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학술지 Combined ML and DFE Decoding for Coded Double STBC-OFDM System
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저자
윤찬호, 이후진, 강준혁
발행일
201012
출처
IEEE Communications Letters, v.14 no.12, pp.1164-1166
ISSN
1089-7798
출판사
IEEE
DOI
https://dx.doi.org/10.1109/LCOMM.2010.100810.101349
협약과제
10MI3600, 개방형 mmWave 무선 인터페이스 플랫폼 기술개발, 정현규
초록
An efficient combined maximum likelihood (ML) and decision feedback equalization (DFE) decoding method is proposed for a coded double space-time block code orthogonal frequency division multiplexing (DSTBC-OFDM) system. For the missing bit log likelihood ratios (LLRs) in the DFE part, our proposed detector effectively exploits Gaussian approximated LLRs with reference to the colored noise covariance matrix. Simulation results demonstrate that the proposed method can achieve comparable performance to the coded full ML detectors with deterministic and lower complexity. © 2010 IEEE.
키워드
double STBC, LLR demapping, spatial multiplexing/diversity, STBC-OFDM
KSP 제안 키워드
Block codes, Colored Noise, Covariance matrix, Noise covariance, OFDM systems, Orthogonal frequency division Multiplexing(OFDM), STBC-OFDM, Space time(ST), decision feedback equalization(DFE), decoding method, log likelihood ratio(LLR)