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无线局域网中TXOP动态分配方法 被引量:4

Dynamic TXOP Allocation Method in WLAN
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摘要 为解决802.11e网络的公平性问题,提出一种TXOP动态分配方法,在节点传输前,根据碰撞次数估计碰撞程度,根据估计得到的网络负载情况调整节点的TXOP,使不同优先级、不同传输速率的业务获得相应的TXOP值。理论分析和仿真结果表明,该方法在采用不同发送速率的业务间,能保证吞吐量的公平性,并减少分组重传次数,降低分组传输平均时延。 In order to solve the fairness problem in 802.11e networks, a method called DTAF(Dynamic TXOP Allocation for Fairness) is proposed, which utilizes the collision times to estimate contention degree before transmission, turns TXOP, and at the same time, solves the unfairness problem in the networks employing the multi-rate scheme. Theoretic analysis and simulaiton results show that DTAF has better performance in retransmission times, packets average transmission delay and fairness among stations employing varying data rates.
出处 《计算机工程》 CAS CSCD 北大核心 2010年第7期11-13,共3页 Computer Engineering
基金 国家自然科学基金资助重点项目(60832005) 国家自然科学基金资助项目(60803151) 国家“863”计划基金资助项目(2007AA01Z215) NSFC-广东联合基金资助重点项目(U0835004) 高等学校学科创新引智计划基金资助项目(B08038)
关键词 增强型分布式信道接入 多速率 公平性 Enhanced Distributed Channel Access(EDCA) multi-rate fairness
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参考文献7

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同被引文献24

  • 1何宏,李建东,盛敏,李维英.基于IEEE802.11协议的EDCC算法研究[J].计算机学报,2005,28(1):25-34. 被引量:5
  • 2何宏,李建东,盛敏,李维英.一种基于慢退避思想的SD_DCC退避算法及其性能分析[J].计算机学报,2005,28(11):1907-1914. 被引量:8
  • 3刘拥民,蒋新华,年晓红,鲁五一.无线网络拥塞控制最新研究进展[J].计算机工程与应用,2007,43(24):24-28. 被引量:6
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  • 9宋文,方旭明.无线Mesh网络公平感知路由算法设计与仿真[J].系统仿真学报,2007,19(18):4320-4325. 被引量:9
  • 10TeareD,PaquetC.著吴剑章,余晓,吕红艳译.园区网设计[M].北京:人民邮电出版社,2007:35-37.

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