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http://dx.doi.org/10.5302/J.ICROS.2015.14.0113

Implementation of Variable Pulse Position Modulation Using a Cortex-M Processor for Visible Light Communication  

Kim, Jun-Young (Department of Electronic Engineering, Pukyong National University)
Kim, Ji-Su (Department of Electronic Engineering, Pukyong National University)
Park, Sang-Hong (Department of Electronic Engineering, Pukyong National University)
Lee, Won-Chang (Department of Electronic Engineering, Pukyong National University)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.21, no.1, 2015 , pp. 76-79 More about this Journal
Abstract
Visible light communication (VLC) is a short range optical communication technology using light emitting diodes. In this paper, we implement variable pulse position modulation (VPPM) defined in the IEEE 802.15.7 standard with a Cortex-M processor, which is a new modulation scheme for VLC providing a dimming control mechanism for flicker-free optical communication. The synchronization procedure between the transmitter and receiver is not defined clearly in the VPPM standard. In order to synchronize the transmitter and receiver easily, two overhead bits are used including one start bit and one stop bit modulated by on-off keying (OOK). Experimental results under various environmental conditions show that the proposed VPPM can support a seamless 100 Kbps data rate with 10 levels in the dimming control.
Keywords
visible light communication; variable pulse position modulation; Cortex-M; dimming control; on-off keying;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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