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Novel semi-analytical method for BER evaluation in simulated optical DQPSK systems

Costa, N. ; Cartaxo, A.

IEEE Photonics Technology Letters Vol. 21, Nº 7, pp. 447 - 449, April, 2009.

ISSN (print): 1041-1135
ISSN (online): 1041-1135

Journal Impact Factor: 2,110 (in 2014)

Digital Object Identifier: 10.1109/LPT.2009.2012871

Abstract
A novel semi-analytical method for optical differential quadrature phase-shift keying systems performance evaluation based on the equivalent differential phase (EDP) is proposed. The proposed method is computationally much faster than Monte-Carlo (MC) simulation and methods based on the combination of MC simulation with the EDP. Discrepancies not exceeding 0.2 dB on the required optical signal-to-noise ratio are obtained between MC simulation and the proposed method.