The main driver behind high-speed VLC is
the rapidly growing presence of LEDs in practically
every signaling or illumination entity. By as
early as 2018, the majority of new energy-efficient
lighting installations are expected to be
LED-based [4]. As current-driven semiconductor
diodes, LEDs provide a respectable modulation
potential. This aspect increases the attractiveness
of VLC and offers benefits such as:
• Huge bandwidth in the visible part of the
“optical” electro-magnetic spectrum
• Absence of electro-magnetic interference
(EMI) with existing radio systems
• The intuitive option to create and isolate
communication cells with very high privacy
by either directing the light to the working
area or using any opaque material