Performance Analysis of Space-Diversity Free-Space Optical Links Over Exponentiated Weibull Channels

Author

Shuai Jiang ; Guowei Yang ; Yizhen Wei ; Meihua Bi ; Yang Lu ; Xuefang Zhou ; Miao Hu ; Qiliang Li

Author_Institution

Coll. of Commun. Eng., Hangzhou Dianzi Univ., Hangzhou, China

Volume

27

Issue

21

fYear

2015

Firstpage

2250

Lastpage

2252

Abstract

We propose a simple analytical method for evaluating the average bit-error rate (BER) performance of multiple input multiple output (MIMO) free-space optical (FSO) communication systems over independent exponentiated Weibull (EW) channels. We first present an accurate approximation to the probability density function (PDF) of the sum of independent EW random variables corresponding to the EW-distributed FSO channel fading. Then, a closed-form expression for the BER of MIMO FSO systems using ON-OFF keying is derived based on the obtained PDF. The proposed method is validated through comparing the BER results obtained by the analytical calculation and the Monte Carlo simulation.

Keywords

MIMO communication; Weibull distribution; amplitude shift keying; error statistics; fading channels; optical links; BER; MIMO FSO systems; ON-OFF keying; bit-error rate performance; exponentiated Weibull channels; exponentiated Weibull-distributed FSO channel fading; multiple input multiple output free-space optical communication systems; performance analysis; probability density function; space-diversity free-space optical links; Adaptive optics; Apertures; Approximation methods; Bit error rate; Fading; MIMO; Probability density function; Free-space optics; Pad?? approximation; Pade approximation; average bit error rate; exponentiated Weibull distribution; free-space optics; multiple-input multiple-output; multiple-input multipleoutput;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2015.2458321

Filename

7163306