Title :
Novel Semi-Analytical Method for BER Evaluation in Simulated Optical DQPSK Systems
Author :
Costa, Nelson M S ; Cartaxo, Adolfo V T
Author_Institution :
Dept. of Electr. & Comput. Eng., Inst. Super. Tecnico, Lisbon
fDate :
4/1/2009 12:00:00 AM
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.
Keywords :
differential phase shift keying; error statistics; optical fibre networks; quadrature phase shift keying; BER evaluation; EDP; bit-error-ratio; differential quadrature phase-shift keying systems; equivalent differential phase; optical DQPSK system; optical signal-to-noise ratio; semianalytical method; ultralong-haul network; Bit error rate; Computational modeling; Gaussian distribution; Optical filters; Optical interferometry; Optical polarization; Optical receivers; Phase shift keying; Statistical distributions; System performance; Differential quadrature phase-shift keying (DQPSK); equivalent differential phase (EDP); semi-analytical method;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2012871
