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Paper Abstract and Keywords
Presentation 2007-11-27 09:00
Spectrum Sharing by Adaptive Transmit Power Contorl for Low Priority Systems and its Achievable Capacity
Hiromasa Fujii, Hitoshi Yoshino (NTT DoCoMo) SR2007-48
Abstract (in Japanese) (See Japanese page) 
(in English) A spectrum sharing method is proposed for the systems which share the same frequency band or adjacent bands with different priorities. The proposed method adaptively controls transmission power according to information offered by high-priority system receivers. We give theoretical capacities achieved by low-priority systems when the proposed method and a conventional method are applied. As for the conventional method, a low-priority terminal is assumed to use constant transmit power and starts its transmission if it does not interfere high-priority systems. Numerical results confirm that the proposed method attains 1.5-2 times larger capacity than the conventional method.
Keyword (in Japanese) (See Japanese page) 
(in English) spectrum sharing / achievable capacity / system priority / / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 352, SR2007-48, pp. 15-20, Nov. 2007.
Paper # SR2007-48 
Date of Issue 2007-11-19 (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)
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Conference Information
Committee SR  
Conference Date 2007-11-26 - 2007-11-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Hirishima international univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Cognitive radio session. panel session and general session 
Paper Information
Registration To SR 
Conference Code 2007-11-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Spectrum Sharing by Adaptive Transmit Power Contorl for Low Priority Systems and its Achievable Capacity 
Sub Title (in English)  
Keyword(1) spectrum sharing  
Keyword(2) achievable capacity  
Keyword(3) system priority  
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1st Author's Name Hiromasa Fujii  
1st Author's Affiliation NTT DoCoMo, Inc. (NTT DoCoMo)
2nd Author's Name Hitoshi Yoshino  
2nd Author's Affiliation NTT DoCoMo, Inc. (NTT DoCoMo)
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Date Time 2007-11-27 09:00:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2007-48 
Volume (vol) vol.107 
Number (no) no.352 
Page pp.15-20 
#Pages
Date of Issue 2007-11-19 (SR) 


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