Li-Fi or by its English name "light fidelity" is a system of wireless data communication that uses LED light to connect and to generate data transfer; This communication system is very similar to Wi-Fi but uses a totally different wavelength, Wi-fi uses radio frequency while Li-Fi handles visible light waves, which gives it better range and coverage. In turn, the connection by Li-Fi allows household objects to establish an internet connection, by only using LED type light; Originally Li-Fi has been created by need of service, according to the largest communication center in the United States, the radioelectric spectrum used by the Wi-Fi system is in progressive saturation, which leads to a slow and inefficient connection On the other hand, the visible light spectrum used by Li-Fi is broader than that of radio frequency, which guarantees a consumption without limitations.
Specifically, data transmission consists of placing a chip on a conventional LED bulb, the main idea is to convert these bulbs into broadband transmitters capable of expanding the connection, this method is known as "visible light communication", It has no other purpose than to promote the constant blinking emitted by the light bulb to send the information; By making these "light winks" many times for a time less than microseconds, this data in binary information is allowed to be captured by any light receiver, making the transduction of the information. the scientistsThose responsible for the development of this patented work go by the name of Harald Haas and his team. In a simple way, the scientist Haas reports that this sending of information uses the Morse code technique, but instead of using a sound, a light bulb is used, which handles a binary language to be recognized by the computer. One of the main advantages of Li-Fi is that its installation is cheaper and easier, because any light bulb can be used to fulfill the role of a router, which also exponentially reduces the use of numerous cables, uses less energy that Wi-Fi and its saturation is almost non-existent.
