Presentation 2022-10-06
A study on Site Diversity Effect between Different Satellites using Rain Attenuation Characteristics of Ku-band Satellite Communication Links
Yasuyuki Maekawa, Koichi Harada, Junichi Abe, Fumihiro Yamashita,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The signal levels of Ku-band BS broadcast radio waves and JCSAT-5A beacon radio waves have been simultaneously measured at Osaka Electro-Communication University (OECU, Neyagawa City, Osaka Prefecture), NTT Yokosuka R&D Center (Yokosuka City), and satellite base station (Matsuyama City), respectively, at 1 min interval from April to July, 2022. The time difference in rain attenuation occurrence and the site diversity effect are examined among these three stations with relatively long distances of about 300 km to 700 km between eastern and western areas of Japan. As regards about 40 rainfall events measured during this period, rain attenuation occurred in the order of Matsuyama City, Neyagawa City, and Yokosuka City, from west to east with a time difference of about 3 to 5 hours. In addition, the site diversity effects are numerically evaluated using the rain attenuation measured at the three stations during the four-month period, and shown to considerably agree with the ITU-R recommendations in the time percentage of 0.5% over the relatively long distances.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Satellite communications / Rain attenuation / Ku-band / Sate diversity / Long distance / ITU-R recommendations
Paper # SAT2022-48
Date of Issue 2022-09-29 (SAT)

Conference Information
Committee SAT / KOSST
Conference Date 2022/10/6(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Tetsushi Ikegami(Meiji Univ.)
Vice Chair Masashi Kamei(NHK) / Takana Kaho(Shonan Inst. of Tech.)
Secretary Masashi Kamei(NTT) / Takana Kaho(NICT)
Assistant Riichiro Nagareda(KDDI Research) / Yuuki Koizumi(NHK)

Paper Information
Registration To Technical Committee on Satellite Telecommunications / Korea Society of Satellite Technology
Language ENG-JTITLE
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A study on Site Diversity Effect between Different Satellites using Rain Attenuation Characteristics of Ku-band Satellite Communication Links
Sub Title (in English)
Keyword(1) Satellite communications
Keyword(2) Rain attenuation
Keyword(3) Ku-band
Keyword(4) Sate diversity
Keyword(5) Long distance
Keyword(6) ITU-R recommendations
1st Author's Name Yasuyuki Maekawa
1st Author's Affiliation Osaka Electro-Communication University(Osaka Electro-Commun. Univ.)
2nd Author's Name Koichi Harada
2nd Author's Affiliation NTT Access Network System Laboratories(NTT)
3rd Author's Name Junichi Abe
3rd Author's Affiliation NTT Access Network System Laboratories(NTT)
4th Author's Name Fumihiro Yamashita
4th Author's Affiliation NTT Access Network System Laboratories(NTT)
Date 2022-10-06
Paper # SAT2022-48
Volume (vol) vol.122
Number (no) SAT-199
Page pp.pp.20-24(SAT),
#Pages 5
Date of Issue 2022-09-29 (SAT)