On the performance of SPAD-based optical wireless communication with ACO-OFDM

Huang, Shenjie and Chen, Cheng and Soltani, Mohammad Dehghani and Henderson, Robert and Haas, Harald and Safari, Majid (2023) On the performance of SPAD-based optical wireless communication with ACO-OFDM. IEEE Communications Letters, 27 (7). pp. 1809-1813. ISSN 1089-7798 (https://doi.org/10.1109/lcomm.2023.3271617)

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Abstract

The nonlinear distortion introduced by the dead time strongly limits the throughput of the highly sensitive SPAD-based optical wireless communication (OWC) systems. Optical OFDM can be employed in the systems with SPAD arrays to improve the spectral efficiency. In this work, a theoretical performance analysis of SPAD-based OWC system with asymmetrically-clipped optical OFDM (ACO-OFDM) is presented. The impact of the SPAD nonlinearity on the system performance is investigated. In addition, the comparison of the considered scheme with DCO-OFDM is presented showing the distinct reliable operation regimes of the two schemes. In low optical power regimes, ACO-OFDM outperforms DCO-OFDM with around 4 dB power gain achieved by 16-QAM ACO-OFDM over 4-QAM DCO-OFDM. However, DCO-OFDM is in turn more preferable in high power regimes which extends the maximal tolerable received optical power by 7.4 dB.

  • Item type:Article
    ID code:85436
    Dates:
    Date
    Event
    1 July 2023
    Published
    28 April 2023
    Published Online
    2 April 2023
    Accepted
    Notes:© 2023 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.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering > Telecommunication
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:10 May 2023 11:05
    Last modified:13 Apr 2024 00:39
    URI:https://strathprints.strath.ac.uk/id/eprint/85436
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