Performance analysis of free-space optical communication systems over atmospheric turbulence channels

H.E. Nistazakis; T.A. Tsiftsis; G.S. Tombras

Performance analysis of free-space optical communication systems over atmospheric turbulence channels

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Performance analysis of free-space optical communication systems over atmospheric turbulence channels

Author(s): H.E. Nistazakis ; T.A. Tsiftsis ; G.S. Tombras
DOI: 10.1049/iet-com.2008.0212

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Author(s): H.E. Nistazakis ¹ ; T.A. Tsiftsis ² ; G.S. Tombras ¹
- Affiliations: 1: Department of Electronics, Computers, Telecommunications and Control, Faculty of Physics, University of Athens, Athens, Greece
  2: Department of Informatics with Applications in Biomedicine, University of Central Greece, Lamia, Greece
Source: Volume 3, Issue 8, August 2009, p. 1402 – 1409
DOI: 10.1049/iet-com.2008.0212 , Print ISSN 1751-8628, Online ISSN 1751-8636

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Turbulence fading is one of the main impairments affecting the operation of free-space optical (FSO) communication systems. The authors study the performance of FSO communication systems, also known as wireless optical communication systems, over log-normal and gamma–gamma atmospheric turbulence-induced fading channels. These fading models describe the atmospheric turbulence because of its very good agreement with experimental measurement data. Closed-form expressions for the average (ergodic) capacity and the outage probability are derived for both statistical models. Another contribution of this work is a study of how the performance metrics are affected by the atmospheric conditions and other parameters such as the length of the link and the receiver's aperture diameter. The derived analytical expressions are verified by various numerical examples and can be used as an alternative to time-consuming Monte-Carlo simulations.

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Performance analysis of free-space optical communication systems over atmospheric turbulence channels

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