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《Acta Electronica Sinica》 2009-01
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Blind Reduced-Rank Multi-User Detector for DS-CDMA Systems Based on Signal Subspace

DONG En-qing,YAN Yu-cai (School of Information Engineering,Shandong University at Weihai,Weihai,Shandong 264209,China)  
A blind reduced-rank multi-user detector(MUD)based on a new variable threshold reduced-rank subspace selection and an improved dimension estimation is proposed.By using the new reduced-rank subspace selection,a proper reduced-rank subspace can be obtained quickly and the subspace can be reused.The improved Akaike Information Criterion(AIC)is adopted to estimate the dimension of the signal subspace in the subspace tracking.The computation of dimension estimation can be reduced by using the criterion in the same error probability.Because AIC has a risk of overestimating the dimension of the signal subspace,the performance of the blind reduced-rank multi-user detector is specially analyzed when the signal subspace dimension is overestimated.The simulation results show that the proposed reduced-rank subspace selection algorithm can achieve the desired system performance with lower computational complexity.
【Fund】: 国家自然科学基金(No.60572074)
【CateGory Index】: TN914.53
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【Co-citations】
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5 YANG Lei1,ZHAO Yong-jun1,2,WANG Zhi-gang1(1.Information Engineering College,Information Engineering University,Zhengzhou 450002,China;2.Department of Electronic Engineering,Beijing University of Technology,Beijing 100081,China);Polarimetric Interferometric SAR Data Analysis Based on TLS-ESPRIT of Joint Estimation of Phase and Power[J];Acta Geodaetica et Cartographica Sinica;2007-02
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7 LIU Wei1,WANG Changming1,ZHANG Zijia2 (1.Dept.of Instrument of Nanjing University of Science and Technology,Nanjing 210094,China;2.Dept.of Instrument Science and Technology,Nanjing University of Information Science and Technology,Nanjing 210044,China);An Efficient Method for Reducing Computational Requirement of 2-D Angle Estimation Based on Cross-Shaped Array[J];Journal of Test and Measurement Technology;2008-05
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9 HE Yu-dong1,2,ZHOU Bang-hua2,ZHOU Jie2,SHAO Bei-bei1(1.Department of Engineering Physics,Tsinghua University,Beijing 100084,China;2.Institute of Electronic Engineering,China Academy of Engineering Physics,Mianyang 621900,China);Experimental Verification of Array Error Calibration Algorithm for Smart Antennas[J];Telecommunication Engineering;2008-09
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1 CHEN Xu, CHEN Guoming, ZHU Jing (Information System Laboratory H3 , GUET , Guilin, 541004, China);Adaptive Beamforming Researsh for Arbitrary Arrays Based on LMS and RLS[A];[C];2008
2 YANG Xiang-hua (Institute of Electronic Engineering, CAEP, Mianyang 621900, China);System Simulation of Digital Beamforming Antenna in SystemView and Matlab[A];[C];2005
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8 FAN Wen-tao~1 ZHANG Xin-hua~2 XU Li~3 (1.Postgraduate team one,Dalian Naval Academy,Dalian 116018,China;2.Information technology research center,Dalian Naval Academy,Dalian 116018,China;3.Running maintains department,China Unicom,Nanjing,210000);Combined beam-space blind source separation and MUSIC for bearing estimation algorithm[A];[C];2008
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【Co-references】
Chinese Journal Full-text Database 2 Hits
1 WANG Xing1,LI Xiao-wen2(1.College of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,P.R.China;2.3G Research Institute,Chongqing Chongyou Information Technology Co.,LTD.,Chongqing 400065,P.R.China);OPASTd algorithm and its application in blind multi-user detection system[J];Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition);2009-01
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