Authors:
Gilbert Johannes Martin Forkel
and
Peter Adam Hoeher
Affiliation:
Christian-Albrechts-Universität zu Kiel, Germany
Keyword(s):
Superposition, Light-emitting Diodes, Lighting, High-order Modulation, Visible Light Communication, Modulation, Error Statistics, Optical Communication, Diversity.
Related
Ontology
Subjects/Areas/Topics:
Optical Communication Systems
;
Optical Modulation and Signal Processing
;
Telecommunications
Abstract:
Visible light communication (VLC) is a promising alternative to radio waves, when high data rates are required
over short distances. Using lighting equipment for communication offers very high receive power values
without consuming additional energy than already required for illuminating the environment. The bandwidth
restriction of the employed light-emitting diode (LED) light sources is one limiting factor to exploiting the
channels potential capacity. In this paper, we propose spatially distributed modulation schemes to increase
the data rate by switching the LEDs of the lighting equipment individually. Towards this goal, three different
techniques for superposition of independent light sources are compared.