1. Uses of Li-Fi: The military
BT has been testing Li-Fi in military bases, and gave Techworld a demonstration of the technology during a tour of its principal research facility in Adastral Park in Suffolk.
Unlike Wi-Fi, which radiates over a long-range and requires wiring and time to set up and run, Li-Fi coverage can be limited to a small lit area such as a tent. It can also limit access to sensitive information under specific light and in areas where mobile phones can't be used such as ammunition dumps.
"One of the limitations you have when you deploy at divisional headquarters is you could be hundreds of kilometres of fibre rolling out," says former RAF serviceman Tony Boyle, now strategy director for global government and health at BT Global Services. "You're not rolling out the fibre, you're using your traditional electrical light system."