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无线城域网中中心调度的竞争解决方案 被引量：1

Centralized scheduling contention resolution for wireless metropolitan area networks
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摘要 针对无线城域网PMP模式下的竞争问题,提出了一种中心调度的竞争解决方案CSCR(centralizedschedulingcontentionresolution)。通过对每一时间帧内活动用户站(subscriberstations)数目的预测,基站(basestation)给所有用户站提供了一个优化的竞争窗口,所有用户站都采用该窗口独立地参与竞争。理论分析和模拟结果表明,与IEEE802.16推荐的基于二进制指数回退BEB(binaryexponentialbackoff)算法的方案相比,CSCR方案不但易于实现,而且能更加有效地利用无线资源,同时减少请求接入延时。 A novel centralized scheduling contention resolution （CSCR） was presented for the contention problem in PMP model of wireless metropolitan area networks. In each time frame, by estimating the number of active subscriber stations （SSs）, the base station （BS） provides an optimal window to all SSs. Each SS then individually participates with this window in transmission. In comparison with the contention resolution based on truncated binary exponential backoff （BEB） algorithm given by IEEE 802.16, the CSCR resolution is not only easy to be implemented and more efficient in utilizing the transmission opportunities, but also can reduce the delay of admission. This was proved by our theoretical analysis and simulations.
作者 陆文彦 贾维嘉 王国军 杜文峰
机构地区 中南大学信息科学与工程学院
出处 《通信学报》 EI CSCD 北大核心 2006年第12期83-91,97,共10页 Journal on Communications
基金 国家自然科学基金资助项目(60503007) 香港研资局(CityU1039/02E) 国家重点基础研究发展计划("973"计划)基金资助项目(2003CB317003)~~
关键词 IEEE 802.16 中心调度 二进制指数回退 竞争 冲突 IEEE 802.16 centralized scheduling binary exponential backoff contention collision
分类号 TP301 [自动化与计算机技术—计算机系统结构]
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参考文献11

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共引文献25

同被引文献6

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通信学报
2006年 第12期

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