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IEEE 802．16竞争解决方案的性能分析 被引量：7

Performance Analysis of the Contention Resolution Scheme in IEEE 802.16
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摘要 目前,IEEE 802.16标准推荐采用基于截断二进制指数回退算法的竞争解决方案.分析了该方案同IEEE 802.11竞争机制的区别,给出了传送机会利用率u、带宽请求延时d以及带宽请求丢失率p_d等性能指标的计算方法.通过性能模拟,讨论了初始化回退窗口W、用户站数目n以及单位时间帧内传送机会数目N_(?)等参数对性能指标的影响,进而得出基站调整性能参数的一般策略.这些策略对于基站进行上行带宽资源的分配具有指导意义. At present, the mandatory contention resolution that shall be supported by IEEE 802.16 is based on truncated binary exponential backoff algorithm. In this paper, the differences of contention mechanism between IEEE 802.16 and IEEE 802.11 are analyzed. The calculations of performance metrics such as the utilization of transmission opportunity u, the delay of bandwidth request d and the drop probability of bandwidth request Pd are presented. Based on simulation results, the effects of contention parameters such as the initial window W, the number of subscriber station n and the number of transmission opportunity Nto are discussed. Some policies to adjust the parameters are also provided. These policies are useful for BS to schedule its uplink bandwidth resource.
作者 陆文彦 贾维嘉 杜文峰 张历卓
机构地区 中南大学信息科学与工程学院 深圳大学信息工程学院
出处 《软件学报》 EI CSCD 北大核心 2007年第9期2259-2270,共12页 Journal of Software
基金 Supported by the National Basic Research Program of China under Grant No.2003CB317003(国家重点基础研究发展计划(973)) Me Strategy Grant of City University of Hong Kong of China under Grant Nos.7001709 7001777(香港城市大学战略发展计划)
关键词 IEEE 802.16境争解决方案 二进制指数回退 性能分析 带宽请求 IEEE 802.16 contention resolution scheme binary exponential backoff performance analysis bandwidth request
分类号 TP301 [自动化与计算机技术—计算机系统结构]
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共引文献20

同被引文献20

  • 1贺敏伟,张光昭.多服务环境下的资源分配策略研究[J].中山大学学报（自然科学版）,2005,44(4):43-46. 被引量：1
  • 2张瀚峰,杨斌,吴伟陵.宽带无线多播轮询VoIP业务上行调度机制[J].北京邮电大学学报,2007,30(2):28-31. 被引量：3
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引证文献7

二级引证文献5

软件学报
2007年 第9期

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