[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.4218/etrij.12.0211.0112

Block-Mode Lattice Reduction for Low-Complexity MIMO Detection

Choi, Kwon-Hue (Department of Information & Communication Engineering, Yeungnam University)
Kim, Han-Nah (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI)
Kim, Soo-Young (Division of Electronic Engineering, Chonbuk National University)
Kim, Young-Il (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI)

Publication Information

ETRI Journal / v.34, no.1, 2012 , pp. 110-113 More about this Journal

Abstract

We propose a very-low-complexity lattice-reduction (LR) algorithm for multi-input multi-output detection in time-varying channels. The proposed scheme reduces the complexity by performing LR in a block-wise manner. The proposed scheme takes advantage of the temporal correlation of the channel matrices in a block and its impact on the lattice transformation matrices during the LR process. From this, the proposed scheme can skip a number of redundant LR processes for consecutive channel matrices and performs a single LR in a block. As the Doppler frequency decreases, the complexity reduction efficiency becomes more significant.

Keywords

MIMO; lattice reduction; time varying fading;

Citations & Related Records

Times Cited By Web Of Science : 1 (Related Records In Web of Science)
Times Cited By SCOPUS : 1

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