Probability of fade and BER performance of FSO links over the exponentiated Weibull fading channel under aperture averaging

Ricardo Barrios; Federico Dios

doi:10.1117/12.974646

19 October 2012 Probability of fade and BER performance of FSO links over the exponentiated Weibull fading channel under aperture averaging

Ricardo Barrios, Federico Dios

Author Affiliations +

Proceedings Volume 8540, Unmanned/Unattended Sensors and Sensor Networks IX; 85400D (2012) https://doi.org/10.1117/12.974646
Event: SPIE Security + Defence, 2012, Edinburgh, United Kingdom

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.

Citation Download Citation

Ricardo Barrios and Federico Dios "Probability of fade and BER performance of FSO links over the exponentiated Weibull fading channel under aperture averaging", Proc. SPIE 8540, Unmanned/Unattended Sensors and Sensor Networks IX, 85400D (19 October 2012); https://doi.org/10.1117/12.974646

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