Half-cycled orthogonal frequency divisional multiplexing transmission and reception
US10003423B2 · kind B2 · utility
7Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 2014 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | May 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2651
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An optical transmitter transmits an orthogonal frequency division multiplexing symbol in which only one-half of available subcarriers are modulated with data and the remaining subcarriers are suppressed by not modulating with data. The transmission is of duration equal to half the symbol period of the OFDM symbol, resulting in a half-cycle transmission. An optical receiver receives the half-cycle transmission OFDM symbol, regenerates the full time domain representation and recovers data modulated on the one-half of available subcarriers. The modulated subcarriers and the suppressed subcarriers alternate in the frequency domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.