Estimation of the influence of Vanadium dioxide optical filters at the performance of visible light communication systems

摘要

Visible Light Communications (VLC) systems have attracted research and comercial interest over the last few years due to the remarkable characteristics such as the high data rate, low installation and operational cost and the fact that they are environmentally friendly. The transmitter in such systems can be a LED that offers advantageous properties such as brightness, extremely high data transmission and long lifetime, whereas photodiodes are employed as receivers. Therefore, VLC is already used for applications of 5G technology communication networks. However indoor VLC's performance is decreased due to the background noise which is mainly caused by the sunlight radiation. In this work, we study the improvement of a VLC system's SNR after applying a Vanadium dioxide (VO₂) optical filter in front of its receiver to reduce the background sunlight noise. The obtained results are illustrated through the suitable three dimensional figures.