WHAT IS LiFi?

The Future Of Connectivity
LiFi is high-speed, bi-directional, full duplex and fully networked wireless communication of data using light. LiFi comprises multiple LED light sources that form a wireless network. When an electrical current is applied to an LED light, a stream of light (photons) is emitted from the source. LED lights are semi-conductor devices which mean that the light frequencies that are being emitted can be modulated at extremely high speeds. The modulation of the light frequency at different rates effects the transmission and then reception of a signal by a detector which interprets the changes in light intensity (the signal) as data. The intensity modulation cannot be seen by the human eye.

The applications of WiFi technology and overwhelming demand for data in the information age of global connectivity are increasing exponentially and while WiFi has dramatically changed our lives, it has also produced a situation where available data capacity is now rapidly reaching its radio frequency bandwidth limits. This is ensuring that the bandwidth capacity for the WiFi radio frequency transfer of that data is rapidly reaching its limits.

LiFi is currently not only THE ONLY viable answer to our growing need for increased wireless data capacity, but it also offers a far more secure, far faster and higher capacity method of wireless communication with substantially better data densities.

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HOW DOES LiFi WORK?

Whereas WiFi technology effects data transfer utilizing radio waves, LiFi takes the next revolutionary step in wireless evolution and embeds and transfers data in visible light beams, thereby allowing LiFi to take full advantage of the vastly greater light spectrum bandwidth capacity that is provided by the light spectrum.

Data is captured in modulated light frequencies of a solid-sate LED light source and is then transmitted and received by LiFi-enabled devices. A photosensitive detector demodulates the light frequency signal and converts it back into an electronic data stream and – in so doing – allows for faster-than-ever, more secure, bi-directional wireless communication.

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Learn More About LiFi
  • “LiFi” is short for light fidelity, a revolutionary technology that features bi-directional, networked wireless communications using visible light – via LED – as opposed to traditional radio frequencies.
  • LiFi is based on the unique ability of LED solid-state lighting systems to create a binary code of 1s and 0s with modulated LED frequency flickering that is invisible to the human eye.
  • Data is received and transmitted by electronic devices with photodiodes/photoreceptors within the area of light visibility.
  • LiFi is a complementary technology that works alongside other wireless technologies such as WiFi.
  • LiFi allows you to connect to the internet simply by being within range of an LED light beam.
  • LiFi is a major contributor in attempts to resolve the global struggle for diminishing wireless capacity, otherwise known as the Spectrum Crunch.
  • LiFi provides ubiquitous high-speed wireless access that yields substantially greater data densities than WiFi.
  • LiFi creates the equivalent of a wireless network by turning LED lighting fittings into wireless access points, effectively letting you move between the light sources without losing your connection.
  • One of LiFi’s key selling points is its inherent security properties which eliminate unwanted external network intrusion in an enclosed space, a crucial cyber security issue.
  • Additionally, the integration of illumination and data services guarantees a measurable reduction in infrastructure complexity, energy consumption and associated costs.
  • LED lights naturally form beams that facilitate the creation of separate uplink and downlink channels which essentially ensures more secure data transfer and internet browsing.
  • LiFi does not require any regulatory licensing.
  • LiFi continues to develop and deliver a technology for secure, reliable, high-speed, bi-directional full duplex communication networks that seamlessly integrate data and lighting utility infrastructures whilst significantly reducing energy consumption.
  • The LiFi operating principle connects a router to a LiFi enabled LED lighting fixture that in turn transmits data to the LiFi receptor device which is situated within the halo of light emitted by the LED light.
  • LiFi light fittings are fitted with a driver that modulates the light imperceptibly for high speed optical data transmission.
  • LiFi signals are confined to narrowly focused light beams that cannot travel through walls.
  • LiFi uses LiFi enabled LED lighting that serves the dual purpose of illuminating a room or space in an energy efficient manner whilst also transmitting and receiving data/ information.
  • Data transmission rates in excess of 223Gbps have already been achieved.
  • LiFi content can be precisely tailored to specific locations through what is called ‘geo-fencing’ i.e. you know exactly which people and locations are receiving what kind of data – even within a single room.
  • Each LiFi enabled LED light has its own individual IP address, another major security feature.
  • LiFi is a “beyond disruptive” technology that will create new business models and that will generate commercial opportunities that are ripe for exploitation.
  • The anticipated dominance and lifetime of LiFi LED lighting has dramatically changed the lighting industry and – as such – the need to offer services, including new payment and financing models, creates an unprecedented commercial opportunity for LiFi.

WHAT ARE THE BENEFITS OF LiFi?

Radically enhanced cyber security
Faster connection speeds
Exponentially greater bandwidth capacity
Suitable for utilisation in electromagnetic-sensitive environments
Cost-effective
Low energy consumption owing to incorporation in energy efficient LED lighting technology
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