Title
Ml And Map Phase Noise Estimators For Optical Fiber Fbmc-Oqam Systems
Abstract
This paper addresses the carrier phase recovery problem in Offset-QAM-based filterbank multicarrier (FBMC-OQAM) systems. The combined phase noise coming from the transmit and receive lasers, is known to induce a phase rotation of the demodulated symbols at the receiver. Several approaches have been proposed to recover the phase in FBMC-OQAM communication systems on optical fiber. Most of them have a significant complexity and do not make use of all information at disposal. In this paper, we propose two new estimators, obtained by minimizing a maximum likelihood (ML) and a maximum a posteriori (MAP) criteria. They use an error model formulation which allows to easily use priors on the phase noise statistics. By linearization of the error, an analytical solution is found for the phase error, which avoids the need for multiple phase tests. Simulation results demonstrate the better performance of the proposed estimators with respect to state of the art solutions in the low signal-to-noise (SNR) regime and for a small number of subcarriers.
Year
Venue
Keywords
2017
2017 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)
Filter-bank multicarrier, offset QAM, coherent detection, carrier phase estimation
Field
DocType
ISSN
Computer science,Control theory,Filter bank,Communications system,Phase noise,Interference (wave propagation),Maximum a posteriori estimation,Linearization,Estimator,Adaptive optics
Conference
1550-3607
Citations 
PageRank 
References 
1
0.36
2
Authors
5
Name
Order
Citations
PageRank
Francois Rottenberg1185.68
Nguyen Trung-Hien215.43
Simon-Pierre Gorza310.70
Horlin François435144.46
Louveaux Jérôme528427.22