| 基于V-BLAST OFDM系统的天线选择算法 |
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| 引用本文： | 池连刚,武妍艳,张欣,杨大成.基于V-BLAST OFDM系统的天线选择算法[J].北京邮电大学学报,2006,29(6):94-97. |
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| 作者姓名： | 池连刚 武妍艳 张欣 杨大成 |
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| 作者单位： | 北京邮电大学,电信工程学院,北京,100876;北京邮电大学,电信工程学院,北京,100876;北京邮电大学,电信工程学院,北京,100876;北京邮电大学,电信工程学院,北京,100876 |
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| 摘 要： | 研究了天线选择，提出了一种基于垂直－贝尔实验室分层空时结构(V-BLAST)与正交频分复用(OFDM)相结合的系统的发送天线选择算法，使选用的发送天线组合，对所有子载波的最小信号噪声干扰比（SNIR）最大化，以较好地解决V-BLAST系统检测要求信道的无线环境中有丰富的散射体，否则会严重恶化系统误比特率性能的问题。理论分析和仿真试验证明，应用该算法明显改善了系统的误比特率性能。
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| 关 键 词： | 垂直-贝尔实验室分层空时结构 正交频分复用 多输入多输出 天线选择 |
| 文章编号： | 1007-5321（2006）06-0094-04 |
| 收稿时间： | 2005-11-10 |
| 修稿时间： | 2005年11月10日 |
An Antenna Selection Algorithm Based on V-BLAST OFDM Systems |
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| CHI Lian-gang,WU Yan-yan,ZHANG Xin,YANG Da-cheng.An Antenna Selection Algorithm Based on V-BLAST OFDM Systems[J].Journal of Beijing University of Posts and Telecommunications,2006,29(6):94-97. |
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| Authors: | CHI Lian-gang WU Yan-yan ZHANG Xin YANG Da-cheng |
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| Affiliation: | School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | In vertical-Bell laboratory layered space-time(V-BLAST) systems,the detection of received signal needs rich scattering channel environment,otherwise the system bit error rate(BER) performance descends seriously.A transmit antenna selection algorithm based on V-BLAST orthogonal frequency division multiplexing(OFDM) systems is proposed to solve this problem in this paper.This algorithm selects the transmit antenna subset that will maximize the minimum signal-to-noise-plus-interference ratio(SNIR) on each sub-carrier.Theoretical analysis and computer simulation results show that the system BER performance is significantly improved by this algorithm. |
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| Keywords: | vertical-Bell laboratory layered space-time orthogonal frequency division multiplexing multiple-input multiple-output antenna selection |
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