TY - GEN
T1 - Experimental evaluation of transmitter and receiver diversity in a terrestrial FSO link
AU - Anguita, Jaime A.
AU - Cisternas, Jaime E.
N1 - ©2010 IEEE.
PY - 2010
Y1 - 2010
N2 - We experimentally measure and characterize the channel fluctuations in a terrestrial laser communication link using spatial diversity. We measure the signals arising from the propagation of laser beams in a system that comprises two transmit and two receive apertures under various design settings. We find that the spatial channels are statistically correlated. This spatial correlation increases with receiver aperture size and with increasing proximity between beams and/or receiver apertures. By quantifying the cross-covariance between pairs of simultaneously recorded time functions, we map the spatial channel correlation of the optical wireless link as a function of beam separation at the transmitter, receiver aperture, and receiver optics separation. We discuss the effects of transverse wind velocity and establish criteria for the design of effective multiple-input multiple-output free-space optical links affected by atmospheric turbulence.
AB - We experimentally measure and characterize the channel fluctuations in a terrestrial laser communication link using spatial diversity. We measure the signals arising from the propagation of laser beams in a system that comprises two transmit and two receive apertures under various design settings. We find that the spatial channels are statistically correlated. This spatial correlation increases with receiver aperture size and with increasing proximity between beams and/or receiver apertures. By quantifying the cross-covariance between pairs of simultaneously recorded time functions, we map the spatial channel correlation of the optical wireless link as a function of beam separation at the transmitter, receiver aperture, and receiver optics separation. We discuss the effects of transverse wind velocity and establish criteria for the design of effective multiple-input multiple-output free-space optical links affected by atmospheric turbulence.
KW - Atmospheric turbulence
KW - Channel characterization
KW - Free-space optical communication
KW - Laser applications
KW - Multiple-input multiple-output
KW - Optical communication
KW - Receiver diversity
KW - Spatial correlation
KW - Transmitter diversity
KW - Atmospheric turbulence
KW - Channel characterization
KW - Free-space optical communication
KW - Laser applications
KW - Multiple-input multiple-output
KW - Optical communication
KW - Receiver diversity
KW - Spatial correlation;
KW - Transmitter diversity
UR - http://www.scopus.com/inward/record.url?scp=79951940705&partnerID=8YFLogxK
U2 - 10.1109/GLOCOMW.2010.5700085
DO - 10.1109/GLOCOMW.2010.5700085
M3 - Conference contribution
AN - SCOPUS:79951940705
SN - 9781424488650
T3 - 2010 IEEE Globecom Workshops, GC'10
SP - 1005
EP - 1009
BT - 2010 IEEE Globecom Workshops, GC'10
PB - IEEE Computer Society
T2 - 2010 IEEE Globecom Workshops, GC 2010
Y2 - 5 December 2010 through 10 December 2010
ER -