Light-Fidelity Systems: Architecture and Modulation
Hamada Louiza1*, Lorenz Pascal2 and Djerouni Aicha3
1MAGELLAN Laboratory, Jean Moulin University, France
2IRIMAS Institute, University of Haute Alsace, France
3LARESI Laboratory, University of Sciences and Technology of Oran, Algeria
*Corresponding Author: Hamada Louiza, MAGELLAN Laboratory, Jean Moulin University, France.
Received:
December 11, 2023; Published: December 19, 2023
Abstract
New technologies such as Wireless Fidelity now make wireless Internet access possible. Wi-Fi, also known as IEEE 802.11, uses WLAN -11n to transmit broadband data over a 150 Mbps range. A more robust wireless access technology was needed to address the many issues of security, transmission capacity, throughput, and interference. Optical bandwidth is underutilized and offers promising solutions with tens of gigabits per second, making it particularly suitable for indoor environments. A major technology revolution, such as VLC: visible light communications and/or Li-Fi: light fidelity, might promise significantly upper binary data as well as improved physical layer security and data integrity. This new technology enables the transmission of data through visible light using a light-emitting diode bulb that can be turned on and off several thousand times imperceptibly to the eye. This paper describes modulation schemes in visible light communication systems, introduces Li-Fi and the different noises in a Li-Fi system, and the contribution we made.
Keywords: Light Fidelity; Visible Light Communication; Modulation; OOK; Berlekamp-Massey
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