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Coded MIMO system for soft-output estimation algorithm

Computation method and receiver antennas increases linearly with the increase compared with the optimal wA receiver greatly reduces the computational complexity; and the optimal ML algorithm is sub-optimal receiver compared to reduce the computational complexity degree at the same time, bit error rate performance has been considerable improvement. Ruili Ping fading simulation results show that the proposed soft-output estimation algorithm based on the mean is coded MIMO system for a more practical algorithm. References [1] FoschiniGJ, GansMJ. WirelessPersonalCommunica-tions, 1998,6 (3): 311 [2] VerduS. Multiuserdetection. Cambridge, OK-. Cam-bridgeUniversityPress, 1998 [3] MadhowU, HonigM. / FEETramCoInmun, 1994,42 (12) ~. 378 [4] LupasR, VerduS. / E. EETramInformTheory, 1989,[link widoczny dla zalogowanych],35 (1): 123 [5] PatelP, HoltzmanJ. IEEEJSelAreasCoInmun, 1994,12 (5): 796 [6] LuoJ, PattipatiKR, WillettPK, eta1. IEEECoInmu-nicationLetters, 2001,5 (9): 361 [7] EttenWV. IEEETramCoInmun,[link widoczny dla zalogowanych], 1976, (2): 276 [8] XiongF, ShwedykE. / E. EETramCoInmun, 1993,41 (2): 322 [9] MillerCL, TaylorDP, GoaghPT. / FEETramCorn-mun, 2001,49 (11): 1997 [10] EyubogluMV,[link widoczny dla zalogowanych], QumshiSUH. IEEETramCoInmun,[link widoczny dla zalogowanych], 1988,36 (1): 13 [11] AndersonJB. / E. EETramInform77u ~ y, 1989,35 (5): 944 Wang Bing, etc.: for the soft output coding MIMO system estimation algorithm [12] Chen Jiang. Fading channel SDMA system: [PhD thesis]. Beijing: Department of Electronics,[link widoczny dla zalogowanych], Peking University, 2002Soft-outputEstimationAlgorithmforCodedMIMOSystemWangBing, ZhaoYuping, ZouLi, LiangQinglin (SchoolofElectronicsEngineerandComputerScience, PekingUniversity, Beijing100871) AbstractAsoft-outputmultiuserdetectionalgorithm (MUD) inMIM0systemisproposed. Itslog-likeli-ratioout-putsprovidesoftinformationforthecascadingparallelchanneldecoderstoobtainthesoftgain, andthedecodingcomplexityislinearwithantennanumber. SimulationinfiatRayleighfadingenvironmentshowsthatcompared, rithoptimalVVA, thecomplexityreductioni'SgainedwithatolerableBERdegrade, andwhilecomparedwithmaximum-likelihood (M.L) algorithm, boththeBERandcomplexityadvantageareobtained. Keywords: MIMO, MUD, Viterbialgorithm a 9 a

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