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

Shenjie Huang; Cheng Chen; Mohammad Dehghani Soltani; Robert Henderson; Harald Haas; Majid Safari

doi:10.1109/lcomm.2023.3271617

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

Shenjie Huang
, Cheng Chen
, Mohammad Dehghani Soltani
, Robert Henderson
, Harald Haas
, Majid Safari

Electronic And Electrical Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

24 Downloads (Pure)

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.

Original language	English
Pages (from-to)	1809-1813
Number of pages	5
Journal	IEEE Communications Letters
Volume	27
Issue number	7
Early online date	28 Apr 2023
DOIs	https://doi.org/10.1109/lcomm.2023.3271617
Publication status	Published - 1 Jul 2023

Keywords

optical wireless communication
orthogonal frequency division multiplexing (OFDM)
Single-photon avalanche diode (SPAD)

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10.1109/lcomm.2023.3271617

Huang-etal-CL-2023-On-the-performance-of-SPAD-based-optical-wireless-communicationAccepted author manuscript, 460 KBLicence: Strath_1

Cite this

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title = "On the performance of SPAD-based optical wireless communication with ACO-OFDM",

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.",

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AU - Haas, Harald

AU - Safari, Majid

N1 - © 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.

PY - 2023/7/1

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N2 - 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.

AB - 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.

KW - optical wireless communication

KW - orthogonal frequency division multiplexing (OFDM)

KW - Single-photon avalanche diode (SPAD)

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DO - 10.1109/lcomm.2023.3271617

M3 - Article

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SP - 1809

EP - 1813

JO - IEEE Communications Letters

JF - IEEE Communications Letters

IS - 7

ER -

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

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