| 基于快速独立分量分析的异步多用户检测方法 |
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| 引用本文： | 董志,黄芝平,唐贵林,刘纯武,张羿猛.基于快速独立分量分析的异步多用户检测方法[J].国防科技大学学报,2010,32(6):147-152. |
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| 作者姓名： | 董志 黄芝平 唐贵林 刘纯武 张羿猛 |
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| 作者单位： | 国防科技大学 机电工程与自动化学院，湖南 长沙 410073;国防科技大学 机电工程与自动化学院，湖南 长沙 410073;国防科技大学 机电工程与自动化学院，湖南 长沙 410073;国防科技大学 机电工程与自动化学院，湖南 长沙 410073;国防科技大学 机电工程与自动化学院，湖南 长沙 410073 |
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| 摘 要： | 深入分析了非理想功率控制下异步CDMA多用户接收机的信号特点,推导出了多小区接收信号模型。提出了基于快速独立分量分析(Fast Independent Component Analysis,FastICA)的异步多用户检测方法,该方法具有抗远近效应,抗多址干扰的能力。仿真结果表明:该算法具有迭代次数少、计算量小、多用户分离效果好的优点,非常适合于非理想功率控制下的多用户检测,该方法大大提高了非理想功率控制下多用户接收机的性能。
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| 关 键 词： | 非理想功率控制 异步多用户检测 CDMA 快速独立分量分析 |
| 收稿时间： | 2010/5/20 0:00:00 |
The Asynchronous Multi-user Detector Based on Fast Independent Component Analysis |
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| DONG Zhi,HUANG Zhiping,TANG Guilin,LIU Chunwu and ZHANG Yimeng.The Asynchronous Multi-user Detector Based on Fast Independent Component Analysis[J].Journal of National University of Defense Technology,2010,32(6):147-152. |
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| Authors: | DONG Zhi HUANG Zhiping TANG Guilin LIU Chunwu and ZHANG Yimeng |
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| Institution: | College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China;College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China;College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China;College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China;College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China |
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| Abstract: | With a deep analysis of the signal characteristics of CDMA receiver on unideal power control instance, the current research deduced the receiving signal model of multi-cell. Furthermore, the research presented the asynchronous multi-user detection method based on FastICA, which is naturally near-far and multiple-access interference resistant. The simulation results show that: this method has less iterative time, small computational complexity and good performance of multi-user detection, which can enhance the capability of multi-user receiver and is very suitable for asynchronous multi-user detection on unideal power control. |
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| Keywords: | unideal power control asynchronous MUD CDMA FastICA(Fast Independent Component Analysis) |
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