| WLAN中基于混合模式的接纳控制算法 |
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| 引用本文： | 孟曼,刘宴兵.WLAN中基于混合模式的接纳控制算法[J].计算机应用,2010,30(6):1451-1454. |
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| 作者姓名： | 孟曼 刘宴兵 |
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| 作者单位： | 1. 重庆市重庆邮电大学2. 重庆邮电大学 |
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| 基金项目： | 国家自然科学基金资助项目(60973160);;重庆市自然科学基金资助项目(2009BA2044;2008BA2044);;重庆市教委项目(KJ090529) |
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| 摘 要： | 针对WLAN标准IEEE 802.11e中 EDCA不能提供定量的服务质量(QoS)的问题,提出了一种混合模式(基于模型和测量)的接纳控制算法。通过建立退避实例的各个状态转移的Markov模型,利用贝塞尔削减规则得出网络性能指标的解析表达式,并根据测量的信道的实时状况预测新业务流可获得的吞吐量,最后提出了一种基于吞吐量的接纳控制算法。实验结果表明,该算法保证了已经接入业务流的服务质量,同时接纳了更多的新业务流,提高了网络的吞吐量。
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| 关 键 词： | IEEE 802.11e EDCA 马尔可夫模型 接纳控制 服务质量 |
| 收稿时间： | 2010-01-06 |
| 修稿时间： | 2010-03-01 |
Mixed-mode-based admission control in WLAN |
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| MENG Man,LIU Yan-bing.Mixed-mode-based admission control in WLAN[J].journal of Computer Applications,2010,30(6):1451-1454. |
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| Authors: | MENG Man LIU Yan-bing |
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| Affiliation: | College of Computer Science and Technology/a>;Chongqing University of Posts and Telecommunications/a>;Chongqing 400065/a>;China |
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| Abstract: | A mixed-mode (model and measurement)-based admission control algorithm was proposed concerning that IEEE 802.11e EDCA cannot offer quantitative QoS.States transition Markov models of back-off instance were proposed,the analytical expression of network performance indicators could be obtained through Beizer reduction rules,and the achievable throughputs of the new arrived flows were predicted according to measured channel states.Finally admission control algorithm based on throughput was proposed.This scheme... |
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| Keywords: | IEEE 802 11e EDCA Markov model admission control QoS |
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