Title :
BER Performance of FSO Links over Strong Atmospheric Turbulence Channels with Pointing Errors
Author :
Sandalidis, Harilaos G. ; Tsiftsis, Theodoros A. ; Karagiannidis, George K. ; Uysal, Murat
Author_Institution :
Univ. of Central Greece, Lamia
fDate :
1/1/2008 12:00:00 AM
Abstract :
In this letter, we investigate the error rate performance of free-space optical (FSO) links over strong turbulence fading channels together with misalignment (pointing error) effects. First, we present a novel closed-form expression for the distribution of a stochastic FSO channel model which takes into account both atmospheric turbulence-induced fading and misalignment-induced fading. Then, we evaluate the average bit-error rate in closed form of a FSO system operating in this channel environment, assuming intensity modulation/direct detection with on-off keying. Numerical examples are further provided to collaborate on the derived analytical expressions.
Keywords :
atmospheric turbulence; error statistics; fading channels; optical links; statistical distributions; stochastic processes; BER performance; FSO channel model; atmospheric turbulence fading channels; bit-error rate; free-space optical links; misalignment fading; pointing error effect; stochastic distribution; AWGN; Atmospheric modeling; Biomedical optical imaging; Bit error rate; Fading; Optical modulation; Optical receivers; Optical refraction; Optical transmitters; Optical variables control;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2008.071408
