IV. Advantages of Li-Fi over Wi-Fi Technology [9] Wi-Fi Li-Fi A. TRANSMISSION SECURITY: From the security point of view, Wi-Fi is less secure as radio waves can penetrate through walls. They can be traced. If someone has knowledge about this and has bad intentions, they can misuse it. This create a major security issue. Li-Fi is based on data transmission through visible lights. Li-Fi is secure as light rays cannot penetrate through walls. They cannot be misused and traced by other People, who