| Improvements on Analytical Models for IEEE 802.11e EDCF Differential Services |
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| 作者姓名： | 张连波 方旭明 单瑛 |
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| 作者单位： | School of Information Science ＆ Technology, Southwest Jimaotong University, Chengdu 610031, China |
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| 基金项目： | Foundation item Huawei R＆D Project of China （No. YBNP2004015） and SWJTU Fund of China （No. 2005B02） |
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| 摘 要： | Zhu introduced typical analytical models to simulate the 802. 11e EDCF channel access protocol. But our analysis indicates that there are some inaccurate derivations in his presentation. This paper intends to improve analytical model with some corrections. Furthermore, for the probability of the channel being busy pb in Zhu＇s model, different points and analysis method are proposed. When the network is under saturation condition, the new results about the probabilities of collision and channel busy, transmission probabilities, successful transmission probabilities, throughput and MAC layer latency are presented.
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| 关 键 词： | 分析模型 电机工程师协会 微分技术 技术性能 |
| 文章编号： | 1005-2429（2006）03-0218-05 |
Improvements on Analytical Models for IEEE 802. 11e EDCF Differential Services |
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| Zhang Lianbo,Fang Xuming,Shan Ying.Improvements on Analytical Models for IEEE 802.11e EDCF Differential Services[J].Journal of Southwest Jiaotong University,2006,14(3):218-222. |
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| Authors: | Zhang Lianbo Fang Xuming Shan Ying |
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| Abstract: | Zhu introduced typical analytical models to simulate the 802. 11e EDCF channel access protocol. But our analysis indicates that there are some inaccurate derivations in his presentation. This paper intends to improve analytical model with some corrections.Furthermore, for the probability of the channel being busy Pb in Zhu's model, different points and analysis method are proposed.When the network is under saturation condition, the new results about the probabilities of collision and channel busy, transmission probabilities, successful transmission probabilities, throughput and MAC layer latency are presented. |
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| Keywords: | 802 11e HDCF Performance Analysis Differential services |
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