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Linear and Nonlinear Frequency-Division Multiplexing

Yousefi, M; Yangzhang, X; (2020) Linear and Nonlinear Frequency-Division Multiplexing. IEEE Transactions on Information Theory , 66 (1) pp. 478-495. 10.1109/TIT.2019.2941479. Green open access

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Abstract

Two signal multiplexing schemes for optical fiber communication are considered: Wavelength-division multiplexing (WDM) and nonlinear frequency-division multiplexing (NFDM), based on the nonlinear Fourier transform. Achievable information rates (AIRs) of NFDM and WDM are compared in a network scenario with an ideal lossless model of the optical fiber in the defocusing regime. It is shown that the NFDM AIR is greater than the WDM AIR subject to a bandwidth and average power constraint, in a representative system with one symbol per user. The improvement results from nonlinear signal multiplexing.

Type: Article
Title: Linear and Nonlinear Frequency-Division Multiplexing
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/TIT.2019.2941479
Publisher version: https://doi.org/10.1109/TIT.2019.2941479
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 fiber, nonlinear Fourier transform, nonlinear frequency-division multiplexing, wavelength-division multiplexing.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
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 Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10090232
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