On the Optimality of the Selection Transmit Diversity for MIMO-FSO Links with Feedback

Author

Abou-Rjeily, Chadi

Author_Institution

Dept. of Electr. & Comput. Eng., Lebanese American Univ. (LAU), Byblos, Lebanon

Volume

15

Issue

6

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

641

Lastpage

643

Abstract

We propose an optimal power allocation strategy for Multiple-Input-Multiple-Output (MIMO) Free-Space Optical (FSO) links with Intensity Modulation (IM) and Direct Detection (DD). The optimization is performed for shot noise limited systems in the presence of complete feedback. The derived analytical solution turns out to be the same as the selection transmit diversity scheme proposed for MISO-FSO systems corrupted by Gaussian noise. We also propose and analyze a novel transmission strategy for the limited-feedback case.

Keywords

Gaussian noise; MIMO communication; channel allocation; diversity reception; feedback; intensity modulation; optical links; optimisation; shot noise; FSO links; Gaussian noise; MIMO; direct detection; free space optical links; intensity modulation; limited feedback; multiple input multiple output; optimal power allocation; optimization; shot noise limited systems; transmit diversity; AWGN; Adaptive optics; Fading; MIMO; Optical feedback; Optical transmitters; Free-space optics; atmospheric turbulence; power allocation; transmit diversity;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2011.041411.110312

Filename

5755147