移动因特网切换损失率研究  

Handoff Success Probability in Mobile Internet

作　　者：何晓英[1] 贾颖 张勇[1] 雷振明[1] 

机构地区：[1]北京邮电大学信息工程学院ATM中心,北京100876 [2]英特尔中国研究中心,北京100020

出　　处：《计算机研究与发展》2003年第9期1332-1336,共5页Journal of Computer Research and Development

基　　金：国家自然科学基金重大项目 ( 698962 40)

摘　　要：通过仿真研究了移动因特网网络层的硬切换和半软切换在泊松和自相似流量下的切换损失率 ,其中自相似流量下的切换损失率研究尚属首次 仿真数据表明 ,对于泊松和自相似流量 ,半软切换可以提供比硬切换更低的切换损失率 在网络负载均值和切换算法相同的情况下 ,自相似流量下的切换损失率要明显低于传统泊松流量 。Simulations using Poisson and self similarity traffic under the hard and semi soft handoffs in mobile Internet are conducted to study the opportunities of successfully transferring link during both of the two handoffs Simulation result indicates that under the two kinds of traffic, semi soft handoff can provide higher success handoff probability And the handoff success probability of self similarity traffic is higher than that of Poisson The reason for the higher success handoff rate of self similarity traffic is explained from the analysis of probability distribution of the two kinds of traffics

关 键 词：移动结点 无线接入点 硬切换 半软切换 泊松流量模型 自相似流量模型 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]