| MIMO—OFDM系统中降低峰均功率比技术的研究 |
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| 引用本文： | 张慧,孙立香.MIMO—OFDM系统中降低峰均功率比技术的研究[J].山西电子技术,2011(6):55-57. |
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| 作者姓名： | 张慧 孙立香 |
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| 作者单位： | 盐城纺织职业技术学院; |
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| 摘 要： | 多输入多输出正交频分复用（MIMO-OFDM）系统已成为第四代无线通信的关键技术之一，而系统所产生的高峰均功率比（PAPR）信号是限制MIMO-OFDM技术实用化的主要障碍。针对此，对MIMO-OFDM系统中现有的几种降低PAPR的传统及改进算法进行了详细介绍，并描述了改进算法相对于传统算法的主要优点。
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| 关 键 词： | 峰均功率比 MIMO-OFDM系统 天线旋转取反 协同选择性映射法 |
Study of Peak-to-Average Power Ratio Reduction in MIMO-OFDM Systems |
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| Zhang Hui,Sun Li-xiang.Study of Peak-to-Average Power Ratio Reduction in MIMO-OFDM Systems[J].Shanxi Electronic Technology,2011(6):55-57. |
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| Authors: | Zhang Hui Sun Li-xiang |
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| Affiliation: | Zhang Hui,Sun Li-xiang(Yancheng Textile Vacational Technology College,Yancheng Jiangsu 224005,China) |
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| Abstract: | Multiple-input multiple-output orthogonal frequency division multiplexing(MIMO-OFDM) has been one of the key techniques in 4G wireless communication systems.But the high peak-to-average power ratio(PAPR) of transmitted signals is a principle drawback for the application of MIMO-OFDM.In this paper,several conventional and improved methods for reducing the PAPR are introduced in detail.Furthermore,the main advantages of improved methods comparing with the conventional ones are depicted. |
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| Keywords: | peak to average power ratio MIMO-OFDM systems cross-antenna rotation and inversion concurrent selected mapping |
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