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Broadband information broadcasting using LED-based interior lighting

: Grubor, J.; Randel, S.; Langer, K.D.; Walewski, J.W.


Journal of Lightwave Technology 26 (2008), Nr.24, S.3883-3892
ISSN: 0733-8724
Fraunhofer HHI ()

Emergence of white-light LEDs allows the combination of lighting and information broadcast functionality in one optical source. We investigate analytically and by Monte Carlo simulations feasible data transmission rates in a moderate-size office room, where we assume illumination conforming to standards and the use of commercially available LEDs and photodiodes. The performances of systems relying on baseband [i.e., pulse-amplitude modulation (PAM)] and discrete multitone (DMT) transmission show that data rates of more than 100 Mbit/s can be expected despite the rather low bandwidth of the system.