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Pilot-free common phase error estimation for CO-OFDM with improved spectral efficiencyOpen AccessPublished in Institute of Electrical and Electronics Engineers Inc.
2019
Volume: 11
Issue: 6
We propose an improved pilot free phase noise mitigation algorithm for CO-OFDM systems using weighted multi-level QPSK partitioning and Kalman filtering. Through extensive Monte Carlo simulations, we demonstrate an improvement in spectral efficiency of >6% in case of 200 Gbps single channel and 1 Tbps multi channel 16QAM CO-OFDM transmission with blind carrier phase estimation. We also experimentally demonstrate the performance of the proposed algorithm against the standard pilot aided algorithm for the transmission of 120 Gbps 16QAM CO-OFDM at different noise levels. © 2009-2012 IEEE.
Topics: Phase noise (55)%55% related to the paper, Spectral efficiency (54)%54% related to the paper, Noise (electronics) (53)%53% related to the paper, Quadrature amplitude modulation (53)%53% related to the paper and Orthogonal frequency-division multiplexing (52)%52% related to the paper
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Content may be subject to copyright,Check LicenseThis is a hybrid open access article under cc-by licenseThis is a hybrid open access article under cc-by license
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About the journal
| Journal | Data powered by TypesetIEEE Photonics Journal |
|---|---|
| Publisher | Data powered by TypesetInstitute of Electrical and Electronics Engineers Inc. |
| ISSN | 19430655 |
| Open Access | Yes |
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Concepts (16)
Carrier communication- Efficiency
- Intelligent systems
- Kalman filters
- Monte carlo methods
- Orthogonal frequency division multiplexing
- Quadrature amplitude modulation
- CARRIER PHASE ESTIMATION
- COHERENT OPTICAL
- COMMON PHASE ERRORS
- KALMAN-FILTERING
- Multi channel
- Noise levels
- Single channels
- Spectral efficiencies
- Phase noise
