Bit error rate estimation methods for QPSK CO-OFDM transmission

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Abstract

Coherent optical orthogonal frequency division multiplexing (CO-OFDM) is an attractive transmission technique to virtually eliminate intersymbol interference caused by chromatic dispersion and polarization-mode dispersion. Design, development, and operation of CO-OFDM systems require simple, efficient, and reliable methods of their performance evaluation. In this paper, we demonstrate an accurate bit error rate estimation method for QPSK CO-OFDM transmission based on the probability density function of the received QPSK symbols. By comparing with other known approaches, including data-aided and nondata-aided error vector magnitude, we show that the proposed method offers the most accurate estimate of the system performance for both single channel and wavelength division multiplexing QPSK CO-OFDM transmission systems.

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  • Bit error rate estimation methods for QPSK CO-OFDM transmission

    Rights statement: © 2014 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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Details

Original languageEnglish
Pages (from-to)2951-2959
Number of pages9
JournalJournal of Lightwave Technology
Volume32
Issue number17
Early online date30 Jun 2014
DOIs
Publication statusPublished - 1 Sep 2014

Bibliographic note

© 2014 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. Funding: EPSRC Program Grant UNLOC (EP/J017582/1)

    Keywords

  • bit error rate, coherent detection, coherent optical transmission, orthogonal frequency division multiplexing, BER

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