| 无线局域网IEEE 802.11的一种高效调度方案 |
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| 引用本文： | 沈乐乐,黄爱苹,张朝阳.无线局域网IEEE 802.11的一种高效调度方案[J].电路与系统学报,2007,12(3):112-116,111. |
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| 作者姓名： | 沈乐乐 黄爱苹 张朝阳 |
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| 作者单位： | 1. 浙江大学,信息与通信工程研究所,浙江,杭州,310027
2. 浙江大学,信息与通信工程研究所,浙江,杭州,310027;东南大学,移动通信国家重点实验室,江苏,南京,210096 |
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| 基金项目： | 国家重点实验室基金，国家自然科学基金，浙江省自然科学基金 |
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| 摘 要： | 深入分析了无线局域网IEEE 802.11系列标准的现有调度方案,提出了一种基于IEEE 802.11e标准中HCF接入模式的高效调度方案SA-Multipoll.设计了调度帧结构和调度时序,推导了满足时延和带宽要求的准入协商和调度效率公式.通过数值计算和仿真结果证实了SA-Multipoll的调度效率高于singlepoll,也高于现有multipoll方案中效率较高的CP-Multipoll方案.
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| 关 键 词： | 无线局域网 调度效率 |
| 文章编号： | 1007-0249（2007）03-0112-05 |
| 修稿时间： | 2005-02-252005-04-25 |
An efficient scheduling mechanism for IEEE 802.11 wireless LANs |
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| SHEN Le-le,HUANG Ai-ping,ZHANG Zhao-yang.An efficient scheduling mechanism for IEEE 802.11 wireless LANs[J].Journal of Circuits and Systems,2007,12(3):112-116,111. |
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| Authors: | SHEN Le-le HUANG Ai-ping ZHANG Zhao-yang |
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| Affiliation: | 1. Institute of Information and Communication Engineering, Zhejiang University, Hangzhou 310027, China; 2. National Key Lab of Mobile Communications, Southeast University, Nanjing 210096, China |
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| Abstract: | An in-depth survey is provided on recent research in scheduling mechanisms for IEEE 802.11 wireless local area network(WLAN) and an efficient multipolling mechanism,SA-Multipoll,is proposed based on Hybrid Coordination Function(HCF) of Standard IEEE 802.11e.The polling sequence and the polling frame formats are designed.The formulae for admission control are derived to satisfy delay and bandwidth requirements.The polling efficiency formulae are also presented.Numerical results show that SA-Multipoll is more efficient than CP-Multipoll which is a multipolling mechanism of higher polling efficiency as compared with other existing multipolling mechanisms.Simulations verify that the polling efficiency of SA-Multipoll is much higher than that of singlepoll. |
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| Keywords: | QoS multipoll |
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