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Robust minimum output energy multiuser detection algorithm


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Robust minimum output energy multiuser detection algorithm
Yu Xiangzhen
Department of Message Engineering,Engineering University of Armed Police Force,Xi’an 710086,China
code division multiple accessmultiuser detectionminimum output energyrobustness
In order to improve the performance of the traditional minimum output energy(MOE)blind multiuser detection algorithm,this paper analyzes the mismatch of spreading code vector of desired users and proposes a novel robust MOE multiuser detection algorithm.The proposed algorithm reduces the influence of the spreading code vector mismatch by projecting the weight vector into the signal subspace.The orthogonal projection approximation subspace tracking(OPAST)algorithm is adopted for adaptive signal subspace estimation to reduce the computational complexity.Theoretical analysis and simulation results demonstrate that the proposed algorithm provides excellent robustness against the spreading code vector mismatch,and improves the performance of the output signaltointerferenceplusnoiseratio(SINR).


[1]Verdu S.Minimum probability of error for asynchronous gaussian multiple access channels[J].IEEE Transactions on Information Theory,1986,IT32(1):85-96.
[2]王永建,周廷显.RBF神经网络多用户检测ROLSAWS算法的研究[J].南京理工大学学报,2005,29(2):197-201. Wang Yongjian,Zhou Tingxian.ROLSAWS algorithm used in RBF neural network multiuser detection[J].Journal of Nanjing University of Science and Technology,2005,29(2):197-201.
[3]刘枫,张太镒,孙建成.基于信号子空间的盲自适应多用户检测[J].南京理工大学学报,2004,28(2):157-160. Liu Feng,Zhang Taiyi,Sun Jiancheng.Signal subspace based blind adaptive multiuser detection[J].Journal of Nanjing University of Science and Technology,2004,28(2):157-160.
[4]Ali I,Kim D N,Song Y J,et al.A novel subspace tracking algorithm and its application to blind multiuser detection in cellular CDMA systems[J].Journal of Communications and Networks,2010,12(3):216-221.
[5]Yu Yinhui,Li Jing,Wang Zhen,et al.Blind multiuser detection in MCCDMA:Schmidtorthogonalization and subspace tracking kalman filtering[A].Proceedings of C ommunications and Mobile Computing[C].Qingdao,China:IEEE,2011:375-380.
[6]Tsai C Y,Hung H L,Lee S H.Electromagnetismlike method based blind multiuser detection for MCCDMA interference suppression over multipath fading channel[A].International Conference on Computer Communication Control and Automation[C].Tainan,Taiwan,China:IEEE,2010:470-475.
[7]Zhou Hongwei,Xiao Pei,Cowan C.Robust adaptive multiuser detection for CDMA frequencyselective fading channels[A].Proceedings of VTC[C].Ottawa,ON:IEEE,2010:1-6.
[8]Cui S G,Kisialiou M,Luo Z Q,et al.Robust blind multiuser detection against signature waveform mismatch based on secondorder cone programming[J].IEEE Transactions on Wireless Communications,2005,4(4):1285-1291.
[9]Zarifi K,Shahbazpanahi S,Gershman A B,et al.Robust blind multiuser detection based on the worstcase performance optimization of the MMSE receiver[J].IEEE Transactions on Signal Processing,2005,53(1):295-305.
[10]AbedMeraim K,Chkeif A,Hua Y.Fast orthonormal PAST algorithm[J].IEEE Signal Processing Letters,2000,7(3):60-62.
[11]Caamano A J,SegoviaVargas D,Ramos J.Blind adaptive Krylov subspace multiuser detection[A].IEEE Vehicular Technology Conference[C].Atlantic City,NJ:IEEE,2001:2338-2341.


Last Update: 2013-02-15