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학술지 Efficient Soft-Output Generation Method for Spatially Multiplexed MIMO Systems
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저자
김정현, 박윤옥, 방승재
발행일
200911
출처
IEICE Transactions on Communications, v.E92-B no.11, pp.3512-3515
ISSN
0916-8516
출판사
일본, 전자정보통신학회 (IEICE)
DOI
https://dx.doi.org/10.1587/transcom.E92.B.3512
협약과제
09MR7200, IMT-Advanced 기반 개방형 WiBro 플랫폼 기술 개발, 박윤옥
초록
A simple detector named QR-LRL for MIMO systems was proposed in [7] and it was shown that QR-LRL approached the hardoutput ML performance. However, its soft-output performance is not capable of approaching the near ML performance. In this letter, we propose a novel detection method which can generate reliable soft-outputs while avoiding the empty vector set problem. The proposed detector efficiently uses the upper triangular structure in QR decomposition. Simulation results show that the proposed detector can approach the near soft-output ML performance as well as hard-output with feasible complexity. Copyright © 2009 The Institute of Electronics, Information and Communication Engineers.
키워드
MIMO, QR-LRL, Spatial multiplexing
KSP 제안 키워드
Detection Method, Empty Vector Set, Information and communication, MIMO system, QR Decomposition, QR-LRL, Soft output, Triangular structure, output performance, simulation results, spatial multiplexing(SMX)