VBR视频流量统计特性及其模型  

Statistic Characteristics and Models of VBR Video Traffic

作　　者：李菁[1] 赵明旺[1] 许伟[1] 

机构地区：[1]武汉科技大学信息科学与工程学院,武汉430081

出　　处：《计算机与数字工程》2006年第9期126-129,132,共5页Computer & Digital Engineering

摘　　要：通过对VBR视频流量的统计特性的分析,表明VBR视频业务不但具有短时相关性,而且具有长时相关性,因此传统视频业务模型在描述长时相关性方面明显存在不足。根据视频流量的不同相关特性,介绍当前几种非传统VBR视频流量模型,并对它们的特点进行分析论述。A statistic characteristics of VBR video traffic shows that VBR video traffice not only has short - range dependence but also has long - range dependence, so traditional video operation model exists obvious deficiency in describing long - range dependence. Related to the Relevant characteristics of video traffic, some unconventional video traffic models are introduced and some analysis and dissertation on it＇s trait are given.

关 键 词：VBR视频业务 流量预测 自相似 尾部概率分布 

分 类 号：O141.4[理学—数学]