A Reduced Complexity QRM-MLD for Spatially Multiplexed MIMO Systems 


Vol. 32,  No. 1, pp. 43-50, Jan.  2007


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  Abstract

In the paper, we address QRM-MLD (Maximum Likelihood Detection with QR Decomposition and M-algorithm) signal detection method for spatially multiplexed MIMO (Multiple Input Multiple Output) systems. Recently, the QRM-MLD signal detection method which can achieve 1Gbps transmission speed for next generation mobile communication was implemented in a MIMO testbed for the mobile moving at a pedestrian speed. In the paper, we propose a novel signal detection method "reduced complexity QRM-MLD" that achieves identical error performance as the QRM-MLD while reducing the computational complexity significantly. We rigorously compare the two detection methods in terms of computational complexity to show the complexity reduction of the proposed method. We also perform a set of computer simulations to demonstrate that two detection methods achieve identical error performance.

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  Cite this article

[IEEE Style]

T. Im, J. Kim, Y. S. Cho, "A Reduced Complexity QRM-MLD for Spatially Multiplexed MIMO Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 1, pp. 43-50, 2007. DOI: .

[ACM Style]

Tae-Ho Im, Jae-kwon Kim, and Yong Soo Cho. 2007. A Reduced Complexity QRM-MLD for Spatially Multiplexed MIMO Systems. The Journal of Korean Institute of Communications and Information Sciences, 32, 1, (2007), 43-50. DOI: .

[KICS Style]

Tae-Ho Im, Jae-kwon Kim, Yong Soo Cho, "A Reduced Complexity QRM-MLD for Spatially Multiplexed MIMO Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 1, pp. 43-50, 1. 2007.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880