Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
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 2008-07-23 13:00
Improvement Factor of Ku-band Satellite Diversity Effects Related to Rain Area Motion
Yasuyuki Maekawa, Koichi Sawai, Yoshiaki Shibagaki, Tomoyuki Takami (Osaka Electro-Commun. Univ.), Takeshi Hatsuda (Hokkaido Inst. Tech.) AP2008-42
Abstract (in Japanese) (See Japanese page) 
(in English) The effects of site diversity techniques on Ku-band rain attenuation are investigated using two sets of simultaneous satellite signal observations, which have been conducted among Osaka Electro-Communication University (OECU) in Neyagawa, Kyoto University in Uji, and Shigaraki MU Observatory in Koga for about past six years, and among the headquarters of OECU in Neyagawa and their other facilities in Shijonawate and Moriguchi for about past three years. The site diversity effects are found to be largely affected by the passing direction of rain areas characterized by each rain type, such as warm, cold, and stationary fronts or typhoon, for the horizontal site separations of 3-50 km. Also, the improvement factor of the diversity effects primarily depends on the distance between the sites projected to the rain area motions. Further analyses of the two sets of the attenuation measurements at those three locations reveal that this improvement factor can be reduced down to about 60 % of the ITU-R predictions, concerned with fixed two sites, by choosing a pair of the sites aligned nearest to the rain area motion at each rainfall event, yielding about 50% reduction of unavailable time percentages.
Keyword (in Japanese) (See Japanese page) 
(in English) Satellite communications / Rain attenuation / Ku-band, / Site diversity / Rain area / Passage velocity / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 148, AP2008-42, pp. 35-40, July 2008.
Paper # AP2008-42 
Date of Issue 2008-07-16 (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 AP2008-42

Conference Information
Committee AP SAT  
Conference Date 2008-07-23 - 2008-07-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Satellite Communications, Antennas and Progation, etc. 
Paper Information
Registration To AP 
Conference Code 2008-07-AP-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement Factor of Ku-band Satellite Diversity Effects Related to Rain Area Motion 
Sub Title (in English)  
Keyword(1) Satellite communications  
Keyword(2) Rain attenuation  
Keyword(3) Ku-band,  
Keyword(4) Site diversity  
Keyword(5) Rain area  
Keyword(6) Passage velocity  
Keyword(7)  
Keyword(8)  
1st Author's Name Yasuyuki Maekawa  
1st Author's Affiliation Osaka Electro-Communication University (Osaka Electro-Commun. Univ.)
2nd Author's Name Koichi Sawai  
2nd Author's Affiliation Osaka Electro-Communication University (Osaka Electro-Commun. Univ.)
3rd Author's Name Yoshiaki Shibagaki  
3rd Author's Affiliation Osaka Electro-Communication University (Osaka Electro-Commun. Univ.)
4th Author's Name Tomoyuki Takami  
4th Author's Affiliation Osaka Electro-Communication University (Osaka Electro-Commun. Univ.)
5th Author's Name Takeshi Hatsuda  
5th Author's Affiliation Hokkaido Institute of Technology (Hokkaido Inst. Tech.)
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 ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2008-07-23 13:00:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2008-42 
Volume (vol) vol.108 
Number (no) no.148 
Page pp.35-40 
#Pages 6 
Date of Issue 2008-07-16 (AP) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan