| 正交空间复用系统的相位旋转预编码 |
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| 引用本文： | 田心记,袁超伟,胡紫巍,王秋杰.正交空间复用系统的相位旋转预编码[J].北京邮电大学学报,2010,33(6):68-71. |
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| 作者姓名： | 田心记 袁超伟 胡紫巍 王秋杰 |
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| 作者单位： | 北京邮电大学,信息与通信工程学院,北京,100876;北京邮电大学,信息与通信工程学院,北京,100876;北京邮电大学,信息与通信工程学院,北京,100876;北京邮电大学,信息与通信工程学院,北京,100876 |
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| 摘 要： | 为了减少反馈信息，提出了适用于正交空间复用（OSM）系统的相位旋转预编码(PR OSM)，该预编码可使调制信号的虚部分量旋转适当的角度. 与OSM系统的功率分配预编码(PL OSM)相比，新方案减少了反馈信息，且降低了获得预编码参数的计算量. 仿真结果表明，当可靠性相同时，新方案比PL OSM节约了4bit的反馈信息.
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| 关 键 词： | 正交空间复用 预编码 相位旋转 |
| 收稿时间： | 2009-11-20 |
Phase Rotation Precoding for Orthogonalized Spatial Multiplexing System |
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| TIAN Xin-ji,YUAN Chao-wei,HU Zi-wei,WANG Qiu-jie.Phase Rotation Precoding for Orthogonalized Spatial Multiplexing System[J].Journal of Beijing University of Posts and Telecommunications,2010,33(6):68-71. |
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| Authors: | TIAN Xin-ji YUAN Chao-wei HU Zi-wei WANG Qiu-jie |
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| Abstract: | To decrease feedback overhead, a phase rotation precoding for orthogonalized spatial multiplexing (PR OSM) system is proposed, in which a proper rotation is set at the imaginary part of modulated signals. Compared with the power allocation precoding of OSM (PL OSM), the feedback information of this scheme is decreased and the complexity of calculating precoding parameter is also reduced. Simulation results show that with the same reliability of PL OSM, the proposed scheme saves four bits feedback overhead. |
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| Keywords: | orthogonalized spatial multiplexing precoding phase rotation |
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