MPEG标准VBR视频业务新模型及其性能研究

A New Model for MPEG VBR Video Traffic and its Performance Study

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．

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.