| 引用本文: | 董志,黄芝平,唐贵林,等.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.[点击复制] |
| DONG Zhi,HUANG Zhiping,TANG Guilin,et al.The Asynchronous Multi-user Detector Based on Fast Independent Component Analysis[J].Journal of National University of Defense Technology,2010,32(6):147-152[点击复制] |
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| 基于快速独立分量分析的异步多用户检测方法 |
| 董志, 黄芝平, 唐贵林, 刘纯武, 张羿猛 |
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(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。 |
| 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 |
| DOI： |
| 投稿日期：2010-05-20 |
| 基金项目: |
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| The Asynchronous Multi-user Detector Based on Fast Independent Component Analysis |
| DONG Zhi, HUANG Zhiping, TANG Guilin, LIU Chunwu, ZHANG Yimeng |
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(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. |
| Keywords: unideal power control asynchronous MUD CDMA FastICA(Fast Independent Component Analysis) |
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