摘要
基于对象编码的MPEG-4视频业务将是网络业务中的主流业务,因而研究MPEG-4视频业务的特性对网络设计,容量规划,性能评估,接入控制与性能分析有重要的意义。通过应用多重分形分析方法对MPEG-4视频业务的分形行为进行分析,结果表明MPEG-4视频业务多重分形特性的存在,因而采用多重分形小波模型对MPEG-4视频业务进行建模分析,通过仿真试验结果的比较和分析,表明该模型能够真实反映MPEG-4视频业务的突发特性。
MPEG-4 encoded video is expected to account for a large portion of the traffic in future wireline and wireless networks. The viability of multifractal analysis has been explored in modeling the MPEG-4 video traffic for network design, network dimension, and performance evaluation. First, the MPEG-4 video traffic proved to exhibit the multifractal characteristic through multifractal formalism and spectra analysis. Then we apply the multifractal wavelet model to the MPEG-4 video traffic analysis and synthesis. The statistical numeric results and fit procedure show this model's flexibility and accuracy.
出处
《通信学报》
EI
CSCD
北大核心
2003年第12期52-57,共6页
Journal on Communications
基金
国家"973"基础研究基金(G1998030402)
国家自然科学基金(60272078)
国家"863"基金(2001AA111161-1)
