Work

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

Year: 2025

Type: article

Abstract: 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.

Source: IET Optoelectronics

DOI: 10.1049/ote2.70016

Authors: Miguel Rêgo, Alexis A. Dowhuszko, Pedro Fonseca, Luís Nero Alves

Institutions: Instituto de Telecomunicações, University of Aveiro, Aalto University

Language: English

Topic: Optical Wireless Communication Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,460

Funders: European Cooperation in Science and Technology, Fundação para a Ciência e a Tecnologia