Method and system for estimating an expectation of forward error correction decoder convergence
US9793924B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2015 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Dec 13, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/1131
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A forward error correction decoder and method of decoding a codeword is provided. The decoder comprises a convergence processor for estimating an expectation of codeword convergence. The convergence processor is configured to calculate a first value of a figure of merit; calculate a second value of the figure of merit; combine the second value of the figure of merit and the first value of the figure of merit to produce a progress value; compare the progress value of the decoding to a progress threshold; and increase a maximum number of iterations of the decoder if the progress value is greater than the progress threshold. The maximum number of iterations may be initially set to a low number beneficial for power consumption and raw throughput. Increasing the maximum number of iterations devotes additional resources to a particular codeword and is beneficial for error rate performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.