Audio Transmission Using Light Fidelity

Abstract: Li-Fi(LightFidelity)technologyisaninnovativewirelesscommunicationsys- tem that utilizes visible light for data transmission, offering an alternative to traditional radio frequency-based methods like Wi-Fi.In this approach, audio signals are transmitted through modulated LED light and received by a pho- todiode, whichconvertsthe lightbackintoaudio signals. Thesystemallows forreal-time,high-speed audiotransmissionwithminimalinterference,aslightwavesdonotoverlap withradio signals,makingitidealforenvironmentswhere radio frequencies are either restricted or congested.The implementation in- volves key components such as an LED transmitter, photodiode receiver, and circuitsformodulationanddemodulation. Li-Fioffershigh datasecurity, since light cannot pass through walls, reducing the risk of eavesdropping.Despite challenges such as line-of-sight dependency and susceptibility to ambient light interference, Li-Fi shows immense potential for secure, fast, and interferencefree audio transmission, paving the way for advanced communication systems in both public and private sectors.