Adaptive time synchronization and frequency offset estimation for CO-OFDM

S.T. Le*, M.E. McCarthy, E. Giacoumidis, N.J. Doran

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We propose a robust adaptive time synchronization and frequency offset estimation method for coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems by applying electrical dispersion pre-compensation (pre-EDC) to the pilot symbol. This technique effectively eliminates the timing error due to the fiber chromatic dispersion, thus increasing significantly the accuracy of the frequency offset estimation process and improving the overall system performance. In addition, a simple design of the pilot symbol is proposed for full-range frequency offset estimation. This pilot symbol can also be used to carry useful data to effectively reduce the overhead due to time synchronization by a factor of 2.

Original languageEnglish
Title of host publication2014 9th international symposium on Communication Systems, Networks and Digital Signl Processing, CSNDSP 2014
PublisherIEEE
Pages767-770
Number of pages4
ISBN (Print)978-1-4799-2581-0
DOIs
Publication statusPublished - 16 Oct 2014
Event9th IEEE/IET international symposium on Communication Systems, Networks and Digital Signl Processing - Manchester Metropolitan University, Manchester, United Kingdom
Duration: 23 Jul 201425 Jul 2014

Symposium

Symposium9th IEEE/IET international symposium on Communication Systems, Networks and Digital Signl Processing
Abbreviated titleCSNDSP 2014
CountryUnited Kingdom
CityManchester
Period23/07/1425/07/14

Fingerprint

Orthogonal frequency division multiplexing
Synchronization
Chromatic dispersion
Fibers
Compensation and Redress

Bibliographical note

Funding: EPRSC programme under Grant UNLOC (EP/J017582/1) and the FP7 project DISCUS (Grant Agreement 318137).

Keywords

  • optical communications
  • orthogonal frequency division multiplexing (OFDM)
  • synchronization

Cite this

Le, S. T., McCarthy, M. E., Giacoumidis, E., & Doran, N. J. (2014). Adaptive time synchronization and frequency offset estimation for CO-OFDM. In 2014 9th international symposium on Communication Systems, Networks and Digital Signl Processing, CSNDSP 2014 (pp. 767-770). IEEE. https://doi.org/10.1109/CSNDSP.2014.6923930
Le, S.T. ; McCarthy, M.E. ; Giacoumidis, E. ; Doran, N.J. / Adaptive time synchronization and frequency offset estimation for CO-OFDM. 2014 9th international symposium on Communication Systems, Networks and Digital Signl Processing, CSNDSP 2014. IEEE, 2014. pp. 767-770
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Le, ST, McCarthy, ME, Giacoumidis, E & Doran, NJ 2014, Adaptive time synchronization and frequency offset estimation for CO-OFDM. in 2014 9th international symposium on Communication Systems, Networks and Digital Signl Processing, CSNDSP 2014. IEEE, pp. 767-770, 9th IEEE/IET international symposium on Communication Systems, Networks and Digital Signl Processing, Manchester, United Kingdom, 23/07/14. https://doi.org/10.1109/CSNDSP.2014.6923930

Adaptive time synchronization and frequency offset estimation for CO-OFDM. / Le, S.T.; McCarthy, M.E.; Giacoumidis, E.; Doran, N.J.

2014 9th international symposium on Communication Systems, Networks and Digital Signl Processing, CSNDSP 2014. IEEE, 2014. p. 767-770.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Le ST, McCarthy ME, Giacoumidis E, Doran NJ. Adaptive time synchronization and frequency offset estimation for CO-OFDM. In 2014 9th international symposium on Communication Systems, Networks and Digital Signl Processing, CSNDSP 2014. IEEE. 2014. p. 767-770 https://doi.org/10.1109/CSNDSP.2014.6923930