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A BP Decoding Algorithm Based on Nodes Residual for LDPC Codes and Its Hardware Implementation

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Abstract:

We researched BP decoding algorithm based on variable-to-check information residual for LDPC code (VCRBP) in this paper. It is a dynamic scheduling belief propagation using residuals, and has some advantages, such as fast decoding, good performance, and low complexity. It is similar to residual belief propagation (RBP), but has some difference in computing the residual message. This paper further optimized the new algorithm on DSP of TMS320dm6446, and it is good for hardware implementation.

Keywords: BELIEF PROPAGATION; DSP; LDPC CODES; RESIDUAL

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/asl.2012.2277

Publication date: March 1, 2012

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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