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Paper Abstract and Keywords
Presentation 2015-03-04 09:00
A Study on Estimation of Amplifier Nonlinearity for Adjacent Channel Interference Cancellation in Millimeter Wave Communication Systems
Noboru Osawa, Shinsuke Ibi, Kei Sakaguchi, Seiichi Sampei (Osaka Univ.) RCS2014-308
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes an estimation method of amplifier nonlinearity for adjacent channel interference (ACI) cancellation in millimeter wave communication systems. In millimeter wave communication systems, transmit signal is heavily distorted, resulting in severe ACI problem. This is because a nonlinear region of power amplifier is intentionally utilized in terms of power efficiency. In this case, an interference cancellation technique plays a key role to suppress ACI. The canceller generates replicas of the interference signal and subtracts the interference replica from the received signal in iterative receiver. In this method, the amplifier nonlinearity and channel transfer property must be captured in the receiver side. Thus, we propose a novel estimation method of amplifier nonlinearity, with the assistance of nonlinear regression analysis on the basis of channel transfer property. However, Peak to Average Power Ratio (PAPR) of the data sequences is higher than that of pilot sequences, and estimation of amplifier nonlinearity only using pilot sequences is insufficient to generate interference replica. Thus, this paper also investigate an estimation method of nonlinearity by means of using error free data sequences. We confirm that proposed scheme is effective in ACI cancellation.
Keyword (in Japanese) (See Japanese page) 
(in English) Millimeter wave / Power amplifier / Adjacent channel interference / Nonlinearity / Iterative detection / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 490, RCS2014-308, pp. 41-46, March 2015.
Paper # RCS2014-308 
Date of Issue 2015-02-25 (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 RCS2014-308

Conference Information
Committee RCS SR SRW  
Conference Date 2015-03-04 - 2015-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2015-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Estimation of Amplifier Nonlinearity for Adjacent Channel Interference Cancellation in Millimeter Wave Communication Systems 
Sub Title (in English)  
Keyword(1) Millimeter wave  
Keyword(2) Power amplifier  
Keyword(3) Adjacent channel interference  
Keyword(4) Nonlinearity  
Keyword(5) Iterative detection  
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1st Author's Name Noboru Osawa  
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 Kei Sakaguchi  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Seiichi Sampei  
4th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2015-03-04 09:00:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2014-308 
Volume (vol) vol.114 
Number (no) no.490 
Page pp.41-46 
#Pages 6 
Date of Issue 2015-02-25 (RCS) 

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