Maximum likelihood sequence estimation in optical fibre communication systems
US8218978B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Nov 30, 2006 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Sep 25, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0054
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of and a receiver(20) for detection of a received signal in an optical fiber communication system using Viterbi algorithm methodology in which branch metrics are obtained using approximated expressions to calculate the branch metrics. Use of the expressions results in practically the same performance as a receiver based on exact metrics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.