Computationally efficient methods for bit-error rate evaluation in weakly coherent optical systems

Author

Ribeiro, Rui F S ; Rocha, José R Ferreira da

Author_Institution

Dept. de Electron. e Telecoms, Aveiro Univ., Portugal

Volume

12

Issue

10

fYear

1994

fDate

10/1/1994 12:00:00 AM

Firstpage

1842

Lastpage

1848

Abstract

A semianalytical method to estimate the bit-error rate performance of nonsynchronous ASK and FSK optical heterodyne systems is presented. This approach takes into account numerous system details with an accuracy similar to Monte-Carlo simulation, but with a computation time reduced by several orders of magnitude. An analytical approximation, based on a closed-form expression for the decision variable moment generating function, is also presented. The results obtained with the semianalytical method and the analytical approximation are compared to Monte-Carlo simulation results and to measurements obtained on a practical FSK system

Keywords

amplitude shift keying; approximation theory; demodulation; frequency shift keying; light coherence; optical links; optical modulation; FSK optical heterodyne systems; analytical approximation; bit-error rate evaluation; bit-error rate performance; closed-form expression; computation time; computationally efficient methods; decision variable moment generating function; nonsynchronous ASK optical heterodyne systems; practical FSK system; semianalytical method; weakly coherent optical systems; Bit error rate; Frequency shift keying; Gaussian distribution; Laser modes; Laser noise; Optical computing; Optical filters; Optical mixing; Optical sensors; Phase noise;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.337498

Filename

337498