Li-fi operation relies on a light source, like a standard LED bulb, an internet connection, and a photo detector. Estonian start-up Velmenni conducted a test of Li-fi’s capabilities in Tallinn. During the trial, a Li-fi-enabled light bulb was employed to transmit data at a rate of 1Gbps. Laboratory experiments have even indicated theoretical speeds reaching as high as 224Gbps.
The testing encompassed an office setting, facilitating internet access for workers, as well as an industrial space where it contributed to an intelligent lighting solution. Chief Executive Deepak Solanki, speaking with the International Business Times, expressed the potential for this technology to reach consumers in “three to four years.”
Technology Description: Li-fi uses a light source, typically an LED bulb, to transmit data. The intensity of the light is modulated at high speeds, which allows it to carry data. A photo detector on the receiving end captures the changes in light intensity and converts them back into data. This process enables wireless communication using visible light.
Data Transmission Speeds: The description mentions that Li-fi has the potential to provide internet access speeds up to 100 times faster than traditional Wi-Fi. The speeds mentioned in the text are up to 1Gbps (gigabit per second) for practical use and theoretical speeds reaching as high as 224Gbps in laboratory experiments.
Trials and Testing: The technology was successfully trialed in a functional office environment by the Estonian start-up Velmenni in Tallinn. A Li-fi-enabled light bulb was used to transmit data at 1Gbps during the trial. The testing included both office and industrial settings, showcasing its potential for providing internet access and contributing to intelligent lighting solutions.
Potential Consumer Availability: The CEO of Velmenni, Deepak Solanki, mentioned that the technology could potentially reach consumers within “three to four years.” This indicates that Li-fi was on a development path that could lead to commercial availability in the near future.
Overall, Li-fi’s use of visible light for data transmission offers several advantages, such as higher data speeds, reduced electromagnetic interference, and greater security due to the limited range of visible light. However, it also has limitations, such as its dependence on line-of-sight communication (as light cannot penetrate walls), which may impact its practicality in certain scenarios. Nevertheless, the technology shows great potential for complementing and even competing with existing wireless communication technologies like Wi-Fi.