| 具有最低竞争吞吐率保证的准入控制算法 |
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| 引用本文： | 付晓蕊,张连芳. 具有最低竞争吞吐率保证的准入控制算法[J]. 软件学报, 2005, 16(7): 1296-1304 |
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| 作者姓名： | 付晓蕊 张连芳 |
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| 作者单位： | 天津大学,计算机科学与技术系,天津,300072;天津大学,计算机科学与技术系,天津,300072 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No.90104015 (国家自然科学基金); the Natural Science Foundation of Tianjin of China under Grant No.043600311 (天津市自然科学基金) |
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| 摘 要： | 研究了IEEE 802.11 PCF(point coordination function)机制下集成实时业务和非实时业务的性能,提出了一种新的实时业务准入控制算法.该算法根据网络中的非实时业务负载情况动态计算准入阈值,并对准入的实时业务结点按服务指标进行轮询,从而在对实时业务提供参数化QoS(quality of service)的同时,使非实时业务吞吐率保持在可接受的水平上.仿真实验验证了算法的有效性.
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| 关 键 词： | IEEE802.11 PCF(point coordination function) QoS(quality of service) 准入控制 |
| 收稿时间： | 2003-12-22 |
| 修稿时间： | 2003-12-22 |
An Admission Control Algorithm with Minimum Contending Throughput Guarantee |
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| FU Xiao-Rui and ZHANG Lian-Fang. An Admission Control Algorithm with Minimum Contending Throughput Guarantee[J]. Journal of Software, 2005, 16(7): 1296-1304 |
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| Authors: | FU Xiao-Rui and ZHANG Lian-Fang |
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| Abstract: | In this paper, the performance of integrating real-time and non real-time traffic in the PCF (point coordination function) mode of IEEE 802.11 is studied, and a novel real-time traffic admission control algorithm is proposed. By changing the admission threshold dynamically according to the current load of non real-time traffic and polling the admitted real-time nodes according to their service index, the proposed algorithm can provide parameterized QoS (quality of service) for real-time traffic, while at the same time, keep the throughput of non real-time traffic at an acceptable level. The validity of the admission control algorithm is verified by simulation. |
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| Keywords: | IEEE 802.11 PCF (point coordination function) QoS (quality of service) admission control |
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