| 混合天线选择的闭环发射分集系统研究 |
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| 引用本文： | 方勇,朱耀麟.混合天线选择的闭环发射分集系统研究[J].上海大学学报(英文版),2008,12(1):61-65. |
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| 作者姓名： | 方勇 朱耀麟 |
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| 作者单位： | School of Communication and Information Engineering, Shanghai University, Shanghai 200072, P. R. China |
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| 基金项目： | 国家自然科学基金
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The Shanghai Excellent Academic Leader Project
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the Shanghai Leading Academic Discipline Project |
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| 摘 要： | The paper investigates closed-loop transmit diversity （CLTD） systems with antenna selection technique. The expected received signal-noise-ratio （RxSNR） of the proposed systems is analyzed and compared with CLTD systems. An algorithm is proposed for determining the number of increased transmit antennas in terms of a reduced RF chains without performance degradation. Since a feedback channel is bandwidth-limited, we present a method of quantizing transmit-weight vectors. Simulation results demonstrate advantage of the proposed systems with full and quantized feedback information. Quantized feedback has less effect on the proposed systems than CLTD systems.
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| 关 键 词： | 混合天线选择 闭环发射分集系统 通讯技术 电子通讯 |
| 文章编号： | 10.1007/s11741-008-0112-2 |
| 收稿时间： | 2006-08-10 |
| 修稿时间： | 2006-10-25 |
Closed-loop transmit diversity systems with hybrid antenna selection |
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| FANG Yong,ZHU Yao-lin.Closed-loop transmit diversity systems with hybrid antenna selection[J].Journal of Shanghai University(English Edition),2008,12(1):61-65. |
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| Authors: | FANG Yong ZHU Yao-lin |
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| Institution: | School of Communication and Information Engineering, Shanghai University, Shanghai 200072, P. R. China |
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| Abstract: | The paper investigates closed-loop transmit diversity (CLTD) systems with antenna selection technique. Theexpected received signal-noise-ratio (RxSNR) of the proposed systems is analyzed and compared with CLTD systems. Analgorithm is proposed for determining the number of increased transmit antennas in terms of a reduced RF chains withoutperformance degradation. Since a feedback channel is bandwidth-limited, we present a method of quantizing transmit-weightvectors. Simulation results demonstrate advantage of the proposed systems with full and quantized feedback information.Quantized feedback has less effect on the proposed systems than CLTD systems. |
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| Keywords: | antenna selection closed-loop transmit diversity (CLTD) quantized feedback |
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