Symbol synchronization exploiting the symmetric property in optical fast OFDM

Zhao, Jian A., Ibrahim, Selwan K., Rafique, Danish, Gunning, Paul and Ellis, Andrew D. (2011). Symbol synchronization exploiting the symmetric property in optical fast OFDM. IEEE Photonics Technology Letters, 23 (9), pp. 594-596.

Abstract

We propose a new simple method to achieve precise symbol synchronization using one start-of-frame (SOF) symbol in optical fast orthogonal frequency-division multiplexing (FOFDM) with subchannel spacing equal to half of the symbol rate per sub-carrier. The proposed method first identifies the SOF symbol, then exploits the evenly symmetric property of the discrete cosine transform in FOFDM, which is also valid in the presence of chromatic dispersion, to achieve precise symbol synchronization. We demonstrate its use in a 16.88-Gb/s phase-shifted-keying-based FOFDM system over a 124-km field-installed single-mode fiber link and show that this technique operates well in automatic precise symbol synchronization at an optical signal-to-noise ratio as low as 3 dB and after transmission.

Publication DOI: https://doi.org/10.1109/LPT.2011.2118195
Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Additional Information: © 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
Uncontrolled Keywords: detection,modulation,orthogonal frequency- division multiplexing,wavelength-division multiplexing,Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Full Text Link: http://ieeexplo ... rnumber=5719155
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2011-05-01
Authors: Zhao, Jian A.
Ibrahim, Selwan K.
Rafique, Danish
Gunning, Paul
Ellis, Andrew D. ( 0000-0002-0417-0547)

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