2023-07-14 07:33:55
Faced with the explosion of connectivity needs and the congestion of existing networks, Li-Fi, a wireless communication technology using light, presents itself as an innovative and complementary solution to current technologies and could well make your wi- fi obsolete. The Institute of Electrical and Electronics Engineers (IEEE) has just approved the 802.11bb standard for Li-Fi, marking an important step in the recognition and development of this new technology.
Li-Fi: what is it?
The Li-Fi (Light Fidelity) is a wireless communication system that uses visible light to transmit data between electronic devices. Unlike Wi-Fi which operates on radio frequencies, Li-Fi offers a number of potentially very useful benefits in certain usage contexts.
The advantages of Li-Fi over Wi-Fi:
Transmission speed: Li-Fi theoretically allows much faster speeds than Wi-Fi, up to several gigabits per second.
Security : The light does not pass through walls, which limits the range of the signal and reduces the risk of interception or hacking from the outside.
Electromagnetic compatibility : Li-Fi does not interfere with radio waves, which makes it particularly interesting for environments susceptible to electromagnetic interference, such as hospitals or airplanes.
Spectrum use: The light spectrum is much wider and less crowded than the radio spectrum, providing increased communication capacity and avoiding network saturation.
Li-Fi standardization by the IEEE
The appearance of the 802.11bb standard for Li-Fi, recently published by the IEEE, constitutes an important step towards the widespread adoption of this technology. This standardization will indeed allow the compatibility between Li-Fi devices developed by different companiesthus promoting their interoperability and stimulating innovation in this field.
Obstacles to overcome
Despite these promising prospects, Li-Fi still faces several challenges to establish itself as a real alternative to Wi-Fi:
The need to have a constant light source to ensure data transmission may limit the possibilities of using Li-Fi, especially outdoors or in poorly lit areas. There limited signal range due to the inability of light to pass through walls may also restrict Li-Fi applications, although this may be considered a safety benefit. The lack ofcompatible equipment currently available on the market still hinders the adoption of Li-Fi by users and businesses, although standardization by the IEEE should help to accelerate this process.
Future prospects for Li-Fi
The official recognition of Li-Fi by the IEEE is a significant step towards wider adoption of this technology. While Li-Fi will probably not replace Wi-Fi or 5G in all contexts, it could be particularly useful in situations where the specific advantages it offers (speed, security, lack of interference) are research.
THE companies and researchers working on Li-Fi continue to improve its performance and explore new potential applications, particularly in the fields of health, smart lighting, transport or industry 4.0. It is therefore likely that we will hear more and more about Li-Fi in the years to come, as this innovative technology finds its way into our digital landscape.
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