With data speeds 100 times faster than Wi-Fi, Li-Fi could be the next big connectivity option
Imagine a connection option for your phone where you simply have to turn on a light to connect to the internet. This technology, called Li-Fi (for Light Fidelity), uses light waves to transmit data, unlike Wi-Fi, which uses radio waves. The big advantage of Li-Fi is speed; Li-Fi can deliver 100 times faster data speeds than Wi-Fi. Li-Fi’s light signals are invisible to the human eye.
Li-Fi transmits data using LED bulbs that send the data in pulses of light, similar to how Morse code works. In addition to being faster, Li-Fi is also more secure than Wi-Fi, as signals are less likely to penetrate walls. And Li-Fi transmitters can be built into light fixtures, making it easier for mobile users to find extremely fast internet service.
“Security is another important benefit of Li-Fi, as signals are limited to the area illuminated by the light source and cannot penetrate walls. The risk of unauthorized access is significantly reduced.” – The Li-Fi Group
Speaking of speed, Li-Fi can theoretically transmit data at up to 224 Gbps, compared to the 1 Gbps that amazes us today. The technology would be very useful in situations where high speeds and low latency are required. In addition, it generates less radiation than Wi-Fi.
How Li-Fi works. | Image credit: The Li-Fi Group from CNET
Li-Fi does have some drawbacks. The biggest one is that it can only be used indoors. On the other hand, most smartphone users are connected to WiFi indoors and rely on cellular connectivity outdoors, so this little hiccup isn’t a big deal.
“Contrary to what we sometimes read or hear, LiFi was not developed with the aim of eradicating WiFi. It is above all about expanding the field of possibilities in the field of telecommunications – thinking about the connectivity of today and tomorrow by freeing ourselves from the obstacles of current technologies without giving up their advantages.” – Oldecomm
It seems that it will be several years before Li-Fi is deployed. One of the industry leaders in this field, Oldecomm, says the technology should be ready for use between 2024 and 2029. Promisingly, another company, Li-Fi Group, says it is in contact with companies in various industries, including consumer electronics, automotive, telecommunications and more.
The company adds that the growing demand for connectivity options, especially in areas where traditional technologies cannot be deployed, will encourage more companies to look into Li-Fi.
