Li-Fi (Light Fidelity) is a high-speed wireless communication technology first announced in 2011 by British scientist Harald Haas. Wireless transmission of information in Li-Fi technology takes place using LEDs.
What is the difference between Li-Fi and Wi-Fi?
Wi-Fi technology uses radio waves to transmit data. However, there are more and more users every day, and there are fewer available frequencies, which can soon lead to various interference in communication. The new Li-Fi network uses pulses of light in the visible spectrum to transmit information. LEDs in fluorescent lights turn on and off so quickly that the human eye cannot see the blinking. Scientists note that in the results of experiments, the average speed of Li-Fi is about 100 times faster than Wi-Fi.
Li-Fi is already undergoing testing in offices and laboratories in Tallinn, Shanghai and many other cities.
Will Li-Fi technology replace its predecessor?
Most probably not. Despite the high data transfer rate of the new technology, it is, of course, impossible to use in the dark. In addition, the operation of a Li-Fi router cannot go beyond one room, so the source must be installed separately in each room. Where a high speed of information transfer is required, for example, in offices, Li-Fi routers will be installed. It is highly unlikely that this technology will become popular in apartments and houses. So Li-Fi and Wi-Fi will coexist peacefully with each other, and smartphones will smoothly transition from one network to another.
