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Paper Abstract and Keywords
Presentation 2012-12-14 11:10
A Study on Relaxation of Co-Channel Interference Using Cell Blanking for Uplink in Femto Cell Networks
Akihiro Ogawa, Shinsuke Ibi, Seiichi Sampei (Osaka Univ.) RCS2012-215
Abstract (in Japanese) (See Japanese page) 
(in English) This paper investigates resource allocation problems for spectrum sharing in overlay femto cell network which is constituted by randomly distributed femto base stations. In this scenario, it is subject to severe co-channel interference (CCI). Thus, aiming at maximization of sum-rate capacity, radio resource management (RRM) plays an important role in alleviating the CCI issue. An appropriate RRM is carried out by finding global optimum after formulating an optimization problem which requests information of interference levels from all femto cell. According to the number of users in the overlay networks, it requires huge burden for collections of such kind of information. This paper focuses on autonomous distributed RRM to find local optima without sacrificing costs of the notification. However, due to the distributed manner, it does not take into account inter-femto cell CCI. As a result, the global optimum and combination of local optima are not identical, resulting in different sum rate capacity. In order to shrink the gap, in terms of capacity, this paper proposes a novel mechanism with the assist of several bits notification of knowledge on mutual CCI and a cooperative cell blanking technique. Computer simulations have been conducted to verify the proposed approach.
Keyword (in Japanese) (See Japanese page) 
(in English) Femto Cell / Uplink / Co-Channel Interference / Spectrum Sharing / Cell Blanking / Radio Resource Management / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 351, RCS2012-215, pp. 191-196, Dec. 2012.
Paper # RCS2012-215 
Date of Issue 2012-12-06 (RCS) 
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 RCS2012-215

Conference Information
Committee NS RCS  
Conference Date 2012-12-13 - 2012-12-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Ehime Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Ad-hoc Network, Ubiquitous Network, Wireless Communication, security, Multi-Access Network 
Paper Information
Registration To RCS 
Conference Code 2012-12-NS-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Relaxation of Co-Channel Interference Using Cell Blanking for Uplink in Femto Cell Networks 
Sub Title (in English)  
Keyword(1) Femto Cell  
Keyword(2) Uplink  
Keyword(3) Co-Channel Interference  
Keyword(4) Spectrum Sharing  
Keyword(5) Cell Blanking  
Keyword(6) Radio Resource Management  
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Keyword(8)  
1st Author's Name Akihiro Ogawa  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Shinsuke Ibi  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Seiichi Sampei  
3rd Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2012-12-14 11:10:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2012-215 
Volume (vol) vol.112 
Number (no) no.351 
Page pp.191-196 
#Pages 6 
Date of Issue 2012-12-06 (RCS) 

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