Title :
Mobil FSO Activities in Europe and Fading Mitigation Approaches
Author :
Henniger, Hennes ; Epple, Bernhard ; Giggenbach, Dirk
Author_Institution :
German Aerosp. Center (DLR), Wessling
Abstract :
The increasing emergence of data services for mobile applications requires high-speed communication technologies. To this end, free-space optical (FSO) communications technology has the potential to outperform radio frequency (RF) systems. Within the last years, the German Aerospace Center (DLR) has performed several demonstrations of mobile FSO systems. A brief overview of these activities is given in this paper. Mobil FSO mainly suffers from relatively long link outages, produced by temporary obscured laser-beams, pointing-and tracking-errors or deep signal-fades caused by index of refraction turbulence effects. Error correction and retransmission techniques for fading mitigation are discussed in this paper. Comparison of FEC and protocol based error correction for mobile FSO transmission is presented.
Keywords :
fading; forward error correction; mobile communication; optical communication; optical links; space communication links; Europe; FEC; FSO communications technology; German Aerospace Center; data services; error correction techniques; error retransmission techniques; fading mitigation approaches; free-space optical communications technology; high-speed communication technologies; mobile FSO activities; mobile FSO transmission; protocol based error correction; refraction turbulence effects; Artificial satellites; Communications technology; Error correction; Europe; Fading; High speed optical techniques; Mobile communication; Optical fiber communication; Optical refraction; Space technology; ARQ; FEC; Free-space optics; TCP; error correction; mobile optical links;
Conference_Titel :
Radioelektronika, 2007. 17th International Conference
Conference_Location :
Brno
Print_ISBN :
1-4244-0821-0
Electronic_ISBN :
1-4244-0822-9
DOI :
10.1109/RADIOELEK.2007.371452
