on-off源的长程相关结构  

Large-Timescale Autocovariance Structure of on-off Sources

作　　者：季晓飞[1] 范戈[1] 陈月华[1] 徐拯[1] 

机构地区：[1]上海交通大学区域光纤通信网国家重点实验室,上海200030

出　　处：《上海交通大学学报》2004年第z1期83-86,共4页Journal of Shanghai Jiaotong University

摘　　要：以更新理论和拉普拉斯-司阶梯变换为数学工具推导出各种on/off周期持续时间尾分布情况下,on-off源的长程相关结构.证明了on-off源的长程相关结构主要取决于尾分布最重的那个周期的尾分布特性,并通过构造随机on-off样本序列对该结论的正确性进行了验证.By using the mathematical tools of renewal theory and Laplace-Stieltjes transform, the large-timescale covariance structure of the on-off sources with general distributed on/off duration was derived. It was proved that the large-timescale autocovariance structure of on-off sources is mainly determined by the duration whose tail is heavier. This conclusion is identified by calculating the autocovariance functions of the empirically constructed on-off sequences.

关 键 词：on-off源 重尾分布 自协方差 

分 类 号：TN915.01[电子电信—通信与信息系统]