Joint Message-Passing Decoding of LDPC Codes and 2-D ISI Channels

Two-dimensional (2-D) intersymbol-interference (ISI) channels represent an important class of next-generation data-storage systems. In order to mitigate the 2-D ISI and improve system performance, a joint message-passing decoding algorithm is proposed in this paper. The proposed algorithm conducts a...

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Bibliographic Details
Published in:IEEE transactions on magnetics Vol. 49; no. 2; pp. 675 - 681
Main Authors: Yao, Jun, Teh, Kah Chan, Li, Kwok Hung
Format: Journal Article Conference Proceeding
Language:English
Published: New York, NY IEEE 01.02.2013
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
2-D intersymbol interference (ISI)
Arrays
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Iterative decoding
Joints
low-density parity-check (LDPC) code
Magnetism
Materials science
Maximum likelihood decoding
message-passing algorithm
Mutual information
Other topics in materials science
Physics
2-D intersymbol interference (ISI)
low-density parity-check (LDPC) code
message-passing algorithm
Density
Iterative decoding
Magnetic properties
ISSN:0018-9464, 1941-0069
Online Access:Get full text
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Summary:Two-dimensional (2-D) intersymbol-interference (ISI) channels represent an important class of next-generation data-storage systems. In order to mitigate the 2-D ISI and improve system performance, a joint message-passing decoding algorithm is proposed in this paper. The proposed algorithm conducts an iterative decoding of low-density parity-check code and a 2-D ISI channel, which can be implemented in a fully parallel manner. An extrinsic information transfer chart is also introduced to analyze the performance and convergence behavior of the proposed message-passing decoding system. Simulation results show that the proposed joint message-passing decoding algorithm outperforms some existing joint decoding algorithms.
Bibliography:ObjectType-Article-1
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content type line 14
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2012.2219299