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Asian Journal of Engineering, Sciences and Technology - Volume 10, Issue 2 2020
By Maimoona Ahmad, Rida Suleman, Talha Ahmed
Keywords: Delay root mean square(Drms), Light fidelity (LIFI), Line of sight (LOS), Reflection of light (REF), Visible light communication (VLC, full duplex, Orthogonal Frequency Division Multiplexing (OFDM).
In later a long time, intrigued in optical wireless (OW) as a promising complementary technology for RF innovation has picked up modern momentum fueled by noteworthy arrangements in strong state lighting innovation. The LI-FI communication technology aims to meet the growing demand for high-speed data transmission. Light-Fidelity (Li-Fi) is a technology that uses a method of 'illumination' to transmit data. The intensity of light fluctuates dramatically. In Li-Fi, the light can be switched on and off at high speeds. One of the more advanced optical remote communication methods is Visible Light Communication (VLC), in which light within the visible range (375nm-780nm) is used as a medium for data transmission. The research discussed indoor (VLC) and (Li-Fi) with system parameters. This article proposes a multi-user full-duplex VLC framework utilizing white transmitting diodes (LEDs) for smart domestic innovations. This paper by analyzing the system design hardware (the transmitter and receiver working) bi-directional text and Audio with the calculated parameters such as BERQFactor, EYE and constellation diagram with OFDM modulation. This work demonstrated different channel modeling techniques like LOS, Drms, REF in indoor visible light communication with OFDM modulations to analyze the impact of these different channel modeling in Li-Fi technology.