Abstract — 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-light
communication 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 about
the influence of interference and reflection. Based on
numerical analyses, we show that the system will expect as
indoor communication of next generation1.