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SCWGF：802.11 DCF竞争窗口增长因子自适应调整算法 被引量：2

SCWGF:A Self-Adaptive Algorithm of Adjusting Contention Window's Growth Factor for 802.11 DCF
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摘要 802.11 DCF(Distributed Coordination Function)性能的分析和改进是MAC(Medium Access Control)中一个重要的研究领域.本文在该协议的基础上提出了一种竞争窗口增长因子自适应调整算法—SCWGF(Self-adaptive algorithmof adjusting Contention Window’s Growth Factor),通过理论分析得到不同竞争节点数下竞争窗口增长因子的最优解和最优冲突时间占用率,提出了使用自适应算法使竞争窗口增长因子收敛到最优解,仿真结果表明SCWGF提高了网络的饱和吞吐量. The performance analysis and improvement of 802.11DCF（Distributed Coordination Function）is a crucial research domain of MAC（Medium Access Control）.This paper presents SCWGF（Self-adaptive algorithm of adjusting Contention Window＇s Growth Factor）based on 802.11 DCF.Firstly,we obtain the optimal contention window＇s growth factor and optimal collision occupation ratio through theoretical analysis.Self-adaptive algorithm of adjusting contention window＇s growth factor convergent to the optimal one was proposed.Simulation result illustrates that saturated throughput can be improved.
作者 姚程 俞能海 王松
机构地区 中国科学技术大学电子工程与信息科学系
出处 《电子学报》 EI CAS CSCD 北大核心 2009年第10期2134-2138,共5页 Acta Electronica Sinica
基金 国家自然科学基金“未来移动通信系统基础理论与技术研究”(No.60496310)
关键词 802.11 DCF 竞争窗口 增长因子 饱和吞吐量 802.11 DCF contention window growth factor saturated throughput
分类号 TH915.04 [机械工程]
  • 相关文献

参考文献12

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二级参考文献11

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共引文献9

同被引文献22

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二级引证文献4

电子学报
2009年 第10期

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