Volume 4 Number 3 (Jun. 2012)
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IJCEE 2012 Vol.4(3): 387-389 ISSN: 1793-8163
DOI: 10.7763/IJCEE.2012.V4.518

Hybrid Signal Detection Method Using MMSE and RC-QRM-MLD for Spatially Multiplexed MIMO Systems

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

Abstract—A signal detection method that has high performance with low computational complexity is required for spatially multiplexed multiple antenna systems. Among conventional signal detection methods, QR decomposition M algorithm maximum likelihood (QRM-MLD) is known as the optimal method, but a lot of computational complexity is needed. Here, hybrid signal detection method is proposed, which can reduce computational complexity using minimum mean square error (MMSE) and reduced complexity (RC)-QRM-MLD adaptively. The proposed method is adopted in 3GPP LTE downlink environment, the results can show almost identical performance to that of QRM-MLD with less computational complexity.

Index Terms—Signal detection method, 3GPP LTE, MIMO,MMSE, QRM-MLD.

J. Lee, Y. Kim1, K. Kim and Y. Kim2 are with the Department of Electronic Engineering, Sogang University, C.P.P Box 1142, Seoul, Korea(phone : 82-2-707-0588, 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, "Hybrid Signal Detection Method Using MMSE and RC-QRM-MLD for Spatially Multiplexed MIMO Systems," International Journal of Computer and Electrical Engineering vol. 4, no. 3, pp. 387-389, 2012.

General Information

ISSN: 1793-8163
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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