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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 4, Iss. 7 — Jul. 1, 2012
  • pp: 565–570

Wide-Range Frequency Offset Estimation Method for a DD-OFDM-PON Downstream System

Longquan Chen, Yaojun Qiao, Yuan Zhao, and Yuefeng Ji  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 4, Issue 7, pp. 565-570 (2012)
http://dx.doi.org/10.1364/JOCN.4.000565


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Abstract

We propose a wide-range frequency offset estimation algorithm used in a direct detection orthogonal frequency division multiplexing passive optical network (DD-OFDM-PON) downstream system. Using this method, frequency offset is estimated according to the spectrum of the received DD-OFDM signal. The estimated frequency offset is used for frequency down-conversion in the digital domain to obtain the baseband OFDM signal. With this method, all data-bearing subcarriers should fall into the OFDM bandwidth after frequency down-conversion. The validity of the method is confirmed by an experiment with 20 Gb/s OFDM-PON downstream transmission.

© 2012 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2410) Fiber optics and optical communications : Fibers, erbium

ToC Category:
Research Papers

History
Original Manuscript: September 16, 2011
Revised Manuscript: May 25, 2012
Manuscript Accepted: June 1, 2012
Published: June 21, 2012

Citation
Longquan Chen, Yaojun Qiao, Yuan Zhao, and Yuefeng Ji, "Wide-Range Frequency Offset Estimation Method for a DD-OFDM-PON Downstream System," J. Opt. Commun. Netw. 4, 565-570 (2012)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-4-7-565

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