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학술지 Block-Mode Lattice Reduction for Low-Complexity MIMO Detection
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저자
최권휴, 김한나, 김수영, 김영일
발행일
201202
출처
ETRI Journal, v.34 no.1, pp.110-113
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.12.0211.0112
협약과제
11PR2400, IMT-Advanced 모바일 IPTV 핵심기술 개발, 김영일
초록
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. © 2012 ETRI.
키워드
Lattice reduction, MIMO, Time varying fading
KSP 제안 키워드
Doppler Frequency, MIMO detection, Multi-input, Multi-output, Multiple input multiple output(MIMO), Reduction Efficiency, Temporal Correlation, Time-varying channels, complexity reduction, lattice reduction(LR), low-complexity MIMO