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Paper Abstract and Keywords
Presentation 2007-07-20 09:40
Cooperative interference cancellation for secondary spectrum usage
Kentaro Nishimori (NTT), Hiroyuki Yomo, Petar Popovski (Aalborg Univ.), Yasushi Takatori (NTT), Ramjee Prasad (AAU), Shuji Kubota (NTT) RCS2007-43
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a novel interference cancellation technique using the concept of a distributed array, for the secondary use of the frequency resources in frequency division duplexing (FDD)-based cellular systems. In order to achieve efficient distributed interference cancellation, secondary nodes utilize the periodic training signals, which are generally used for synchronization in FDD- time division multiple access (TDMA)-based cellular systems. We show that efficient interference cancellation can be achieved by introducing \emph{helpers} that assist of
decoding the interference information and transferring the interference information to the secondary nodes. Moreover, we propose a data compressing scheme that reduces transmission time for the interference information transfer. Finally, we clarify the effectiveness of the proposed scheme by using the computer simulation when assuming practical parameters in a cellular system. The computer simulation results indicate that a very high level of frequency re-utilization of the primary spectrum is realized by applying the proposed distributed interference cancellation.
Keyword (in Japanese) (See Japanese page) 
(in English) interference management / periodic tracing signal / FDD systems / distributed array / interference information transfer / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 147, RCS2007-43, pp. 85-90, July 2007.
Paper # RCS2007-43 
Date of Issue 2007-07-12 (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 RCS2007-43

Conference Information
Committee NS RCS  
Conference Date 2007-07-19 - 2007-07-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Kitami Institute of Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2007-07-NS-RCS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Cooperative interference cancellation for secondary spectrum usage 
Sub Title (in English)  
Keyword(1) interference management  
Keyword(2) periodic tracing signal  
Keyword(3) FDD systems  
Keyword(4) distributed array  
Keyword(5) interference information transfer  
Keyword(6)  
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1st Author's Name Kentaro Nishimori  
1st Author's Affiliation NTT Corporation (NTT)
2nd Author's Name Hiroyuki Yomo  
2nd Author's Affiliation Aalborg University (Aalborg Univ.)
3rd Author's Name Petar Popovski  
3rd Author's Affiliation Aalborg University (Aalborg Univ.)
4th Author's Name Yasushi Takatori  
4th Author's Affiliation NTT Corporation (NTT)
5th Author's Name Ramjee Prasad  
5th Author's Affiliation Aalborg University (AAU)
6th Author's Name Shuji Kubota  
6th Author's Affiliation NTT Corporation (NTT)
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Speaker Author-1 
Date Time 2007-07-20 09:40:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2007-43 
Volume (vol) vol.107 
Number (no) no.147 
Page pp.85-90 
#Pages 6 
Date of Issue 2007-07-12 (RCS) 

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