Title :
Pulse width modulation based signal format for visible light communications
Author :
Choi, Joon-Ho ; Cho, Eun-Byeol ; Kang, Tae-Gyu ; Lee, Chung Ghiu
Author_Institution :
Dept. of Electron. Eng., Chosun Univ., Gwangju, South Korea
Abstract :
A pulse-width modulation (PWM) based modulation format is proposed for visible light communication (VLC) system using illumination light-emitting diodes (LEDs). A pulse-position modulation (PPM) data signal is employed over PWM dimming (brightness) control signal. The PPM data pulses are recovered from the received optical signal over a distance of 20 cm.
Keywords :
light emitting diodes; optical communication; optical modulation; pulse width modulation; PWM dimming control signal; illumination light-emitting diodes; modulation format; pulse width modulation; pulse-position modulation data signal; signal format; visible light communications; Data communication; Light emitting diodes; Lighting; Optical receivers; Optical transmitters; Pulse width modulation;
Conference_Titel :
OptoElectronics and Communications Conference (OECC), 2010 15th
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-6785-3
