Title :
Outage performance of MIMO free-space optical systems in gamma-gamma fading channels
Author :
Kazemi, Hamed ; Mostaani, Zohreh ; Uysal, Mustafa ; Ghassemlooy, Zabih
Author_Institution :
Dept. of Electr. & Electron. Eng., Ozyegin Univ., Istanbul, Turkey
Abstract :
In this paper, we consider a MIMO Free-Space Optical (FSO) communication system over gamma-gamma turbulence channels and derive a closed-form analytical expression for the outage probability taking into account the effects of both the inner scale size of optical channel and the aperture averaging. Our results demonstrate that by increasing the number of transmit and/or receive apertures, the degrading effect of the inner scale size is effectively reduced by extracting the spatial diversity gain of the MIMO scheme. We further provide Monte Carlo simulation results to confirm the validity of the derived expression.
Keywords :
MIMO communication; Monte Carlo methods; fading channels; optical communication; optical receivers; optical transmitters; probability; radio receivers; radio transmitters; FSO; MIMO free-space optical communication system; Monte Carlo simulation; closed-form analytical expression; gamma-gamma fading channel; gamma-gamma turbulence channel; optical channel inner scale size; outage probability; receiving aperture; spatial diversity gain; transmitting aperture; Apertures; Atmospheric modeling; Fading; MIMO; Optical fiber communication; Optical transmitters; Receivers; Free-space optical communication; atmospheric turbulence channel; equal gain combining; gamma-gamma fading; multiple-input multiple-output transmission;
Conference_Titel :
Network and Optical Communications (NOC), 2013 18th European Conference on and Optical Cabling and Infrastructure (OC&i), 2013 8th Conference on
Conference_Location :
Graz
Print_ISBN :
978-1-4673-5821-7
DOI :
10.1109/NOC-OCI.2013.6582899
