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October 16, 2025Open Access

Low-Complexity Decoding for Low-Rate Block Codes of Short Length Based on Concatenated Coding Structure

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Decoding efficiency is enhanced by constructing an improved MRIP frame based on log likelihood ratios, significantly lowering complexity.
The proposed concatenated coding approach outperforms the (128,36) extended BCH code in simulations, showing effective decoding with reduced search space.
Ordered statistics decoding and A* decoding are foundational to establishing reliable symbol positions in low-rate block codes.
Simulation results validate the effectiveness of concatenated code constructions, indicating high performance for binary linear block codes.

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This research proposes an improved frame for decoding low-rate block codes, suggesting efficient concatenated coding methods for better performance.

Lin et al. (2025) studied this question.

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This research proposes an improved frame for decoding low-rate block codes, suggesting efficient concatenated coding methods for better performance.