Simplified Channel Model for Simulation of Free-Space Optical Communications
Epple, Bernhard (2010) Simplified Channel Model for Simulation of Free-Space Optical Communications. Journal of Optical Communications and Networking, 2 (5), . Institute of Electrical and Electronics Engineers and Optical Society of America. DOI: 10.1364/JOCN.2.000293. ISSN 1943-0620 .
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Free-space optical (or optical wireless) communications represent an attractive technology for the realization of high-bandwidth wireless communications. However, for propagation through the atmosphere the characteristics of the optical signal are different from those of the signals from, e.g., fiber channels or radio-frequency wireless channels, and therefore the error characteristics on these links are also different. For evaluating fading mitigation techniques for optical wireless communications a channel model is needed that can be easily used by protocol designers. Existing channel models for optical wireless communications are based on atmospheric propagation theory and therefore require a deep physical understanding of the optical propagation through the atmosphere. The goal of this publication is to develop a simplified approach for modeling the received power dynamics of the atmospheric free-space optical channel. The proposed model consists of a random number generator and a low-pass filter and is therefore easy to implement and use. This approach is only valid for systems utilizing intensity modulation with direct detection, but this limitation is acceptable since most commercially available systems use this modulation format. The channel model is developed based on the statistics of received power measurements from a maritime-mobile link, a land-mobile link, and a satellite downlink.
|Additional Information:||Also available from IEEE Xplore: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5457931|
|Title:||Simplified Channel Model for Simulation of Free-Space Optical Communications|
|Date:||03 May 2010|
|Journal or Publication Title:||Journal of Optical Communications and Networking|
|In ISI Web of Science:||Yes|
|Publisher:||Institute of Electrical and Electronics Engineers and Optical Society of America|
|Keywords:||Channel model, Fading, Free-space optical communications, Measurements, Mitigation, Protocol design, optical wireless|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W - no assignement|
|DLR - Research area:||Space|
|DLR - Program:||W - no assignement|
|DLR - Research theme (Project):||W -- no assignement (old)|
|Institutes and Institutions:||Institute of Communication and Navigation > Digital Networks|
|Deposited By:||Bernhard Epple|
|Deposited On:||15 Oct 2010 08:45|
|Last Modified:||26 Feb 2013 15:05|
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