| 基于IEEE802.11自适应调度的QoS增强机制研究 |
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| 引用本文： | 殷爱菡,钱飞鹏,黄昌胜. 基于IEEE802.11自适应调度的QoS增强机制研究[J]. 计算机工程与应用, 2010, 46(22): 107-109. DOI: 10.3778/j.issn.1002-8331.2010.22.032 |
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| 作者姓名： | 殷爱菡 钱飞鹏 黄昌胜 |
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| 作者单位： | 华东交通大学 信息工程学院，南昌 330013 |
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| 基金项目： | 江西省研究生创新基金项目，江西省自然科学基金 |
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| 摘 要： | 针对IEEE802.11DCF的QoS问题，提出一种增强型自适应调度的分布式EASDCF机制，并通过最大竞争窗口和重传次数进行区分服务，以较高的概率保证了实时业务优先访问信道，并使得丢包率敏感的业务得到可靠保障。仿真结果表明EASDCF所采用的分级策略具有很好的效果，使无线局域网整体的吞吐性能得到提升，使资源得到更加合理的利用。
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| 关 键 词： | 最大竞争窗口 服务质量（QoS） 分布式调度机制 吞吐量 丢包率 |
| 收稿时间： | 2009-03-18 |
| 修稿时间： | 2009-5-12 |
Adaptive scheduling QoS enhancement mechanism research based on IEEE802.11 |
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| YIN Ai-han,QIAN Fei-peng,HUANG Chang-sheng. Adaptive scheduling QoS enhancement mechanism research based on IEEE802.11[J]. Computer Engineering and Applications, 2010, 46(22): 107-109. DOI: 10.3778/j.issn.1002-8331.2010.22.032 |
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| Authors: | YIN Ai-han QIAN Fei-peng HUANG Chang-sheng |
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| Affiliation: | School of Information Engineering，East China Jiaotong University，Nanchang 330013，China |
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| Abstract: | For the QoS problem of IEEE802.11DCF,an enhanced adaptive scheduling distributed EASDCF mechanism is pro- posed.This paper provides differentiated services through the largest contention window and retry limit, guarantees the re- al-time service prior access channel with higher probability, also makes packet drop rate sensitive service to be a reliable guarantee.Simulation results show EASDCF classification strategy has the very good effect.So that the performance of overall throughput in wireless local area network has enhanced,and enables the resources to obtain a more reasonable use. |
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| Keywords: | largest contention window Quality of Service（QoS） dislributed scheduling mechanism throughput packet drop rate |
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