DocumentCode :
385162
Title :
Fiber and free-space hybrid optical networking for new generation mobile radio access network
Author :
Aburakawa, Yuji ; OTSU, Tom ; YAM, Yasushi
Author_Institution :
Wireless Labs., NTT DoCoMo Inc., Kanagawa, Japan
Volume :
2
fYear :
2002
fDate :
27-30 Oct. 2002
Firstpage :
586
Abstract :
This paper proposes fiber and free-space hybrid optical (FFHO) networking for radio access networks (RANs) in the new generation mobile communication systems. FFHO networking applies technologies that cause fiber transmitted optical signals to be emitted directly into free-space and make free-space transmitted optical signals focus directly onto fibers by using beam size converters such as a lens. This networking provides flexibility to the optical network structure and expands the application areas of the existing optical fiber infrastructure such as dark fiber. Optical signals with 1.55-μm band transmission characteristics such as BER and atmosphere attenuation caused by weather conditions through free-space transmission are presented as the basis of the transmission evaluation. The evaluation results show that FFHO transmission incurs a penalty of about 1.5 dB in received power compared to fiber transmission and that FFHO has atmosphere attenuation characteristics comparable to conventional optical free-space transmission systems using the 800-nm wavelength band.
Keywords :
atmospheric light propagation; error statistics; land mobile radio; light absorption; optical fibre communication; optical links; radio access networks; 1.55 micron; 800 nm; BER; FFHO networking; FFHO transmission; atmosphere attenuation; beam size converters; dark fiber; fiber transmission; fiber transmitted optical signals; fiber/free-space hybrid optical networking; free-space free-space transmitted optical signals; free-space transmission; lens; mobile communication systems; optical fiber infrastructure; optical free-space transmission systems; optical network structure; radio access networks; received power; weather conditions; Atmosphere; Hybrid power systems; Land mobile radio; Mobile communication; Optical attenuators; Optical fiber communication; Optical fiber networks; Optical fibers; Radio access networks; Stimulated emission;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Personal Multimedia Communications, 2002. The 5th International Symposium on
ISSN :
1347-6890
Print_ISBN :
0-7803-7442-8
Type :
conf
DOI :
10.1109/WPMC.2002.1088242
Filename :
1088242
Link To Document :
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