Li-Fi vs Wi-Fi technology

Wi-Fi networks in recent times are proving inadequate to support the growing demand for connectivity, which is now essential for an increasingly connected world and, even more so, for all emerging industries: from Metaverse to Augmented & VR technologies.

Current technologies may not be able to cope with the needs of consumers, which is why we are currently looking with increasing interest at new technologies that allow data to be transmitted wirelessly by exploiting other, much more high-performance and free portions of the spectrum. This is also why 6G, i.e. sixth generation connectivity, will fully embrace the Thz frequencies of light, from the visible to the non-visible.

LiFi technology is already an excellent alternative, capable of overcoming many of the limitations of Wi-Fi and guaranteeing an information transmission speed in the order of Gbps. This innovative wireless connection system is also more secure, reliable and has higher bandwidth.

Wi-Fi is also known for one of its most important disadvantages, namely the generation of radio-frequency electromagnetic fields: these are responsible for the limitation or total exclusion of the use of this system in certain environments, such as military or medical.

LiFi, on the other hand, by exploiting light and not radio waves, can also be used in sensitive environments such as those mentioned above.

Advantages of LiFi versus Wi-Fi

Firstly, compared to Wi-Fi, LiFi has greater network security: every single piece of information or data transmitted is protected from third-party users. These are, in fact, transmitted through a specific optical range that does not cross physical barriers.

To hack a network (sniffing), therefore, one would have to be in the same room where the data transmission takes place. This solution effectively eliminates the possibility of interception or sniffing by hackers, which is possible with the use of radio waves.

A second advantage of this innovative system lies in its non use of radio frequency signals and the absence of interference. This is an extremely important benefit as it allows the system to be used even inside closed, sensitive environments where other equipment is present that would normally interfere.

In terms of data transmission speed, LiFi is also significantly better than Wi-Fi, as it travels in the Gbps range. The speed remains unchanged despite various downloads or uploads and the number of connected devices. Furthermore, the lightwave spectrum of LiFi is much larger and more advantageous, about 10,000 times wider than the common radio frequency spectrum.

This innovative data transmission system realises the principles of ecological, digital and network infrastructure transition of the PNRR in a single solution. In order to work, it requires no special repeaters or antennas, but a non-visible LiFi LED light body to be connected to the network cable and a dongle for each device to be connected.

Through this system, not only is a green connectivity guaranteed, but also the energy consumption related to the use of the latest generation of LED lamps is reduced.

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