Method and system for modulating optical signals as high-dimensional lattice constellation points to increase tolerance to noise
US9112653B2 · kind B2 · utility
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Key dates
| Filing date | Jun 19, 2013 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Oct 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0065
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method modulates data for optical communication by first encoding the data using a forward error correction (FEC) encoder to produce encoded data, which are encoded using a block encoder to produce block encoded data such that Hamming distances between code words that represent the block encoded data are increased. The block encoded data are mapped to produce mapped data such that Euclidian distances between the constellation points are increased. Then, the mapped data are modulated in a transmitter to a modulated signal for an optical channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.