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KOLKA, Z. KVÍČALA, R. BIOLKOVÁ, V.
Original Title
Transmission Properties of Free-Space Optical Links
Type
conference paper
Language
English
Original Abstract
The proposed paper deals with characterization of bit-error rate of free-space optical (FSO) links. The majority of commercially available links uses simple on-off keying for data transmission and is based on components developed for fiber applications. But the atmospheric optical channel differs significantly from optical fiber. Received optical power fluctuates due to atmospheric turbulences. The "period" of fluctuations is in the order of milliseconds. The fluctuations cause short-term interruptions of data stream that interfere with communication protocols. For example, the interruptions decrease the congestion window of the TCP protocol. The actual data throughput is then a fraction of physical capacity of the link. A proper characterization of the channel is a key factor for the development of new communication protocols compatible with FSO.
Keywords
Free Space Optics, Digital links, BER testing
Authors
KOLKA, Z.; KVÍČALA, R.; BIOLKOVÁ, V.
RIV year
2007
Released
3. 10. 2007
Publisher
AFCEA
Location
Tatranské Zruby, Slovakia
ISBN
978-80-8040-325-6
Book
Proceedings of the 4th Scientific Conference with International Participation Communications and Information Information Technologies KIT 2007
Pages from
64
Pages to
68
Pages count
5
BibTex
@inproceedings{BUT23235, author="Zdeněk {Kolka} and Radek {Kvíčala} and Viera {Biolková}", title="Transmission Properties of Free-Space Optical Links", booktitle="Proceedings of the 4th Scientific Conference with International Participation Communications and Information Information Technologies KIT 2007", year="2007", pages="5", publisher="AFCEA", address="Tatranské Zruby, Slovakia", isbn="978-80-8040-325-6" }