| 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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| PDF Download Page |  PDF download Page Link |
| 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 |
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| 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 |
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| 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) |