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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), 293-304 . IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1364/JOCN.2.000293. ISSN 1943-0620 .

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Official URL: http://www.opticsinfobase.org/JOCN/abstract.cfm?URI=JOCN-2-5-293


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.

Item URL in elib:https://elib.dlr.de/64725/
Document Type:Article
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
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:3 May 2010
Journal or Publication Title:Journal of Optical Communications and Networking
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:293-304
EditorsEmailEditor's ORCID iDORCID Put Code
Bergman, KerenColumbia UniversityUNSPECIFIEDUNSPECIFIED
Chan, VincentMassachusetts Institute of TechnologyUNSPECIFIEDUNSPECIFIED
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:Channel model, Fading, Free-space optical communications, Measurements, Mitigation, Protocol design, optical wireless
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignment
DLR - Research area:Space
DLR - Program:W - no assignment
DLR - Research theme (Project):W - no assignment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Digital Networks
Deposited By: Epple, Bernhard
Deposited On:15 Oct 2010 08:45
Last Modified:06 Sep 2019 15:20

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