| 高效的下行多用户MIMO系统天线选择算法 |
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| 引用本文： | 郭文卓,张曙,任大孟.高效的下行多用户MIMO系统天线选择算法[J].吉林大学学报(工学版),2010,40(6). |
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| 作者姓名： | 郭文卓 张曙 任大孟 |
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| 基金项目： | 国防科工委基础研究基金 |
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| 摘 要： | 首先分析了一种基于最大信拥噪比准则的多用户发射体制,推导出了其发射权值和信拥噪比的闭式解,然后在此基础上提出了一种高性能的天线选择及其快速算法。仿真结果表明,同现有的迫零方案相比,这种基于最大信拥噪比准则进行预编码的天线选择策略,能够获得较低的误码率,因而具有更优的综合性能。
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| 关 键 词： | 通信技术 MIMO 多用户 天线选择 下行链路 |
Novel method on antenna selection for downlink multiuser MIMO systems |
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| GUO Wen-zhuo,ZHANG Shu,REN Da-meng.Novel method on antenna selection for downlink multiuser MIMO systems[J].Journal of Jilin University:Eng and Technol Ed,2010,40(6). |
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| Authors: | GUO Wen-zhuo ZHANG Shu REN Da-meng |
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| Abstract: | For a multiuser precoding scheme based on the Signal-to-Jamming-plus-Noise Ratio(SJNR) maximization criterion,closed-form expressions of its beamforming weights and SJNR are derived. Furthermore,using these analytical expressions,an efficient antenna selection algorithm of high performance and its low complexity version are presented.Simulation results show that,compared with the conventional zero-forcing precoding method,the proposed antenna selection scheme based on the max SJNR criterion,can achieve lower Bit-Error Ratio(BER) ,and therefore outperforms the zeroforcing method comprehensively. |
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| Keywords: | communication technology MIMO multiuser antenna selection downlink |
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