| Hybrid transmit antenna selection and maximal-ratio transmission systems |
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| 作者单位： | Zhu Yaolin（School of Communication and Information Engineering, Shanghai Univ., Shanghai 200072,P.R.China） ;Fang Yong（School of Communication and Information Engineering, Shanghai Univ., Shanghai 200072,P.R.China） ;Wang Min（School of Communication and Information Engineering, Shanghai Univ., Shanghai 200072,P.R.China） ; |
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| 基金项目： | 国家自然科学基金;上海市优秀学科带头人项目;上海市重点学科建设项目 |
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| 摘 要： | Maximal-ratio transmission systems with transmit antenna selection is investigated. According to the order statistics of channel fiat fading coefficients, the closed-form expressions are derived for average SNR with any amount of RF chains and average BER with two RF chains, respectively. The algorithm for calculating the minimum of total transmit antennas is presented in terms of reduced RF chains. The method of quantizing transmit precoders is employed in this study to decrease feedback information. Simulation results demonstrate the superiority of the proposed systems under full and quantized transmit precoders. The SNR of the proposed systems has been less degraded by the quantization of transmit precoder than that of pure maximal-ratio transmission systems.
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| 收稿时间： | 2006-01-27 |
Hybrid transmit antenna selection and maximal-ratio transmission systems |
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| Zhu Yaolin,Fang Yong,Wang Min. Hybrid transmit antenna selection and maximal-ratio transmission systems[J]. Journal of Systems Engineering and Electronics, 2007, 18(2): 229-235. DOI: 10.1016/S1004-4132(07)60079-6 |
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| Authors: | Zhu Yaolin Fang Yong Wang Min |
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| Affiliation: | School of Communication and Information Engineering, Shanghai Univ., Shanghai 200072,P.R.China |
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| Abstract: | Maximal-ratio transmission systems with transmit antenna selection is investigated. According to the order statistics of channel fiat fading coefficients, the closed-form expressions are derived for average SNR with any amount of RF chains and average BER with two RF chains, respectively. The algorithm for calculating the minimum of total transmit antennas is presented in terms of reduced RF chains. The method of quantizing transmit precoders is employed in this study to decrease feedback information. Simulation results demonstrate the superiority of the proposed systems under full and quantized transmit precoders. The SNR of the proposed systems has been less degraded by the quantization of transmit precoder than that of pure maximal-ratio transmission systems. |
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| Keywords: | Maximal-ratio transmission transmit antenna selection Lloyd quantization |
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