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Paper Abstract and Keywords
Presentation 2016-01-22 10:05
Auxiliary Update of Primary Exclusive Region for Database-driven Spectrum Sharing
Shota Yamashita, Koji Yamamoto, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.) SR2015-80
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents a framework for dealing with an unexpected situation that a primary user suffers harmful interference with regard to database-driven secondary use of spectrum allocated to the primary user towards 5G mobile networks, where the primary user is assumed to be a radar system. In our proposed framework, the primary user informs a database that the primary user suffers harmful interference. Receiving the information, the database updates a primary exclusive region where secondary users are prohibited from using the licensed spectrum. The primary exclusive region after update depends on the knowledge of the secondary users when the primary user suffers harmful interference, which the knowledge is stored in the database. We assume a circular primary exclusive region centered at a primary receiver and derive an optimal radius of the primary exclusive region by applying stochastic geometry. Then, for each type of secondary user's knowledge stored in the database, we evaluate the optimal radius for a target probability that the primary user suffers harmful interference. The results show that the more detailed knowledge of the secondary user's density and transmission powers is stored in the database, the smaller the primary exclusive region radius after update can be determined and the more efficiently spatial reuse of the licensed spectrum is achieved.
Keyword (in Japanese) (See Japanese page) 
(in English) 5G / Cognitive radio / Spectrum sharing / Database / Stochastic geometry / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 411, SR2015-80, pp. 57-61, Jan. 2016.
Paper # SR2015-80 
Date of Issue 2016-01-14 (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 SR2015-80

Conference Information
Committee SR  
Conference Date 2016-01-21 - 2016-01-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukue-bunka-kaikan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Cognitive wireless network, Cross layer wireless technology, SDN, etc. 
Paper Information
Registration To SR 
Conference Code 2016-01-SR 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Auxiliary Update of Primary Exclusive Region for Database-driven Spectrum Sharing 
Sub Title (in English)  
Keyword(1) 5G  
Keyword(2) Cognitive radio  
Keyword(3) Spectrum sharing  
Keyword(4) Database  
Keyword(5) Stochastic geometry  
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Keyword(7)  
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1st Author's Name Shota Yamashita  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Koji Yamamoto  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Takayuki Nishio  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Masahiro Morikura  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2016-01-22 10:05:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2015-80 
Volume (vol) vol.115 
Number (no) no.411 
Page pp.57-61 
#Pages 5 
Date of Issue 2016-01-14 (SR) 

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