动态统计复用接入用于无线室内覆盖增强研究  

Research of dynamic statistical multiplexing access in enhancement of wireless indoor coverage

作　　者：朱山[1] 刘文予[1] 王邦[1] 李琰[2] 

机构地区：[1]华中科技大学电子与信息工程系,湖北武汉430074 [2]云南民族大学电气信息工程学院,云南昆明650500

出　　处：《华中科技大学学报（自然科学版）》2012年第7期52-56,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家科技重大专项基金资助项目(2009ZX03003-007-03);国家高技术研究发展计划资助项目(2009AA011202)

摘　　要：为了提高室内无线传输的吞吐量和时延性能,提出了将基于动态统计复用(DSM)的接入技术用于室内无线覆盖的方法,该方法是基于流水线并行计算为特色的动态统计复用体系结构.通过对国际流行的几种接入技术的对比,分析了该技术与几种经典无线接入方式的性能特点,指出经典接入技术面临无线宽带化传输的需求而存在的局限性.从理论上分析动态统计复用可以逼近吞吐量和时延的极限值,并通过仿真实验,给出吞吐率和时延曲线,比较分析了它的有效性.仿真结果表明:该技术对提升系统主要有效性指标具有重要作用,可为提高室内无线传输与覆盖性能提供新的方法与途径.To improve the indoor wireless transmission throughput and time delay performance,a method was proposed to use dynamic statistical multiplexing（DSM）access technology in indoor wireless coverage,which was a kind of dynamic statistical multiplexing system architecture based on assembly line parallel computing as the feature.By comparison with several classical wireless access technology,performance features of this method and other classical wireless access technology were analyzed,and the limitations of all these classic access technology facing the needs of wireless broadband transmission clearly were pointed out.The theoretical limit of transmission throughput and time delay that dynamic statistical multiplexing could approach was theoretically analyzed,the throughput rate and delay curve through simulation experiment was given and the effectiveness of the method was comparatively analyzed.Simulation results show that this technology has main effect to improve main performance indexes of the system and can provide ways and means to improve the indoor wireless transmission and covering performance.

关 键 词：无线接入 吞吐率 时延 室内无线覆盖 动态统计复用 

分 类 号：TN914.5[电子电信—通信与信息系统]