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Paper Abstract and Keywords
Presentation 2013-07-19 11:15
A Study of Synchronization Methods for Digital Public Private Mobile Radio Systems Employing Heterogeneous Cognitive Radio
Masafumi Moriyama, Takeo Fujii (UEC) SR2013-53
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, to actualize the heterogeneous cognitive radio system which combines digital public private mobile radio systems (DPPMRS) and commercial mobile wireless communication systems (CMWCS), we propose a synchronization method of the DPPMRS. This cognitive radio can improve bit error rate (BER) performance of the DPPMRS by receiving subsidiary information used to decrease BER of the DPPMRS from the CMWCS. However, the problem with cognitive radio is that the subsidiary information cannot be utilized when the communication quality of the DPPMRS becomes extremely poor and the synchronization of the DPPMRS is lost. For this reason, we propose a DPPMRS’ symbol synchronization method by employing timing synchronization derived from the Global Positioning System (GPS). The cognitive radio can acquire the symbol synchronization by using time information of the GPS and the subsidiary information having the information of transiting time of the DPPMRS. When time error happened in the GPS, since the radio-wave-propagation delay and the delaying waves occur, the symbol synchronization timing of this method shifts from the optimal timing. Thus, we propose a mitigation method of the timing shift and evaluate BER performance degradation caused by the timing shift using a computation simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) Digital Public Private Mobile Radio Systems / Cognitive radio / symbol synchronization / GPS / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 131, SR2013-53, pp. 179-185, July 2013.
Paper # SR2013-53 
Date of Issue 2013-07-10 (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 SR2013-53

Conference Information
Committee ASN RCS NS SR  
Conference Date 2013-07-17 - 2013-07-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Hamamatsu Act City 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Distributed Networks, M2M (Machine-to-Machine), D2D (Device-to-Device), etc. 
Paper Information
Registration To SR 
Conference Code 2013-07-ASN-RCS-NS-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study of Synchronization Methods for Digital Public Private Mobile Radio Systems Employing Heterogeneous Cognitive Radio 
Sub Title (in English)  
Keyword(1) Digital Public Private Mobile Radio Systems  
Keyword(2) Cognitive radio  
Keyword(3) symbol synchronization  
Keyword(4) GPS  
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1st Author's Name Masafumi Moriyama  
1st Author's Affiliation University of Electro-Communications (UEC)
2nd Author's Name Takeo Fujii  
2nd Author's Affiliation University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2013-07-19 11:15:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2013-53 
Volume (vol) vol.113 
Number (no) no.131 
Page pp.179-185 
#Pages 7 
Date of Issue 2013-07-10 (SR) 

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