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Experimental Demonstration of Direct-Detection Optical Fast-OFDM using Memory Polynomials

Vieira, Luis Carlos; Darwazeh, Izzat; Hussein, Shirin; Liu, Chin-Pang; Mitchell, John; (2021) Experimental Demonstration of Direct-Detection Optical Fast-OFDM using Memory Polynomials. In: Proceedings of the 2021 IEEE Latin-American Conference on Communications (LATINCOM). (pp. pp. 1-5). Institute of Electrical and Electronics Engineers (IEEE) Green open access

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Abstract

Fast-OFDM has been used extensively in optical and wireless systems, with its advantages of simple implementation and spectral efficiency making it a good candidate for optical access networks. This work proposes a new time domain equalization method for Fast-OFDM optical access networks, which deals with ameliorating the effects of linear and nonlinear behavior of system components and optical channel. The proposed equalization technique simplifies system implementation and shows excellent results when used in conjunction with training signals designed for the purpose of minimization of least square error and hence equalization of the channel. The work reports details of the design approach and then implementation of the algorithm in an experimental test bed with an direct-detection optical link and a 10 km single mode fibre. Experimental results, obtained for transmission of 7.5 Gbit/s 4PAM signals, demonstrate error rate/transmission power advantages for the new equalization technique, relative to traditional system implementation. Results are shown for various system implementation and parameters and are based on real time signal transmission and off line receiver processing. The reported results are the first demonstration of such a system.

Type: Proceedings paper
Title: Experimental Demonstration of Direct-Detection Optical Fast-OFDM using Memory Polynomials
Event: 2021 IEEE Latin-American Conference on Communications (LATINCOM)
Location: Santo Domingo, Dominican Republic
Dates: 17th-19th November 2021
ISBN-13: 978-1-6654-4035-6
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/latincom53176.2021.9647844
Publisher version: https://doi.org/10.1109/latincom53176.2021.9647844
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.
Keywords: Optical access networks, Fast OFDM, equalization
UCL classification: UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10142934
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