Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/81994
Title: Low-Complexity Iterative Row-Column Soft Decision Feedback Algorithm for 2-D Inter-Symbol Interference Channel Detection With Gaussian Approximation
Authors: Zheng, Jianping
Ma, Xiao
Guan, Yong Liang
Cai, Kui
Chan, Kheong Sann
Keywords: Bahl–Cocke–Jelinek-Raviv (BCJR) algorithm
Gaussian approximation (GA)
Issue Date: 2013
Source: Zheng, J., Ma, X., Guan, Y. L., Cai, K., & Chan, K. S. (2013). Low-Complexity Iterative Row-Column Soft Decision Feedback Algorithm for 2-D Inter-Symbol Interference Channel Detection With Gaussian Approximation. IEEE Transactions on Magnetics, 49(8), 4768-4773.
Series/Report no.: IEEE Transactions on Magnetics
Abstract: In this paper, we study the complexity reduction problem of the iterative row-column soft decision feedback algorithm (IRCSDFA) for 2-D inter-symbol interference (ISI) detection. Specifically, Gaussian approximation (GA) is employed in both the component row and column detectors of the IRCSDFA in order to reduce its computational complexity. With the employment of GA, the state space dimension of the ISI trellis of either component detector can be reduced enormously (i.e., the number of branches in one ISI trellis section decreases). Bahl-Cocke-Jelinek-Raviv (BCJR) algorithm is then employed to perform detection over the GA-simplified ISI trellis. For brevity, we refer to the IRCSDFA with BCJR detection over the GA-simplified ISI trellis as “IRCSDFA-GA-BCJR”. Next, the iteration scheduling of component detectors and decoder in coded 2-D ISI channels with low density parity check (LDPC) coding and IRCSDFA-GA-BCJR detection is studied. Specifically, three iteration schemes: single detector (row or column) scheme, alternate detector scheme, and combined detector scheme, are considered, with the last scheme showing the best coded performance. Finally, the computational complexity of the proposed IRCSDFA-GA-BCJR is analyzed, and shown to have significant reduction with a cost of only about 0.3 and 0.35 dB in coded BER/FER performance loss compared to the conventional IRCSDFA without GA and the optimal symbol-based BCJR algorithm, respectively.
URI: https://hdl.handle.net/10356/81994
http://hdl.handle.net/10220/41074
DOI: 10.1109/TMAG.2013.2242333
Rights: © 2013 IEEE.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles

SCOPUSTM   
Citations 20

24
Updated on Dec 1, 2022

Web of ScienceTM
Citations 10

23
Updated on Dec 1, 2022

Page view(s)

324
Updated on Dec 9, 2022

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.