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Proceedings Paper

Probability of fade and BER performance of FSO links over the exponentiated Weibull fading channel under aperture averaging
Author(s): Ricardo Barrios; Federico Dios
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Paper Abstract

Recently a new proposal to model the fading channel in free-space optical links, namely, the exponentiated Weibull (EW) distribution, has been made. It has been suggested that the EW distribution can model the probability density function (PDF) of the irradiance under weak-to-strong conditions in the presence of aperture averaging. Here, we carry out an analysis of probability of fade and bit error-rate (BER) performance using simulation results and experimental data. The BER analysis assumes intensity modulation/direct detection with on-off keying, and new expressions are derived. Data is modeled following the statistics of the EW fading channel model, and compared with the Gamma-Gamma and Lognormal distributions, as the most widely accepted models nowadays. It is shown how the proposed EW model is valid in all the tested conditions, and even outperforms the GG and LN distributions, that are only valid under certain scenarios.

Paper Details

Date Published: 19 October 2012
PDF: 9 pages
Proc. SPIE 8540, Unmanned/Unattended Sensors and Sensor Networks IX, 85400D (19 October 2012); doi: 10.1117/12.974646
Show Author Affiliations
Ricardo Barrios, Univ. Politècnica de Catalunya (Spain)
Federico Dios, Univ. Politècnica de Catalunya (Spain)

Published in SPIE Proceedings Vol. 8540:
Unmanned/Unattended Sensors and Sensor Networks IX
Edward M. Carapezza; Henry J. White, Editor(s)

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