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Paper Abstract and Keywords
Presentation 2011-09-08 14:35
A study on bi-directional propagation characteristics due to rain attenuation between Tokyo and Osaka in Ka-band satellite communications links
Yasuyuki Maekawa (Osaka Electro-Commun. Univ.) AP2011-64
Abstract (in Japanese) (See Japanese page) 
(in English) Bi-directional propagation characteristics due to rain attenuation between Tokyo and Osaka in Ka-band satellite communication links are investigated using the rain attenuation observations of CS-2 and CS-3 beacon signals (19.45GHz, RHCP) conducted at Osaka Electro-Communication University, Neyagawa, Osaka, and CSK Tokyo Setagaya earth station, in 1987, 1990-1990. The up-link (28.98GHz) attenuation at each earth station is estimated by frequency scaling methods taking raindrop size distributions (DSD) into consideration. The long-term cumulative time percentages for up- and down-link bi-directional rain attenuation of 10-20 dB are both shown to be about 5 times larger than those for down-link rain attenuation of the same range between Tokyo and Osaka, with the attenuation values being about 2.5 times larger at time percentages around 0.1%. For their monthly statistics, the time percentages of attenuation occurrence are rather enhanced at August and September, when the signals are transmitted from Tokyo to Osaka. For their hourly statistics, the time percentages are slightly increased in afternoon and evening hours, when the signals are transmitted from Osaka to Tokyo. These statistics are found to be affected to more extent by up-link rain attenuation characteristics at Tokyo and Osaka, respectively.
Keyword (in Japanese) (See Japanese page) 
(in English) Satellite Communications / Ka-band / Rain attenuation / Bi-directional / Monthly statistics / Hourly statistics / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 200, AP2011-64, pp. 1-6, Sept. 2011.
Paper # AP2011-64 
Date of Issue 2011-09-01 (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)
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Conference Information
Committee MW AP  
Conference Date 2011-09-08 - 2011-09-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To AP 
Conference Code 2011-09-MW-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on bi-directional propagation characteristics due to rain attenuation between Tokyo and Osaka in Ka-band satellite communications links 
Sub Title (in English)  
Keyword(1) Satellite Communications  
Keyword(2) Ka-band  
Keyword(3) Rain attenuation  
Keyword(4) Bi-directional  
Keyword(5) Monthly statistics  
Keyword(6) Hourly statistics  
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Keyword(8)  
1st Author's Name Yasuyuki Maekawa  
1st Author's Affiliation Osaka Electro-Communication University (Osaka Electro-Commun. Univ.)
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Speaker Author-1 
Date Time 2011-09-08 14:35:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2011-64 
Volume (vol) vol.111 
Number (no) no.200 
Page pp.1-6 
#Pages 6 
Date of Issue 2011-09-01 (AP) 

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