NLEND, S.; SWART, T. G. Multi-level Optical On-Off Line Code for Flat-like Power Spectral Density: Outdoor Visible Light Communications. ECTI Transactions on Electrical Engineering, Electronics, and Communications, [S. l.], v. 21, n. 3, p. 251466, 2023. DOI: 10.37936/ecti-eec.2023213.251466. Disponível em: https://ph02.tci-thaijo.org/index.php/ECTI-EEC/article/view/251466. Acesso em: 29 aug. 2026.