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Paper Abstract and Keywords
Presentation 2014-06-17 09:40
Transmission Performance of QZSS Short Message Communication SS-CDMA in Rayleigh Fadaing Environment
Kohei Akimoto, Yuji Miyake, Suguru Kameda, Akinori Taira, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) RCS2014-37
Abstract (in Japanese) (See Japanese page) 
(in English) Quasi-Zenith Satellite System (QZSS) is expected to provide a high accurate positioning service and allows two-way communication which includes the terminal position information and short messages. In this paper, transmission performance of spread spectrum code division multiple access (SS-CDMA) system in fading environment is evaluated. In urban areas, it will be assumed that a transmission channel becomes one-path Rayleigh fading environment because terminals communicate with the geostationary satellite of 45 ascending vertical angles. We examined the fundamental transmission performance of one-path Rayleigh fading environment using computer simulation when the frequency and time synchronization among all terminals, and channel estimation is ideal. It was shown that can respond to movement of the users to around 12 km/h with interleave in state near accommodation rate 100 % of the full load of CDMA. Moreover, when the number of accommodation users was reduced in half from the full load, it was shown that the same performance as the PER characteristics of about 12 km/h can be obtained at the time of the movement speed of about 36 km/h.
Keyword (in Japanese) (See Japanese page) 
(in English) Quasi Zenith Satellite (QZS) / Quasi Zenith Satellite System (QZSS) / Spread Spectrum (SS) / Code Division Multiple Access (CDMA) / SS-CDMA / Rayleigh fading environment / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 86, RCS2014-37, pp. 31-36, June 2014.
Paper # RCS2014-37 
Date of Issue 2014-06-10 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 RCS2014-37

Conference Information
Committee RCS  
Conference Date 2014-06-17 - 2014-06-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa-ken Seinenkaikan (Naha) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2014-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Transmission Performance of QZSS Short Message Communication SS-CDMA in Rayleigh Fadaing Environment 
Sub Title (in English)  
Keyword(1) Quasi Zenith Satellite (QZS)  
Keyword(2) Quasi Zenith Satellite System (QZSS)  
Keyword(3) Spread Spectrum (SS)  
Keyword(4) Code Division Multiple Access (CDMA)  
Keyword(5) SS-CDMA  
Keyword(6) Rayleigh fading environment  
1st Author's Name Kohei Akimoto  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Yuji Miyake  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Suguru Kameda  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Akinori Taira  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
5th Author's Name Noriharu Suematsu  
5th Author's Affiliation Tohoku University (Tohoku Univ.)
6th Author's Name Tadashi Takagi  
6th Author's Affiliation Tohoku University (Tohoku Univ.)
7th Author's Name Kazuo Tsubouchi  
7th Author's Affiliation Tohoku University (Tohoku Univ.)
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Date Time 2014-06-17 09:40:00 
Presentation Time
Registration for RCS 
Paper # IEICE-RCS2014-37 
Volume (vol) IEICE-114 
Number (no) no.86 
Page pp.31-36 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2014-06-10 

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