Simplified decoding using structured and punctured LDPC codes
US7581159B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 2005 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Jan 9, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0069
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communications transceiver for transmitting and receiving coded communications, with the coding corresponding to a low-density parity check code, is disclosed. A set of available code word lengths and code rates are to be supported by the transceiver. These available code word lengths and code rates are implemented as a subset of starting code word lengths, which are length-reduced by shortening and puncturing selected bit positions in the starting code word length to attain the desired one of the available code word lengths and code rates. The bit positions to be shortened and punctured are selected in a manner that avoids interference between the shortened and punctured bit positions, and that attains excellent code performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.