Algorithm for bit identification in RSE-based camera VLC links impaired by blooming

Felipe Farinelli, Sergio L. Stevan Jr., Alexandre Pohl

DOI: 10.14209/sbrt.2022.1570817513

Evento: XL Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2022)

Keywords: VLC CMOS Camera Manchester coding. blooming effect

Abstract

A method to identify bits impaired by the blooming effect in a LED - CMOS camera visible light communication link that uses the rolling shutter effect (RSE) is described. The algorithm is based on OOK modulation, Manchester coding and a geometric procedure to interpret the received information. Tests executed to measure the algorithm performance revealed an average run-time of 2.5 ms, showing that the proposed technique has a good potential to be employed in short distance identification and positioning systems.

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