Method for constructing large-girth quasi-cyclic low-density parity-check codes
US8103931B2 · kind B2 · utility
22Cited by
1References
12Claims
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Key dates
| Filing date | Aug 27, 2008 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Nov 24, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/033
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method constructs a code, wherein the code is a large-girth quasi-cyclic low-density parity-check code. A base matrix is selected for the code. A cost matrix corresponding to the base matrix is determined. A single element in the base is changed repeatedly maximize a reduction in cost. A parity check matrix is constructing for the code from the base matrix when the cost is zero, and an information block is encoded as a code word using the parity check matrix in an encoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.