一种新的帧层模型.该模型可以很好地体现这类业务的一、二阶统计特性.通过使用该模型模拟实际视频信号,也显示了该模型在体现实际业务排队性能上的有效性.
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| 关 键 词： | ATM网络 可变比特率视频业务 业务建模 长相关性 活动图像专家组(MPEG) |
| 文章编号： | 0372-2112 (2000) 01-0042-03 |
| 收稿时间： | 1998-10-12 |
A New Model for MPEG VBR Video Traffic and Its Performance Study |
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| LI Sheng-hong,LIU Ze-min. A New Model for MPEG VBR Video Traffic and Its Performance Study[J]. Acta Electronica Sinica, 2000, 28(1): 42-44 |
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| Authors: | LI Sheng-hong LIU Ze-min |
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| Affiliation: | 1. Department of Electronic Engineering,Shanghai Jiaotong University,Shanghai 200030,China;2. School of Telecommunications,Beijing University of Posts and Telecommunications,Beijing 100876,China |
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| Abstract: | So far,the Problem of modelling MPEG-1 VBR video traffic has not been solved well. For this reason,based on the analysis of their statistical properties, this paper Presents a new frame-layer traffic model for the type of traffics. The model can reflect. The first and second order statistical properties of the type of traffics well. By using it to imitate real video signal, it is also show that the model can approximate the performance of real traffic in a queue effectively. |
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| Keywords: | ATM networks variable bit rate video traffic (VBR video traffic) traffic modelling long-range dependence Moving Picture Expert Group (MPEG). |
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