网络数据包传输占用缓存大小混沌特性分析  

Chaotic characteristics of the occupied buffer size from packet transmission

作　　者：唐红[1] 胡容[1] 廖荣南[1] 

机构地区：[1]重庆邮电大学网络与计算研究中心,重庆400065

出　　处：《重庆邮电大学学报（自然科学版）》2013年第3期358-363,共6页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：国家自然科学基金(61040044;60873079);重庆市自然科学基金重点项目(CSTC2009BA2089)~~

摘　　要：建立一个无尺度元胞自动机模型,更为真实地模拟网络中数据包传输过程,得到单个节点在不同时刻和所有节点在一定时刻的缓存占用大小,在此基础上采用计算最大Lyapunov指数的方法,研究了网络节点缓存占用的混沌特性。研究结果表明,网络中单个节点占用的缓存大小表现出混沌性,而所有节点构成的系统占用的缓存大小在整体上趋于稳定,反映出网络数据包传输系统具有突现的复杂性特点。This paper brings a scale-free cellular automata model to simulate the packet transmission more realistically, and to get the occupied buffer size of one node in different moments and all nodes in fixed time. On this basis, we research the chaotic characteristics of the occupied buffer size by calculating the max Lyapunov exponent. The results show that there are chaotic characteristics in the occupied buffer size of individual node and stability in the occupyed buffer size of a system which is made up of all nodes. It reflects that there is emergency feature in network packet transmission system.

关 键 词：元胞自动机 缓存大小 LYAPUNOV指数 混沌性 稳定性 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]