| 基于快速独立分量分析的盲多用户检测算法 |
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| 引用本文： | 杨家轩,马恒,贾传荧.基于快速独立分量分析的盲多用户检测算法[J].辽宁工程技术大学学报(自然科学版),2009,28(6). |
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| 作者姓名： | 杨家轩 马恒 贾传荧 |
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| 作者单位： | 1. 大连海事大学,航海学院,辽宁,大连,116026
2. 辽宁工程技术大学,安全科学与工程学院,辽宁,阜新,123000 |
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| 基金项目： | 交通部十一五发展规划基金资助项目 |
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| 摘 要： | 为了抵抗多址干扰的影响,充分利用了各个用户信号之间的独立性,使用负熵作为非高斯性测度,提出了一种基于快速独立分量分析的盲多用户检测算法.该算法在干扰用户的扩频码未知情况下能够获得优异的符号估计性能.通过与传统匹配滤波器、MMSE检测算法比较,实验结果表明在同步CDMA信道中,MAI较低的时算法检测性能与MMSE检测器的性能接近,随着MAI增加,算法的性能明显优于MMSE算法.
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| 关 键 词： | 盲多用户检测 独立分量分析 CDMA系统 |
An algorithm of blind multi-user detection based on fast independent component analysis |
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| YANG Jiaxuan,MA Heng,JIA Chuanying.An algorithm of blind multi-user detection based on fast independent component analysis[J].Journal of Liaoning Technical University (Natural Science Edition),2009,28(6). |
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| Authors: | YANG Jiaxuan MA Heng JIA Chuanying |
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| Institution: | YANG Jiaxuan1,MA Heng2,JIA Chuanying1 (1. Navigation College,Dalian Maritime University,Dalian 116026,China,2. College of Safety Science and Engineering,Liaoning Technical University,Fuxin 123000,China) |
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| Abstract: | In order to reduce the MSI,a blind multi-user detection algorithm is proposed in this paper,which is based on fast independent component analysis combined with CDMA receiver.By exploiting the independence of the source signals of different users and utilizing Neg-entropy for finding non-Gaussianity measure which is robust to Gaussian noise,an excellent symbol estimation performance is obtained while the codes of the interfering users are unknown.In this study,the ICA blind detection method is compared with ... |
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| Keywords: | Blind multiuser detection Independent component analysis CDMA systems |
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