Performance evaluation of optical OFDM systems with nonlinear clipping distortion

Authors:
Liang Chen;Brian Krongold;Jamie Evans
Affiliations:
National ICT Australia, Victoria Research Laboratory, Department of Electrical and Electronic Engineering, School of Engineering, University of Melbourne, Parkville, Victoria, Australia;National ICT Australia, Victoria Research Laboratory, Department of Electrical and Electronic Engineering, School of Engineering, University of Melbourne, Parkville, Victoria, Australia;National ICT Australia, Victoria Research Laboratory, Department of Electrical and Electronic Engineering, School of Engineering, University of Melbourne, Parkville, Victoria, Australia
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

Citing 2
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Abstract

This paper investigates the effects of nonlinear biasing and clipping (BAC) on a random optical Orthogonal Frequency-Division Multiplexing (OFDM) signal with direct detection. We look at the problem of theoretical performance evaluation of such a system. Specifically, we derive an approximation for the Symbol Error Rate (SER). The nonlinear BAC process is modeled as a linear deterministic gain plus a random additive clipping noise. The total effective SNR is presented as a function of biasing power, modulation constellation and receiver SNR. Analytical results are in good agreement with simulations in various cases.