| 利用公共信道部分反馈信道信息的多用户分集方案及其性能 |
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| 引用本文： | 龚 明,邱 玲,朱近康. 利用公共信道部分反馈信道信息的多用户分集方案及其性能[J]. 通信学报, 2005, 26(11): 12-21. DOI: 10.11959/j.issn.1000-436x.2020237 |
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| 作者姓名： | 龚 明 邱 玲 朱近康 |
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| 作者单位： | 中国科学技术大学,个人通信与扩频实验室,安徽,合肥,230027 |
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| 基金项目： | 国家自然科学基金资助项目(60390540)国家“863”重大项目资助课题(2003AA123310) |
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| 摘 要： | 通过定量分析利用随机波束成型技术的多用户分集系统的吞吐率性能,在此基础上提出利用公共信道部分反馈信道信息的多用户分集方案并分析了它的性能,证明通过设置合理的门限,部分反馈信道度量几乎不降低系统吞吐率,但可以大量节省上行反馈的开销,当采用合适的多址方式,在一定带宽下,系统可以容纳更多的用户。
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| 关 键 词： | 多用户分集 多天线 部分反馈 吞吐率 |
| 文章编号： | 1000-436X（2005）10-0012-06 |
| 收稿时间： | 2004-08-16 |
| 修稿时间： | 2005-05-10 |
Multiuser diversity scheme with partial feedback of channel metric on common uplink channel and its performance |
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| GONG Ming,QIU Ling,ZHU Jin-kang. Multiuser diversity scheme with partial feedback of channel metric on common uplink channel and its performance[J]. Journal on Communications, 2005, 26(11): 12-21. DOI: 10.11959/j.issn.1000-436x.2020237 |
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| Authors: | GONG Ming QIU Ling ZHU Jin-kang |
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| Affiliation: | 1. College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China;2. Department of Electrical and Computer Engineering,Auburn University,Auburn 36849,USA |
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| Abstract: | By investigating the throughput performance of multiuser diversity system with random beamforming, a multiuser diversity scheme with partial feedback of channel metric on common uplink channel were proposed. Performance analysis proves that with proper threshold, partial feedback of channel quality can pay much less for uplink feedback with little decrease of system throughput, which means that the system will accommodate more user within given bandwidth. |
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| Keywords: | multiuser diversity multiple antenna partial feedback throughput |
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