Blind equalization of dual subcarrier OFDM signals
US9564976B2 · kind B2 · utility
2Cited by
3References
27Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 18, 2015 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Aug 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0038
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A dual-polarization, 2-subcarriers code orthogonal, orthogonal frequency division multiplexed signal carrying information bits is transmitted in an optical communication network without transmitting a corresponding pilot tone or training sequence. A receiver receives the transmitted signal and recovers information bits using a blind equalization technique and by equalizing the 2-subcarriers OFDM signal as a 49-QAM signal in time domain with a CMMA (constant multi modulus algorithm) equalization method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.