LED Wireless Communication Nodes In Our Future?

Sounds like a great idea, this would solve the low (or non existent) wireless data rates that are found in the core of large buildings. Should be inexpensive to implement as well. So when can I get my LightFi lamp and alarm clock combo?

The objective of the initiative is to use visible light for communication between wireless devices and LED-based lighting fixtures. The LED-based scheme could also be used to communicate between automobiles, which are increasingly being equipped with LED lamps. The overall goal is to build new communication capabilities into all LED lights and reduce congestion in current RF bands.

LED lamps could serve as wireless communication nodes