Chromatic dispersion monitoring by extended Kalman filter for coherent optical OFDM systems

Xinwei Du, Yan Li, Mohan Gurusamy, Changyuan Yu, Pooi Yuen Kam

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

his paper proposes to monitor the total accumulated chromatic dispersion (CD) by using extended Kalman filter (EKF) for coherent optical orthogonal frequency-division multiplexing (CO-OFDM) systems. Accurate estimation performance can be achieved by only one OFDM training symbol. Simulations results show that the proposed EKF method can quickly converge to the exact dispersion value within 40 subcarriers. Besides, the influence of inter-carrier interference (ICI) induced by the carrier frequency offset (CFO) and laser phase noise (LPN) on the CD monitoring performance is also investigated. Even with the appearance of 3 GHz CFO and 200 kHz combined laser linewidth (CLW) and without compensation, the mean square error (MSE) and bit error rate (BER) of the proposed method vary little, which illustrate its good tolerance to the ICI.

Original languageEnglish
Title of host publication2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-4
Number of pages4
ISBN (Electronic)9781509062904
DOIs
Publication statusPublished - 31 Jul 2017
Event2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 - Singapore, Singapore
Duration: 31 Jul 20174 Aug 2017

Publication series

Name2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
Volume2017-January

Conference

Conference2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
Country/TerritorySingapore
CitySingapore
Period31/07/174/08/17

Keywords

  • Chromatic dispersion (CD)
  • Coherent optical orthogonal frequency-division multiplexing (CO-OFDM)
  • Extended Kalman filter (EKF)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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