| A novel MMSE based codebook construction for MIMO precoded spatial multiplexing with limited feedback |
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| 作者姓名： | SHE Feng LUO Han-wen WANG Xin |
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| 作者单位： | Department of Electronic Engineering，Shanghai Jiao Tong University，Shanghai 200240，China |
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| 基金项目： | Preject (No.60572157) the National Natural Science Foundation of China |
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| 摘 要： | This paper deals with the design and performance analysis of the transmission precoder optimization for multiple-input multiple-output (MIMO) systems with limited feedback of channel state information (CSI). We assume that the receiver can get perfect channel knowledge by channel estimation while the transmitter only has partial channel knowledge from limited feedback. We present a minimum mean square error (MMSE) criterion based codebook construction algorithm for MIMO pre- coded spatial multiplexing systems under a specific average power constraint. The optimal transmitter structure is employed in this paper. Simulation results show that the MMSE criteria based codebook construction algorithm with hybrid design of power allocation and precoding can achieve better performance than that of equal power allocation based codebook of previous research.
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| 关 键 词： | 移动通信 电报 密码本 反馈技术 |
| 收稿时间： | 2007-04-08 |
| 修稿时间： | 2007-08-10 |
A novel MMSE based codebook construction for MIMO precoded spatial multiplexing with limited feedback |
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| SHE Feng LUO Han-wen WANG Xin.A novel MMSE based codebook construction for MIMO precoded spatial multiplexing with limited feedback[J].Journal of Zhejiang University Science,2007,8(12):1894-1900. |
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| Authors: | She Feng Luo Han-wen Wang Xin |
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| Institution: | (1) Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China |
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| Abstract: | This paper deals with the design and performance analysis of the transmission precoder optimization for multiple-input multiple-output (MIMO) systems with limited feedback of channel state information (CSI). We assume that the receiver can get perfect channel knowledge by channel estimation while the transmitter only has partial channel knowledge from limited feedback. We present a minimum mean square error (MMSE) criterion based codebook construction algorithm for MIMO precoded spatial multiplexing systems under a specific average power constraint. The optimal transmitter structure is employed in this paper. Simulation results show that the MMSE criteria based codebook construction algorithm with hybrid design of power allocation and precoding can achieve better performance than that of equal power allocation based codebook of previous research. |
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| Keywords: | Multiple-input multiple-output (MIMO) Precoding Channel state information (CSI) Feedback |
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