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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), . Institute of Electrical and Electronics Engineers and Optical Society of America. DOI: 10.1364/JOCN.2.000293. ISSN 1943-0620 .

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

Kurzfassung

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.

Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen:Also available from IEEE Xplore: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5457931
Titel:Simplified Channel Model for Simulation of Free-Space Optical Communications
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Epple, Bernhardbernhard.epple@dlr.de
Datum:3 Mai 2010
Erschienen in:Journal of Optical Communications and Networking
Referierte Publikation:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:2
DOI :10.1364/JOCN.2.000293
Seitenbereich:
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der Herausgeber
Bergman, KerenColumbia University
Chan, VincentMassachusetts Institute of Technology
Verlag:Institute of Electrical and Electronics Engineers and Optical Society of America
ISSN:1943-0620
Status:veröffentlicht
Stichwörter:Channel model, Fading, Free-space optical communications, Measurements, Mitigation, Protocol design, optical wireless
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W - keine Zuordnung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W - keine Zuordnung
DLR - Teilgebiet (Projekt, Vorhaben):W -- keine Zuordnung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Kommunikation und Navigation > Digitale Netze
Hinterlegt von: Bernhard Epple
Hinterlegt am:15 Okt 2010 08:45
Letzte Änderung:26 Feb 2013 15:05

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