Özet:

Wireless-fidelity (Wi-Fi) and Bluetooth are examples of current wireless communication technologies that utilize the radio waves as primary source for data transport. Despite the widespread use of these technologies, there is a pressing need to investigate new methods for transmitting data wirelessly and efficiently. The reason for this is due to the band of radio frequency (RF) present limits, which has overpopulation and disturbance signals from other RF applications. More research work has been done to prove that visible light may be used as a wireless source for data transport in order to investigate alternatives. As a result, a German physicist named Harald Haas presented a new technology called light-fidelity (Li-Fi). This is a wireless technology that uses visible light instead of the radio wave as a communication medium. The scientific community has recently been drawn to Li-Fi technology. Wireless technology has advanced to the point that it is now necessary to send large amounts of data on a daily basis. Electromagnetic waves, or radio waves, are the most common technique of transmitting data wirelessly. Due to limited spectrum availability and encroachment, radio waves can only support a lower bandwidth. Data transmission via visible light communication is one solution to this problem (VLC). Wi-Fi is used to provide wireless coverage within a building, but Li-Fi is ideal for providing high-density wireless data coverage in a confined area while reducing radio interference. We use LEDs at the transmitter end and photo detectors at the receiver end to send multimedia data between two terminals utilising Li-Fi.

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