Abstract
Radio-on-free space optical (RoFSO) communication systems are gaining
popularity because of their ability to transmit simultaneously multiple radio
frequency signals comprised of various wireless services over FSO links using
wavelength division multiplexing technology. We propose a new approach of
use of the RoFSO technology for high-speed indoor communication systems and
introduce an analytical model for the transmission of orthogonal frequency-division
multiplexing-based signals over a line-of-sight link with diverged Gaussian
beam. We have analyzed the laser safety restrictions for the proposed system
and derived a closed-form bit-error probability, taking into account the ambient
noise and laser diode nonlinear distortion. Simulation results are shown and
the system performance is discussed.
© 2012 IEEE
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