Symbol synchronization exploiting the symmetric property in optical fast OFDM

Jian A. Zhao; Selwan K. Ibrahim; Danish Rafique; Paul Gunning; Andrew D. Ellis

doi:10.1109/LPT.2011.2118195

Symbol synchronization exploiting the symmetric property in optical fast OFDM

Jian A. Zhao, Selwan K. Ibrahim, Danish Rafique, Paul Gunning, Andrew D. Ellis

Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	5719155
Pages (from-to)	594-596
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	23
Issue number	9
DOIs	https://doi.org/10.1109/LPT.2011.2118195
Publication status	Published - 1 May 2011

Bibliographical note

© 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

Keywords

detection
modulation
orthogonal frequency- division multiplexing
wavelength-division multiplexing

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10.1109/LPT.2011.2118195

Symbol synchronization exploiting the symmetric property in optical fast OFDM
© 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.
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http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5719155

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N1 - © 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

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Symbol synchronization exploiting the symmetric property in optical fast OFDM

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Keywords

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