Title :
BER analysis of MIMO/FSO systems using rectangular QAM over gamma-gamma channels
Author :
Vu, Bach T. ; Thang, Truong C. ; Pham, Anh T.
Author_Institution :
Comput. Commun. Lab., Univ. of Aizu, Aizu-Wakamatsu, Japan
Abstract :
In this paper, we theoretically analyze the performance of multiple-input multiple-output free-space optical (MIMO/FSO) communication systems employing rectangular quadrature-amplitude modulation (QAM) scheme. The gamma-gamma distribution is used to model the atmospheric turbulence channels and the equal-gain combining (EGC) receiver is employed. We analytically derive the closed-form expression of BER in term of average signal-to-noise ratio per bit. The numerical results quantitatively discuss the improvement of MIMO systems compared to the one using single-input single-output (SISO) scheme.
Keywords :
MIMO communication; atmospheric turbulence; error statistics; optical communication; quadrature amplitude modulation; BER; MIMO systems; MIMO/FSO systems; QAM; atmospheric turbulence channels; closed-form expression; equal-gain combining receiver; gamma-gamma channels; gamma-gamma distribution; multiple-input multiple-output free-space optical communication systems; rectangular quadrature-amplitude modulation scheme; signal-to-noise ratio; single-input single-output scheme; MIMO; Optical modulation; Quadrature amplitude modulation; Zirconium; Free-space optics (FSO); gamma-gamma turbulence channel; multiple-input multiple-output (MIMO); quadrature-amplitude modulation (QAM);
Conference_Titel :
Ubiquitous and Future Networks (ICUFN), 2013 Fifth International Conference on
Conference_Location :
Da Nang
DOI :
10.1109/ICUFN.2013.6614844
