电子学报 ›› 2006, Vol. 34 ›› Issue (10): 1864-1867.

• 论文 • 上一篇    下一篇

基于分组到达率的IEEE802.11无线局域网区分服务方法

杨宗凯1, 许昌春1, 张尧学2, 程文青1   

  1. 1. 华中科技大学电子与信息工程系,湖北武汉 430074;2. 清华大学计算机系,北京 100084
  • 收稿日期:2005-09-14 修回日期:2006-07-16 出版日期:2006-10-25 发布日期:2006-10-25

Service Differentiation Scheme Based on Packet Arrival Rate Diversity for IEEE 802.11 Wireless LAN

YANG Zong-kai1, XU Chang-chun1, ZHANG Yao-xue2, CHENG Wen-qing1   

  1. 1. Department of Electronics & Information,Huazhong University of Science & Technology,Wuhan,Hubei 430074,China;2. Department of Computer Science & Technology,Tsinghua University,Beijing 100084,China
  • Received:2005-09-14 Revised:2006-07-16 Online:2006-10-25 Published:2006-10-25

摘要: 本文针对IEEE 802.11无线局域网提出了一种基于分组到达率的区分服务实现方法,建立了一种基于二维马尔可夫链的分析模型,结果表明,在控制网络总的负荷的情况下,该方法可有效实现吞吐量的区分并且能够为各个业务流提供统计意义上的吞吐量保证.另外,该方法易于实现而且不需要对IEEE 802.11硬件做任何改动.仿真实验结果表明分析模型相当准确.

关键词: IEEE 802.11, 区分服务, 分组到达率, 马尔可夫链

Abstract: A new service differentiation scheme based on packet arrival rate diversity is proposed for IEEE 802.11 WLAN.An analytical model is developed for performance evaluation.It’s shown that the new scheme can achieve effective service differentiation and statistical throughput guarantee by controlling the total offered load.The scheme requires no modifications at 802.11 MAC layer.Simulation results validate the analytical model.

Key words: IEEE 802.11, service differentiation, packet arrival rate, markov chain model

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