  Visible Light Communications (VLC) is a new paradigm in wireless
communications. The characteristics of this technology, which uses
light-emitting diode-based lighting devices as transmitting elements, make it
possible to be considered a complement to current wireless radio communication
systems.
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  Les comunicacions per llum visible o 'Visible Light Communications' (VLC)
s\'on un nou paradigma en comunicacions sense fils. Les caracter\'istiques que
presenta aquesta tecnologia, que utilitza els dispositius
d'il{\lgem{}}luminaci\'o basats en d\'iodes emissors de llum com elements
transmissors, fa que es pugui considerar un complement dels actuals sistemes de
comunicaci\'o inal`ambrics.
