| 一种基于802.11e动态自适应调整竞争窗口的算法* |
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| 引用本文： | 朱艳飞,宋顺林,姜自雷. 一种基于802.11e动态自适应调整竞争窗口的算法*[J]. 计算机应用研究, 2011, 28(3): 1102-1104. DOI: 10.3969/j.issn.1001-3695.2011.03.087 |
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| 作者姓名： | 朱艳飞 宋顺林 姜自雷 |
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| 作者单位： | 江苏大学计算机科学与通信工程学院,江苏镇江,212013 |
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| 基金项目： | 省自然科学基金资助项目 |
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| 摘 要： | 为了进一步改善高负载状况下服务质量的性能，在原有的IEEE 802.11e 增强型分布式协调功能的基础上，本文提出了一种基于竞争窗口动态自适应调整的算法。该算法首先采用时隙利用率因子估计网络当前负载状况，然后在不同优先级下根据时隙利用率动态调整竞争窗口，降低了信道接入的竞争，提高了网络的性能。仿真实验表明，该算法在保证实时业务要求的同时，能够有效降低时延，显著提高无线局域网的吞吐量。
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| 关 键 词： | 服务质量；增强型分布式协调功能；竞争窗口；时隙利用率 |
| 收稿时间： | 2010-07-21 |
| 修稿时间： | 2011-02-13 |
Dynamic adaptive tuning of contention window algorithm for IEEE 802.11e |
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| ZHU Yan-fei,SONG Shun-lin,JIANG Zi-lei. Dynamic adaptive tuning of contention window algorithm for IEEE 802.11e[J]. Application Research of Computers, 2011, 28(3): 1102-1104. DOI: 10.3969/j.issn.1001-3695.2011.03.087 |
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| Authors: | ZHU Yan-fei SONG Shun-lin JIANG Zi-lei |
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| Affiliation: | ZHU Yan-fei,SONG Shun-lin,JIANG Zi-lei(School of Computer Science & Telecommunication Engineering,Jiangsu University,Zhenjiang Jiangsu 212013,China) |
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| Abstract: | To further improve quality of service in high traffic loads,this paper proposed an algorithm based on contention window dynamic adaptive tuning for IEEE 802.11e enhanced distributed coordination function.This algorithm was that every station in the different priority tuned contention window dynamicly,according to the current network load adopting the slot utilization to evaluate,thus reduced contention in channel access and improved the performance of the network.Simulation results prove that this algorithm... |
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| Keywords: | quality of service (QoS) EDCF(enhanced distributed coordination function) contention window slot utilization |
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