Fast mapping method for layered min-sum decoding of LDPC codes,
US9515680B2 · kind B2 · utility
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Key dates
| Filing date | Oct 10, 2014 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Mar 7, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/6594
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method is disclosed for performing LDPC decoding, specifically layered min-sum decoding using a Tanner graph including check nodes (CN) and variable nodes (VN). Messages passed between nodes are quantized in a non-uniform manner. Values below a threshold are uniformly quantized whereas values above the threshold are non-uniformly quantized. A corresponding inverse-quantization is also defined.
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