Abstract
In order to increase the data rate of the camera-based visible light communication (VLC) system, using rolling shutter effect has been demonstrated successfully, in which the pixel rows of the complementary-metal-oxide-semiconductor (CMOS) image sensor are activated sequentially. Previous camera-based VLCs focused on using a stable LED light source, and its illumination area is positioned at the center of an image frame. In this work, we investigate the performance of a camera-based VLC with light source at different parts of an image frame. We propose and demonstrate using region-grow algorithm to track the light source. We also evaluate and discuss different scenarios when the light source is moved. Besides, a recorded > 5 kbit/s net data rate can be achieved by using only a single phosphor-based white-light LED source. Here, we demonstrate that 4.502 pixel/bit can be achieved.
Highlights
Visible light communication (VLC) has attracted much attention
Previous camera-based visible light communication (VLC) focused on using a stable LED light source, and its illumination area is positioned at the center of an image frame
We investigate the performance of a camera-based VLC with light source at different parts of an image frame
Summary
Visible light communication (VLC) has attracted much attention. It is considered as a possible way to offer high speed and secure wireless communication for the future 5th generation (5G) wireless communications [1]. VLC can be transmitted via the lighting systems; little extra cost is needed for the deployment It is very directional and the communication zone is confined in the illumination area; it is secure and can provide high wireless communication density since the interference among neighbor communication zones is small. In order to increase the data rate, using the rolling shutter effect has been reported [9], in which the pixel rows of the CMOS image sensor are activated sequentially. By demodulating this rolling shutter pattern, ~1 kbit/s data rate can be achieved [10]. A recorded 5760 bit/s net data rate is achieved
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
