无线局域网络模型建立与性能分析

摘要

基于EDCA接入方式分析了无线局域网传输协议,IEEES02.1le标准为各个服务类别制定了不同的信道竞争参数数值,使得无线局域网具备了业务区分能力;通过对无线局域网传输协议EDCA接入方式进行建模,分析队列在接入过程中的竞争行为,进而准确估计各个队列的接入延迟;并以每个缓存队列以M/G/1/K排队模型为基础进行定量分析,结果表明,该模型能够准确地描述资源竞争情况,接入延迟计算法方法可根据不同系统参数精确地计算接入延迟性能。%Based on the analysis of EDCA access methods for wireless local area network transport protocols,IEEES02.1le standards established for each type of service competition in different channel parameter values,making the wireless LAN has the ability to distinguish between business;by transport protocol for wireless LAN access methods for EDCA modeling,analysis,access to the queue in the process of competition,and thus an accurate estimate of the access delay of each queue;and to each of the buffer queue to M/G/1/K queuing model as the basis for quantitative analysis,the results show that the model can accurately describe the resource competition,access delay calculation method according to the different system parameters to accurately calculate the access delay performance.