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Paper Abstract and Keywords
Presentation 2017-03-03 16:00
Experimental Evaluation of Transmission Timing Control for QZSS Short Message Synchronized SS-CDMA Communication
Kei Ohya, Suguru Kameda (Tohoku Univ.), Hiroshi Oguma (NIT, Toyama College), Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) SR2016-109
Abstract (in Japanese) (See Japanese page) 
(in English) We have proposed synchronized spread-spectrum code-division multiple-access (SS-CDMA) communication for location and short message system using Quasi-Zenith Satellite System (QZSS) as a safety confirmation system at the time of great disaster.
In this communication, each user terminal calculates a distance to correspondent satellite and controls the transmission timing using satellite positioning signal in order to synchronize the satellite arrival timing of the uplink signals.
In this paper, we measure the terminal time deviation and propagation delay error caused by the position error at the same time and evaluate the satellite arrival timing error of the uplink signal.
By this measurement, it is shown that the satellite arrival timing error of 50 ns can be achieved with 99.98% of terminals.
This result shows that it is possible to accommodate terminals at high density.
Keyword (in Japanese) (See Japanese page) 
(in English) satellite communication / Quasi-Zenith Satellite System (QZSS) / Global Positioning System (GPS) / spread-spectrum code-division multiple-access (SS-CDMA) / time synchronization / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 480, SR2016-109, pp. 89-94, March 2017.
Paper # SR2016-109 
Date of Issue 2017-02-22 (SR) 
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 SR2016-109

Conference Information
Committee RCS SR SRW  
Conference Date 2017-03-01 - 2017-03-03 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To SR 
Conference Code 2017-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Experimental Evaluation of Transmission Timing Control for QZSS Short Message Synchronized SS-CDMA Communication 
Sub Title (in English)  
Keyword(1) satellite communication  
Keyword(2) Quasi-Zenith Satellite System (QZSS)  
Keyword(3) Global Positioning System (GPS)  
Keyword(4) spread-spectrum code-division multiple-access (SS-CDMA)  
Keyword(5) time synchronization  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Kei Ohya  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Suguru Kameda  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Hiroshi Oguma  
3rd Author's Affiliation National Institute of Technology, Toyama College (NIT, Toyama College)
4th Author's Name Noriharu Suematsu  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
5th Author's Name Tadashi Takagi  
5th Author's Affiliation Tohoku University (Tohoku Univ.)
6th Author's Name Kazuo Tsubouchi  
6th Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2017-03-03 16:00:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2016-109 
Volume (vol) vol.116 
Number (no) no.480 
Page pp.89-94 
#Pages 6 
Date of Issue 2017-02-22 (SR) 

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