Efficient capacity enhancement using OFDM with interleaved subcarrier number modulation in bandlimited UOWC systems

Chen, Jiamin and Deng, Bohua and Chen, Chen and Liu, Min and Fu, H. Y. and Haas, Harald (2023) Efficient capacity enhancement using OFDM with interleaved subcarrier number modulation in bandlimited UOWC systems. Optics Express, 31 (19). pp. 30723-30734. ISSN 1094-4087 (https://doi.org/10.1364/oe.496965)

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Abstract

We propose and demonstrate an efficient capacity enhancement scheme for bandlimited underwater optical wireless communication (UOWC) systems by utilizing orthogonal frequency division multiplexing with interleaved subcarrier number modulation (OFDM-ISNM). In the proposed OFDM-ISNM, joint number and constellation mapping/de-mapping is utilized to avoid error propagation and subblock interleaving is further applied to address the low-pass effect of the bandlimited UOWC system. The feasibility and superiority of the proposed OFDM-ISNM scheme for practical bandlimited UOWC systems have been verified through both simulations and experiments. The obtained results demonstrate that the proposed OFDM-ISNM scheme is capable of efficiently improving the achievable data rate of the bandlimited UOWC system. Specifically, the experimental results show a significant 28.6% capacity enhancement by OFDM-ISNM over other benchmark schemes, achieving a data rate of 3.6 Gbps through a 2-m water channel.

  • Item type:Article
    ID code:86762
    Dates:
    Date
    Event
    11 September 2023
    Published
    1 September 2023
    Published Online
    23 August 2023
    Accepted
    Notes:©2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement. Authors and readers may use, reuse, and build upon the article, or use it for text or data mining without asking prior permission from the publisher or the Author(s), as long as the purpose is non-commercial and appropriate attribution is maintained.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering > Telecommunication
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:22 Sep 2023 13:06
    Last modified:25 Apr 2024 01:36
    URI:https://strathprints.strath.ac.uk/id/eprint/86762
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