000008554 001__ 8554 000008554 005__ 20150429092416.0 000008554 037__ $$aTAZ-PFC-2012-426 000008554 041__ $$aeng 000008554 1001_ $$aGancedo Sanz, Mario 000008554 24500 $$aVisible light data communications 000008554 260__ $$aZaragoza$$bUniversidad de Zaragoza$$c2012 000008554 506__ $$aby-nc-sa$$bCreative Commons$$c3.0$$uhttp://creativecommons.org/licenses/by-nc-sa/3.0/ 000008554 520__ $$aIn the first part of this paper, a general overview of Visible Light Communications (VLC)is described. After an introduction which covers a short historical overview, the main characteristics of this technology including applications and comparisons with other wireless technologies (radiofrequency and infrared communication) are presented. Next, the basic configuration of a VLC system will be covered, including the VLC transmitter, the VLC channel, the VLC receiver and the main modulation techniques used. This part concludes with some challenges being worked, standardization efforts and general conclusions. In the second part, the practical work of the project is presented. We focused on the electrical and optical characteristics of the VLC transmitter: Light Emitting Diodes (LEDs).Experiments carried out in different commercial LEDs such as I-V characteristics, spectra measurements, Light Power vs. Current characteristics, pulse response and frequency response are described and discussed. 000008554 521__ $$aIngeniero Técnico Industrial (Esp. Electrónica Industrial) 000008554 540__ $$aDerechos regulados por licencia Creative Commons 000008554 700__ $$aKelly, Anthony$$edir. 000008554 7102_ $$aUniversidad de Zaragoza$$bIngeniería Eléctrica$$cIngeniería Eléctrica 000008554 7202_ $$aPorta Royo, Luis$$eponente 000008554 8560_ $$f581195@celes.unizar.es 000008554 8564_ $$s5535488$$uhttps://zaguan.unizar.es/record/8554/files/TAZ-PFC-2012-426.pdf$$yMemoria (eng)$$zMemoria (eng) 000008554 909CO $$ooai:zaguan.unizar.es:8554$$pdriver$$pproyectos-fin-carrera 000008554 950__ $$a 000008554 980__ $$aTAZ$$bPFC$$cEINA