White Light Wireless Transmission at 200${+}$ Mb/s Net Data Rate by Use of Discrete-Multitone Modulation

Abstract

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> Spectrally efficient data transmission with white light-emitting diodes (LEDs) is a topic of increasing interest. In this letter, we report a visible light communication link operating at 200<formula formulatype="inline"><tex Notation="TeX">${+}$</tex></formula> Mb/s net transmission rate (230<formula formulatype="inline"><tex Notation="TeX">${+}$</tex></formula> Mb/s gross) with a bit-error ratio for uncoded data below <formula formulatype="inline"> <tex Notation="TeX">${10^{-3}}$</tex></formula>. The link is based on a thin-film high-power phosphorescent white LED and offline signal processing of discrete multitone signals. Transmission at the brightness levels of about 1100 and 550 lx was investigated. Our results indicate that the achievable data rates are limited by detector noise.<?Pub _bookmark="" Command="[Quick Mark]"?> </para>