VLC oriented energy efficient driver techniques


LEDs are substituting fluorescent and incandescent bulbs as illumination sources due to their low power consumption and long lifetime. Visible Light Communications (VLC) makes use of the LEDs short switching times to transmit information. Although LEDs switching speed is around Mbps range, higher speeds (hundred of Mbps) can be reached by using high bandwidth-efficiency modulation techniques. However, the use of these techniques requires a more complex driver which elevates drastically its power consumption. In this work an energy efficiency analysis of the different VLC modulation techniques and drivers is presented. Besides, the design of new schemes of VLC drivers is described.

Publication type: 
Published in: 
Optical Design and Engineering V Barcelona. Procc. SPIE Vol. 8550
ISBN-10: 0819493023 ISBN-13: 978-0819493026
Publication date: 
November 2012
CeDInt Authors: