Experimental Demonstration of 32-PAM Optical Camera Communication Using a Low Cost and a High Cost Camera

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Authors

Date

2025-01

Department

Department of Information and Communications Engineering

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Mcode

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Language

en

Pages

14

Series

IET Optoelectronics, Volume 19, issue 1, pp. 1-14

Abstract

This work demonstrates experimentally the feasibility of using up to 32-PAM in rolling shutter based optical camera communication (OCC). Two different cameras have been used for OCC performance comparison, namely, a low-cost Pi Camera V2.1 and a higher-cost Alvium 1800 U-500m. Based on the limitations evidenced by this analysis, a decoding algorithm has been proposed to recover the transmitted signal from the acquired images. The experimental evaluation has been carried out for distances up to 2 m, using 8-PAM, 16-PAM and 32-PAM, analysing the received samples histograms and the symbol error rate (SER) for both cameras. Based on the collected experimental results, it is concluded that 32-PAM is possible with both cameras, with a maximum SER of 0.16% for the Alvium camera and 5.05% for the Pi Camera. Finally, it is observed that both the signal and noise amplitudes remain constant for the tested distances, resulting in a SER that does not notably depend on the distance between the transmitter and receiver.

Description

Publisher Copyright: © 2025 The Author(s). IET Optoelectronics published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology.

Keywords

cameras, image sensors, optical communication, pulse amplitude modulation

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DOI

10.1049/ote2.70016

Citation

Rêgo, M, Dowhuszko, A A, Fonseca, P & Alves, L N 2025, 'Experimental Demonstration of 32-PAM Optical Camera Communication Using a Low Cost and a High Cost Camera', IET Optoelectronics, vol. 19, no. 1, e70016, pp. 1-14. https://doi.org/10.1049/ote2.70016

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https://urn.fi/URN:NBN:fi:aalto-202511268904

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