Foliage Attenuation Characteristics for LMDS Radio Channel

Akihiro KAJIWARA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E83-B   No.9   pp.2130-2134
Publication Date: 2000/09/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Electromagnetic Compatibility(EMC)
Keyword: 
LMDS,  foliage attenuation,  wireless radio,  

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Summary: 
This paper investigates an obstructed radio channel by foliage for LMDS (local multipoint distribution services) where a relative evaluation of attenuation characteristics of foliage at 29.5 and 5 GHz is performed. Results show that the attenuation in dB should be treated statistically as Rician distribution. It is also found that swaying foliage in wind causes a significant channel fading at 29.5 GHz, ranging over 10 dB, while the fading depth at 5 GHz is approximately 2 dB.