Bit loading for optical discrete multi-tone transmission
US9350450B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2014 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Jun 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0046
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
System and method embodiments are provided for bit loading for optical Discrete Multi-Tone Transmission (DMT). In an embodiment, a method for bit loading for optical DMT transmission or reception includes receiving, at a processor, a bit data stream, wherein the bit data stream comprises a plurality of subcarriers; assigning, with the processor, a code rate to each of a plurality of forward error correction (FEC) encoders/decoders according to a mapping of a signal-to-noise-ratio (SNR) to a code rate for each of the subcarriers or subcarrier groups, wherein each FEC encoder/decoder corresponds to a respective one of the subcarriers or a respective subcarrier group; and assigning, with the processor, a modulation format to each subcarrier or each subcarrier group according to a mapping of an SNR for each subcarrier or subcarrier group to a bit number for a corresponding subcarrier or subcarrier group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.