As the need for wireless communications continues to grow throughout the world, LEDs have the potential to replace the technology for Wi-Fi according to a recent study. University of Edinburgh researchers have discovered that LED lights could be used to transmit digital data while at the same time generating lights without affecting the colour or the intensity of the light. At the same time, the LEDs don’t require extra energy to do the work.
LEDs that transmit cool white and warm white lights were used in the study that examined 2 techniques for data transmission. One technique was on off-keying where the lights switch on and off quickly while the other technique studied was continuous signaling. Both of these technologies do not change the brightness of the bulbs, reduce their life expectancy or cause any changes in the colour.
Loss of power has been a long-term concern that has been holding back the adoption of LiFi (Light Fidelity) to transfer data. Removing this hurdle opens the doors to wider research in the field where solutions for more bandwidth are desperately needed.
The quality of the lighting must be preserved while the LEDs are used to piggyback onto resources used to transmit data from and to sensors, tablets, mobile phones and other types of devices. This survey shows that the core capabilities of an LED light is maintained as are the green benefits that go along with them.
Light-based communications have the potential to fulfil the social and economic requirements for future wireless technology. The possibilities are unknown right now but this study certainly looks promising and it could very well be possible that LED lights will someday be supplementing Wi-Fi.
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