Compressed FEC Codes With Spatial-Coupling

An error floor problem is observed for a spatially coupled sparse-regression (SCSR) code with limited sparsity in low-to-medium rates. This letter presents a scheme that also involves spatial-coupling and compressed-sensing (SCCS) similar to SCSR. We replace position modulation in SCSR by a general...

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Bibliographic Details
Published inIEEE communications letters Vol. 21; no. 5; pp. 987 - 990
Main Authors Liang, Chulong, Ma, Junjie, Ping, Li
Format Journal Article
LanguageEnglish
Published IEEE 01.05.2017
Subjects
Approximate message passing (AMP)
compressed sensing
concatenated codes
Decoding
Encoding
Error correction codes
Forward error correction
Hadamard codes
Message passing
message passing decoding
Modulation
sparse-regression (SR) codes
spatial coupling (SC)
turbo codes
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Summary:An error floor problem is observed for a spatially coupled sparse-regression (SCSR) code with limited sparsity in low-to-medium rates. This letter presents a scheme that also involves spatial-coupling and compressed-sensing (SCCS) similar to SCSR. We replace position modulation in SCSR by a general concatenated forward error control code. We introduce a chaining principle that improves the error floor behavior of the underlying code. We show that SCCS based on chained Hadamard codes can offer significantly improved performance.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2017.2655055