Versatile serial concatenated convolutional codes
US6785861B2 · kind B2 · utility
17Cited by
4References
82Claims
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Key dates
| Filing date | Feb 9, 2001 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Feb 17, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/2789
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An input digital signal is encoded by subjecting it to a first convolutional coding step followed by an interleaving step and a second convolutional coding step. The serial concatenated convolutional coded signal thus obtained is then subjected to modulation by means of a two-dimensional modulation scheme such as M-PSK or M-QAM. The corresponding decoding process involves an iterative decoding algorithm based on cascaded logarithmic soft-input soft-output processing steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.