Abstract
We propose a non-data-aided phase noise compensation technique that overcomes the limitation of the zero-overhead decision-directed (DD) phase noise suppression method in high-order constellations for coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems. The proposed technique consists of two equalization stages. First, a blind adaptive phase offset recovery scheme based on high-order statics, called the dispersion minimization de-rotator, is applied to subcarrier symbols to achieve rough correction of the common phase error because of phase noise. Second, the conventional DD phase noise correction scheme is used to remove the residual common phase error. The proposed method effectively compensates phase noise without the help of pilot signals, especially for high-order constellation CO-OFDM systems, as confirmed by our simulation results.
Original language | English |
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Article number | 6557439 |
Pages (from-to) | 1703-1706 |
Number of pages | 4 |
Journal | IEEE Photonics Technology Letters |
Volume | 25 |
Issue number | 17 |
DOIs | |
Publication status | Published - 2013 |
Keywords
- Phase noise
- adaptive phase noise mitigation
- coherent communication
- optical orthogonal frequency division multiplexing
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering