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Journal Article Combined ML and DFE Decoding for Coded Double STBC-OFDM System
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Authors
Chanho Yoon, Hoojin Lee, Joonhyuk Kang
Issue Date
2010-12
Citation
IEEE Communications Letters, v.14, no.12, pp.1164-1166
ISSN
1089-7798
Publisher
IEEE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/LCOMM.2010.100810.101349
Project Code
10MI3600, Development of Open mmWave Wireless Interface Platform Technology, Chung Hyun Kyu
Abstract
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.
KSP Keywords
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)