Abstract:
Free Space Optical (FSO) channels with Multiple-Input Multiple-Output (MIMO) hops and
serial relaying are studied under the e ects of Gamma-Gamma modeled atmospheric turbulence
alone, and under the combined e ects of atmospheric turbulence, path loss and pointing er-
rors. Asymptotic approximations and diversity orders are derived for both cases, and show the
importance of proper aperture allocation for improving channels' performance. A recursive al-
gorithm is proposed for optimally allocating apertures among hops for a serially-relayed MIMO
FSO channel.
