Average Capacity of Optical Wireless Communication Systems Over Atmospheric Turbulence Channels

Author

Nistazakis, Hector E. ; Karagianni, Evangelia A. ; Tsigopoulos, Andreas D. ; Fafalios, Michael E. ; Tombras, George S.

Author_Institution

Dept. of Electron., Comput., Telecommun., & Control, Univ. of Athens, Athens

Volume

27

Issue

8

fYear

2009

fDate

4/15/2009 12:00:00 AM

Firstpage

974

Lastpage

979

Abstract

The optical wireless communication systems are rapidly gaining popularity as effective means of transferring data at high rates over short distances. These systems facilitate rapidly deployable, lightweight, high-capacity communication without licensing fees and tariffs. On the other hand, the performance of this new technology depends strongly on the atmospheric conditions and the parameters of the link such as the length and the operation wavelength. In this work, we extract closed form mathematical expression for the evaluation of the average (ergodic) capacity of such a system, using the log-normal and gamma-gamma distribution, in order to model the atmospheric turbulence conditions and we study the influence of the above parameters on it.

Keywords

atmospheric optics; atmospheric turbulence; channel capacity; gamma distribution; log normal distribution; optical communication; atmospheric conditions; atmospheric turbulence channels; average capacity; closed form mathematical expression; gamma-gamma distribution; log-normal distribution; operation wavelength; optical wireless communication systems; AWGN; Atmospheric modeling; Atmospheric waves; Channel capacity; Fluctuations; Optical fiber communication; Optical modulation; Optical receivers; Optical transmitters; Wireless communication; Channel capacity; Gamma–Gamma distribution; log-normal distribution; optical wireless communications;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2008.2005039

Filename

4814735