| 幅度受限MIMO系统的功率分配策略研究 |
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| 引用本文： | 彭晶波,卫国.幅度受限MIMO系统的功率分配策略研究[J].中国科学院研究生院学报,2008,26(6):802-809. |
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| 作者姓名： | 彭晶波 卫国 |
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| 作者单位： | 中国科学技术大学电子工程与信息科学系,合肥,230027 |
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| 基金项目： | 国家自然科学基金重大项目 |
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| 摘 要： | 研究了幅度受限环境下MIMO（Multiple-Input Multiple-Output）系统的功率分配策略，提出了一种适用于该环境的功率分配算法。该算法充分考虑了功放特性，能够抑制限幅引起的非线性失真，更加合理地分配资源。仿真结果也表明，在幅度受限环境下，信号功率接近限幅门限时，传统的注水算法性能会有明显的恶化，而新算法能够保持最优性能。
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| 关 键 词： | 无线功率分配 幅度受限系统 非线性失真抑制 |
A study of power allocation strategy for amplitude-limited MIMO system |
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| PENG Jing-Bo,WEI Guo.A study of power allocation strategy for amplitude-limited MIMO system[J].Journal of the Graduate School of the Chinese Academy of Sciences,2008,26(6):802-809. |
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| Authors: | PENG Jing-Bo WEI Guo |
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| Institution: | Department of Electronic Engineering and Information Science , University of Science and Technology of China, Hefei 230027, China |
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| Abstract: | Power allocation strategy for amplitude-limited MIMO system is studied and a new power allocation method is proposed. In this new method, nonlinear distortion caused by amplitude limiting is taken into account to improve the transmission quality. Simulation results also show that when the amplitude of transmit signal is large, the performance of traditional water-filling method will degrade obviously while the new method could provide better performance. |
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| Keywords: | power allocation amplitude-limited system nonlinear distortion suppression |
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