IEEE Adopts New Standard Based on Li‑Fi Optical Information Transmission

Hornbeam

2 min

View Original

The Institute of Electrical and Electronics Engineers (IEEE) has adopted a new wireless communication standard based on optical transmission of information Light Fidelity (Li-Fi) Instead of radio waves, Li-Fi transmits data using flickering light in the optical range, creating them with conventional LED lamps.

When transferring data, normal users do not notice flicker at all. This is due to the flicker transmission frequency above 60 Hz, which is not perceived by human vision. Li‑Fi proponents such as pureLiFi, Fraunhofer HHI and the Light Communications 802.11bb Task Group claim that the technology will provide fast, reliable and secure connections compared to today's technologies, including Wi‑Fi and 5G. So they claim the transfer speed of Li-Fi is 100 times faster than Wi-Fi - 224 GB / s.

pureLiFi, Fraunhofer HHI and Philips have already integrated Li-Fi equipment into conventional lighting systems in homes and offices. There are companies offering to transmit data using new technology through street lights, headlights and brake lights. The latter can ensure the "communication" of smart machines with each other.

Li-Fi developers expect that with the adoption of the new standard, such systems will be interoperable with alternatives based on Wi-Fi. According to experts, the official recognition of the new standard will not lead to the disappearance of Wi-Fi, 5G and wired networks. Technology based on wired and radio communications has some advantage over optical.

The advantages of Li‑Fi are not only high speed, but also work in the optical spectrum, this provides reliability, low latency and makes it extremely difficult to intercept data. Because Li-Fi light does not penetrate walls, unlike a Wi-Fi signal, and data transmission cannot be intercepted from the outside, since the light does not spread outside the room.

After the publication of the IEEE 802.11bb standard, manufacturers are going to implement it more widely, where conditions allow. pureLiFi has already prepared the Light Antenna ONE module for integration into connected devices. The module measures 14.5mm and is offered to OEMs for evaluation and testing. 

Просмотры: