Visible light communication is a form of wireless technology that uses radiation in the visible to infra-red light spectrum to transmit data. It is seen as an increasingly robust and reliable way of doing so, and needs not much more than conventional, low-power LEDs to work. Its market is now thought to be capable of being worth US$101.3 billion by the end of 2024.
https://www.notebookcheck.net/The-visible-light-communication-market-may-exceed-US-100-billion-in-value-by-2024.447202.0.html
...One less reason for 5G? For industrial use you could use LiFi with optic fiber.
Quote from: S.Yu on December 13, 2019, 22:10:57
...One less reason for 5G? For industrial use you could use LiFi with optic fiber.
Actually, *yet* another reason against 5G: 802.11ax with optic fiber has been tested at Mettis Aerospace to have achieved 700Mbps, latency <6ms at a bandwidth of merely 80MHz(still a lot of potential left), and deployment of wifi+optic fiber is a mere fraction of 5G, largely because of fewer blood-sucking empty patents.