On the Performance of SPAD-Based Optical Wireless Communication with ACO-OFDM

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

^*Corresponding author for this work

School of Engineering

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

Abstract / Description of output

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 ACOOFDM 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
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 / Materials (for Non-textual outputs)

Nonlinear distortion
Nonlinear optics
OFDM
Optical distortion
Optical receivers
Optical wireless communication
Photonics
Single-photon avalanche diodes
orthogonal frequency division multiplexing
single-photon avalanche diode

Access to Document

10.1109/LCOMM.2023.3271617

FINAL VERSIONAccepted author manuscript, 425 KB

Terabit Bidirectional Multi-user Optical Wireless System (TOWS) for 6G LiFi
Haas, H. & Safari, M.
EPSRC
1/04/19 → 31/03/22
Project: Research

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 ACOOFDM 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.",

keywords = "Nonlinear distortion, Nonlinear optics, OFDM, Optical distortion, Optical receivers, Optical wireless communication, Photonics, Single-photon avalanche diodes, orthogonal frequency division multiplexing, single-photon avalanche diode",

author = "Shenjie Huang and Cheng Chen and {Dehghani Soltani}, Mohammad and Henderson, {Robert K.} and Harald Haas and Majid Safari",

note = "Funding Information: This work was supported by Engineering and Physical Sciences Research Council (EPSRC) under Grant EP/S016570/1 (TOWS). Publisher Copyright: IEEE",

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doi = "10.1109/LCOMM.2023.3271617",

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AU - Huang, Shenjie

AU - Chen, Cheng

AU - Dehghani Soltani, Mohammad

AU - Henderson, Robert K.

AU - Haas, Harald

AU - Safari, Majid

N1 - Funding Information: This work was supported by Engineering and Physical Sciences Research Council (EPSRC) under Grant EP/S016570/1 (TOWS). Publisher Copyright: IEEE

PY - 2023/7/1

Y1 - 2023/7/1

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 ACOOFDM 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 ACOOFDM 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 - Nonlinear distortion

KW - Nonlinear optics

KW - OFDM

KW - Optical distortion

KW - Optical receivers

KW - Optical wireless communication

KW - Photonics

KW - Single-photon avalanche diodes

KW - orthogonal frequency division multiplexing

KW - single-photon avalanche diode

U2 - 10.1109/LCOMM.2023.3271617

DO - 10.1109/LCOMM.2023.3271617

M3 - Article

SN - 1089-7798

VL - 27

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

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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Projects

Terabit Bidirectional Multi-user Optical Wireless System (TOWS) for 6G LiFi

Cite this