Title :
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
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2458321
