| IEEE802.11e EDCA和CFB下饱和吞吐量分析 |
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| 引用本文： | 伍智超,王婷,贺昕,周正. IEEE802.11e EDCA和CFB下饱和吞吐量分析[J]. 无线电通信技术, 2006, 32(6): 27-29 |
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| 作者姓名： | 伍智超 王婷 贺昕 周正 |
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| 作者单位： | 北京邮电大学,北京,100876 |
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| 基金项目： | 国家自然科学基金项目（60372097）,北京市自然科学基金项目（4052021）.日本KDDIR＆D研究所合作项目的资助. |
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| 摘 要： | IEEE802.11eMAC草案规范对IEEE802.11无线局域网标准在QOS方面加以了补充。IEEE802.11e采用2种协调机制基于控制的综合协调可控信道接入方式HCCA和基于竞争的增强型分布式信道接入方式EDCA。主要评估EDCA和竞争空闲脉冲(contention-freeburst)CFB相结合时,在系统负载过载的情况下,改变性能参数后系统饱和吞吐量的变化,并分析系统性能参数对饱和吞吐量的影响,从而达到系统参数优化的作用。
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| 关 键 词： | EDCA CFB QOS 饱和吞吐量 NS网络仿真 |
| 文章编号： | 1003-3114（2006）06-27-3 |
| 收稿时间： | 2006-03-07 |
| 修稿时间： | 2006-03-07 |
Saturation throughput analysis of IEEE802.11e EDCA and CFB |
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| WU Zhi-chao,WANG Ting,HE Xin,ZHOU Zheng. Saturation throughput analysis of IEEE802.11e EDCA and CFB[J]. Radio Communications Technology, 2006, 32(6): 27-29 |
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| Authors: | WU Zhi-chao WANG Ting HE Xin ZHOU Zheng |
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| Affiliation: | Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | IEEE802.11e medium access control (MAC) is an emerging supplement to the IEEE802.11 wireless local area network (WLAN) standard to support quality-of-service (QOS). The 802.11e MAC is based on both centrally-controlled channel access called HCF controlled channel access (HCCA) and contention-based channel access called enhanced distributed channel access (EDCA). The paper mainly evaluates the saturation throughput of the IEEE802.11e with CFB (contention-free burst) when changing the priority parameters in overload systems, and analyzes the parameters' effect on the saturation throughput so that we can optimize the values of the parameters to get better performance. |
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| Keywords: | EDCA CFB Q0S |
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