Volume 4 Number 3 (Jun. 2012)
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IJCEE 2012 Vol.4(3): 384-386 ISSN: 1793-8163
DOI: 10.7763/IJCEE.2012.V4.517

Reduced Complexity QRM-MLD for MIMO System

Jinyong Lee, Youngseh Kim, Kanghoon Kim, and Younglok Kim

Abstract—This paper proposes reduced complexity QR decomposition with M-algorithm (QRM) maximum likelihood detection (MLD) by removing superfluous paths according to the maximum squared Euclidean distance. As a result of computer simulation, the proposed method can have 56% reduction of computational complexity compare with the conventional QRM-MLD without any performance degradation at 20dB SNR. Compare with MMSE method, the 3.0% BER of conventional method is reduced to 0.04% by proposed method.

Index Terms—Channel equalization, MIMO OFDM, MMSE, QRM-MLD.

The authors are with the Department of Electronic Engineering, Sogang University, C.P.P Box 1142, Seoul, Korea (e-mail : jiny4509@sogang.ac.kr,kyskim@sogang. ac.kr, wsockkh@sogang.ac.kr and ylkim@sogang.ac.kr)

Cite: Jinyong Lee, Youngseh Kim, Kanghoon Kim, and Younglok Kim, "Reduced Complexity QRM-MLD for MIMO System," International Journal of Computer and Electrical Engineering vol. 4, no. 3, pp. 384-386, 2012.

General Information

ISSN: 1793-8163 (Print)
Abbreviated Title: Int. J. Comput. Electr. Eng.
Frequency: Quarterly
Editor-in-Chief: Prof. Yucong Duan
Abstracting/ Indexing: EI (INSPEC, IET), Ulrich's Periodicals Directory, Google Scholar, EBSCO, ProQuest, and Electronic Journals Library
E-mail: ijcee@iap.org

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