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http://dx.doi.org/10.6109/JKIICE.2009.13.11.2405

Low Complexity ML Detection Based on Linear Detectors in MIMO Systems  

Niyizamwiyitira, Christine (한국기술교육대학교 대학원 전기전자공학과)
Kang, Chul-Gyu (한국기술교육대학교 대학원 전기전자공학과)
Oh, Chang-Heon (한국기술교육대학교 정보기술공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.13, no.11, 2009 , pp. 2405-2411 More about this Journal
Abstract
MMSE, ZF and ML are the decoding mechanisms for V-BLAST system, and ML shows the best performance decoding the original signal among them. However, it has a problem that the computation complexity is increased exponentially according to the number of transmit antennas and transmit degrees. In this paper, we propose a low complexity linear ML detection algorithm having low computation complexity, then analyze the system performance in BER and computation complexity comparing with other algorithms. In the simulation, the BER performance of the proposed algorithm is superior than ZF and MMSE detection algorithms, and similar to ML detection algorithm. However, its computation complexity was 50% less than ML algorithm. From the results, we confirm that the proposed algorithm is superior than other ML detection algorithms.
Keywords
V-BLAST; ML; Zero Forcing(ZF); MMSE; Low complexity ML;
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1 한국전파진흥협회, 디지털 홈 기술동향, 2003. 8
2 J.K. Cavers, "Single-user and multiuser adaptive maximal ration transmission for Rayleigh channels," IEEE Trans. Veh. Technol., vol. 49, Nov. 2000
3 E.N. Onggosanusi, A.G. Dabak, and T.A. Schmidl, "High rate space-time block coded scheme: performance and improvement in correlated fading channels," in Proc. IEEE Wireless Communications and Networking Conference, vol. 1, pp. 194-199, Mar. 2002
4 이현규, 홈 네트워킹이란, 아이크로테크놀러지, 2003. 3
5 J. Proakis, Digital Communications. 3rd ed New York: McGraw-Hill, 1995
6 T.K.Y.Lo, "Maximum ration transmission," IEEE Trans Comm., vol. 47, pp. 1458-1461, Oct. 1999   DOI   ScienceOn
7 G.J.Foschini, "Layered space-time architecture for wireless communication in a fading environment when using multiple antennas," Bell Labs Tech.j., vol. 1, pp. 41-59,Autumn 1996   DOI   ScienceOn
8 P.W.wolniansky, GJ.Foschini, G.D.Golden, and R.A.Valenzuela, "V-BLAST: an architecture for realizing very high data rates over the rich-scattering wireless channel," in Proc. URSI Int. Symp. Signals, Systems, and Electronics, Pisa, Italy, pp. 295-300, Sept.-Oct. 1998