Abstract
This paper presents a complete analytical framework for modeling memoryless nonlinear effects in an
intensity modulation and direct detection optical wireless communication system based on orthogonal frequency division
multiplexing. The theory employs the Bussgang theorem, which is widely accepted as a means to characterize the impact
of nonlinear distortions on normally distributed signals. This paper proposes a new method to generalize this
approach, and it describes how a closed-form analytical expression for the system bit error rate can be obtained for
an arbitrary memoryless distortion. Major distortion effects at the transmitter stage such as quantization and
nonlinearity from the light emitting diode are analyzed. Four known orthogonal-frequency-division-multiplexing-based
modulation schemes for optical communication are considered in this paper: direct-current-biased optical OFDM,
asymmetrically clipped optical OFDM, pulse-amplitude-modulated discrete multitone modulation, and unipolar orthogonal
frequency division multiplexing.
© 2013 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription