| IEICE Technical Committee Submission System Conference Paper's Information |
Online Proceedings [Sign in] Tech. Rep. Archives |
| Go Top Page | Go Previous | [Japanese] / [English] |
| Paper Abstract and Keywords | ||
| Presentation | 2008-04-17 10:20 Azimuth and Elevation Angle Dependency of the Satellite Diversity Characteristics of Rain Attenuation in Ku and Ka band Satellite Communications Links Yasuyuki Maekawa (Osaka Electro-Commun. Univ.), Takeshi Hatsuda (Hokkaido Inst. Tech.)  AP2008-1 |
|
| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The effects of satellite diversity on Ku- and Ka-band rain attenuation were investigated in about ten propagation paths with azimuth angle separations of 10 to 70 deg, using the radio waves continuously received from JCSAT, SCC, BS, and CS-3 (N-STAR) at Osaka Electro-Communication University (OECU) in 1995-1998 and 2003-2007. It is found that the improvement of unavailability for the time percentages due to rain attenuation is increased, as the azimuth separation of the propagation paths is increased. The improvement is, however, slightly decreased as the difference of elevation angles arises. These azimuth and elevation angle dependencies are shown to be described as a simple exponential function of their differences. The magnitude of the improvements does not exceed a factor of 2 or 3, as far as the cumulative time percentages are greater than 0.01%, while recent observations at OECU and Kyoto University (Uji) demonstrate that it may exceed a factor of 10 as the time percentages become smaller than 0.01% with the Ku-band attenuation of greater than about 10 dB. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Satellite Communications / Rain attenuation / Ka band / Ku-band / Satellite diversity / Azimuth angle / Elevation angle / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 5, AP2008-1, pp. 1-6, April 2008. | |
| Paper # | AP2008-1 | |
| Date of Issue | 2008-04-10 (AP) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | AP2008-1 |
|
| Conference Information | |
| Committee | AP |
| Conference Date | 2008-04-17 - 2008-04-17 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka Electro-Communication University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Etc. |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2008-04-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Azimuth and Elevation Angle Dependency of the Satellite Diversity Characteristics of Rain Attenuation in Ku and Ka band Satellite Communications Links |
| Sub Title (in English) | |
| Keyword(1) | Satellite Communications |
| Keyword(2) | Rain attenuation |
| Keyword(3) | Ka band |
| Keyword(4) | Ku-band |
| Keyword(5) | Satellite diversity |
| Keyword(6) | Azimuth angle |
| Keyword(7) | Elevation angle |
| Keyword(8) | |
| 1st Author's Name | Yasuyuki Maekawa |
| 1st Author's Affiliation | Osaka Electro-Communication University (Osaka Electro-Commun. Univ.) |
| 2nd Author's Name | Takeshi Hatsuda |
| 2nd Author's Affiliation | Hokkaido Institute of Technology (Hokkaido Inst. Tech.) |
| 3rd Author's Name | |
| 3rd Author's Affiliation | () |
| 4th Author's Name | |
| 4th Author's Affiliation | () |
| 5th Author's Name | |
| 5th Author's Affiliation | () |
| 6th Author's Name | |
| 6th Author's Affiliation | () |
| 7th Author's Name | |
| 7th Author's Affiliation | () |
| 8th Author's Name | |
| 8th Author's Affiliation | () |
| 9th Author's Name | |
| 9th Author's Affiliation | () |
| 10th Author's Name | |
| 10th Author's Affiliation | () |
| 11th Author's Name | |
| 11th Author's Affiliation | () |
| 12th Author's Name | |
| 12th Author's Affiliation | () |
| 13th Author's Name | |
| 13th Author's Affiliation | () |
| 14th Author's Name | |
| 14th Author's Affiliation | () |
| 15th Author's Name | |
| 15th Author's Affiliation | () |
| 16th Author's Name | |
| 16th Author's Affiliation | () |
| 17th Author's Name | |
| 17th Author's Affiliation | () |
| 18th Author's Name | |
| 18th Author's Affiliation | () |
| Speaker | Author-1 |
| Date Time | 2008-04-17 10:20:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2008-1 |
| Volume (vol) | vol.108 |
| Number (no) | no.5 |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2008-04-10 (AP) |
[Return to Top Page]