Browsing by Author "Hassan, Sumeyra"

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    Physical Layer Security With Mimo-Generalized Space Shift Keying Modulation Technique in Li-Fi Systems
    (Ieee, 2024) Hassan, Sumeyra; Panayırcı, Erdal; Panayirci, Erdal
    In this study, a physical layer security algorithm based on generalized space shift keying modulation for visible light communication systems has been developed. Initially, the algorithm selects the most suitable index combinations for ideally activating the photodiodes in the receiver through a designed linear encoder, thereby enhancing error correction capabilities. Subsequently, a customized precoding matrix is developed using this index information and the channel state information to provide an optimum bit error rate for the legitimate receiver, Bob. This approach also degrades the bit error performance of the illegitimate receiver, Eve, thus ensuring high-level security at the physical layer in Li-Fi systems. Experiments conducted with Monte-Carlo simulations demonstrate the effectiveness of this methodology for scenarios requiring secure communication.