Title :
A Visible Light Communication System Demonstration Based on 16-Level Pulse Amplitude Modulation of an LED Array
Author :
Xi, Chenguang ; Mirvakili, Ali ; Koomson, Valencia Joyner
Author_Institution :
Dept. of Electr. Eng., Tufts Univ., Medford, MA, USA
Abstract :
Visible light communication (VLC) technology enabling data transmission by modulating solid-state light-emitting diode (LED) devices has attracted much attention recently. However, the transmission rate of VLC remains low due to the low bandwidth performance of LEDs. We present a VLC transmitter consisting of an LED array to enable implementation of a 16-level pulse amplitude modulation scheme, which theoretically increases the transmission rate from 10Mbps to 40Mbps. In addition, the LED array provides sufficient brightness for illumination of office-sized locations. This paper reports an experimental demonstration of a video transmission system based on VLC using a 4x4 LED array.
Keywords :
brightness; light emitting diodes; optical arrays; optical modulation; optical transmitters; pulse amplitude modulation; 16-level pulse amplitude modulation; LED array; VLC technology; VLC transmitter; bandwidth performance; bit rate 10 Mbit/s to 40 Mbit/s; brightness; data transmission; illumination; office-sized locations; solid-state light-emitting diode; video transmission system; visible light communication system; Amplitude modulation; Arrays; Field programmable gate arrays; Light emitting diodes; Receivers; Streaming media;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2012 Symposium on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4577-0909-8
DOI :
10.1109/SOPO.2012.6271071
