Leveraging IRS Induced Time Delay for Enhanced Physical Layer Security in VLC Systems

Indoor visible light communication (VLC) is considered secure against attackers outside the confined area where the light propagates, but it is still susceptible to interception from inside the coverage area. A new technology, intelligent reflecting surfaces (IRS), has been recently introduced, offering a way to enhance physical layer security (PLS). Most research on IRS-assisted VLC assumes the same time of arrival from all reflecting elements and overlooks the effect of time delay and the associated intersymbol interference. This paper tackles, …

area attackers communication cs.cr cs.it interception irs math.it new technology physical reflecting security systems technology visible vlc