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Non-orthogonal signal transmission over nonlinear optical channels
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Xu, Tongyang, Xu, Tianhua, Bayvel, Polina and Darwazeh, Izzat (2019) Non-orthogonal signal transmission over nonlinear optical channels. IEEE Photonics Journal, 11 (3). 7203313. doi:10.1109/JPHOT.2019.2904960 ISSN 1943-0655.
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Official URL: https://doi.org/10.1109/JPHOT.2019.2904960
Abstract
The performance of spectrally efficient frequency division multiplexing (SEFDM) in optical communication systems is investigated considering the impact of fiber nonlinearities. Relative to orthogonal frequency division multiplexing (OFDM), sub-carriers within SEFDM signals are packed closer at a frequency spacing less than the symbol rate. In order to recover the data, a specially designed sphere decoding detector is used at the receiver end to compensate for the self-created inter carrier interference encountered in SEFDM signals. Our research demonstrated the benefits of the use of sphere decoding in SEFDM and also demonstrates the performance improvement of long-haul optical communication systems using SEFDM compared to the use of conventional OFDM, when fiber nonlinearities are considered. Different modulation formats ranging from4QAM to 32QAM are studied and it is shown that, for the same spectral efficiency and information rate, SEFDM signals allow a significant increase in the transmission distance compared to conventional OFDM signals.
Item Type: | Journal Article | ||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||
Library of Congress Subject Headings (LCSH): | Orthogonal frequency division multiplexing, Optical communications | ||||||
Journal or Publication Title: | IEEE Photonics Journal | ||||||
Publisher: | IEEE Computer Society | ||||||
ISSN: | 1943-0655 | ||||||
Official Date: | 5 June 2019 | ||||||
Dates: |
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Volume: | 11 | ||||||
Number: | 3 | ||||||
Article Number: | 7203313 | ||||||
DOI: | 10.1109/JPHOT.2019.2904960 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Reuse Statement (publisher, data, author rights): | © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Date of first compliant deposit: | 18 March 2019 | ||||||
Date of first compliant Open Access: | 25 March 2019 | ||||||
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