Author
Gökçe, M. C., Baykal, Y., Uysal, Murat
Publication Date
2016-06
Publication Place
-
The Optical Society
Subject
Atmospheric-turbulence, Gaussian-beam, Spatial correlation, Receiver-aperture, Wireless links, Scintillations, Communication, Diversity, Waves, Transmitters
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1520-8532
Record ID
d9871f09-e538-4cff-b366-bfb9e44d8207
Library Location
Electrical & Electronics Engineering
Date
2016-06
Notes
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Sample Text
Multiple-input single-output (MISO) techniques are employed in free-space optical (FSO) links to mitigate the degrading effects of atmospheric turbulence. In this paper, for the MISO FSO system, a partially coherent radial array and a finite-sized receiver aperture are used at the transmitter and the receiver, respectively. Using the extended Huygens–Fresnel principle, we formulate the average power and the power correlation at the finite-sized slow detector in weak atmospheric turbulence. System performance indicators such as the power scintillation index and the aperture averaging factor are determined. Effects of the source size, ring radius, receiver aperture radius, link distance, and structure constant and the degree of source coherence are analyzed on the performance of the MISO FSO system. In the limiting cases, the numerical results are found to be the same when compared to the existing coherent and partially coherent Gaussian beam scintillation indices.
DOI
10.1364/JOSAA.33.001041
Cilt
33
