Efficient Probabilistic Parity Shaping for Irregular Repeat-Accumulate LDPC Codes

Algorithms are presented that efficiently shape the parity bits of systematic irregular repeat-accumulate (IRA) low-density parity-check (LDPC) codes by following the sequential encoding order of the accumulator. Simulations over additive white Gaussian noise (AWGN) channels with on-off keying show a gain of up to 0.9 dB over uniform signaling.

Publication Details

Journal
ArXiv.org
Published
2025-08-27
Primary Topic
Geochemistry and Geologic Mapping
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article
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article

Efficient Probabilistic Parity Shaping for Irregular Repeat-Accumulate LDPC Codes

ArXiv.org
Geochemistry and Geologic Mapping
article

Efficient Probabilistic Parity Shaping for Irregular Repeat-Accumulate LDPC Codes

article en

Abstract

Algorithms are presented that efficiently shape the parity bits of systematic irregular repeat-accumulate (IRA) low-density parity-check (LDPC) codes by following the sequential encoding order of the accumulator. Simulations over additive white Gaussian noise (AWGN) channels with on-off keying show a gain of up to 0.9 dB over uniform signaling.

ArXiv.org
Openalex Percentile: Top 60%
Geochemistry and Geologic Mapping
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Efficient Probabilistic Parity Shaping for Irregular Repeat-Accumulate LDPC Codes · ArXiv.org (2025) | TGRS Research Map | TGRS