상세정보
학술지
Efficient Soft-Output Generation Method for Spatially Multiplexed MIMO Systems
- 발행일
- 200911
- 출처
- IEICE Transactions on Communications, v.E92-B no.11, pp.3512-3515
- ISSN
- 0916-8516
- 출판사
- 일본, 전자정보통신학회 (IEICE)
- 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.
- 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