A consideration of interference and reflection on visible-light communication system using white LED lights

摘要

White LED offers advantageous properties such as high brightness, reliability, lower power consumption and long lifetime. White LEDs are expected to serve in the next generation of lamps. An indoor visible data transmission system utilizing white LED lights has been proposed from our laboratory. In the proposed system, these devices are used not only for illuminating rooms but also for an optical wireless communication system. Generally, plural lights are installed in our room. So, their optical path difference must be considered. In this paper, we discuss the influence of interference and reflection. Based on numerical analyses and computer simulations, we show that the system will expect as indoor communication of next generation.