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Paper Abstract and Keywords
Presentation 2018-03-02 11:45
Blind frequency-dependent IQ imbalance compensation using constant norm algorithm for OFDM systems
Ryoto Hamabe, Tadao Nakagawa (Tottori Univ.), Doohwan Lee, Takana Kaho (NTT) SRW2017-90
Abstract (in Japanese) (See Japanese page) 
(in English) As the frequency bandwidth in wireless communications are wide, impairments of analog circuits of transceivers including IQ imbalance become exacerbated and have frequency-dependent. In this paper, we report a blind compensation technique for frequency-dependent IQ imbalance of OFDM systems using constant norm algorithm (CNA). It shows better transmission performance compared to conventional constant modulus algorithm (CMA).
Keyword (in Japanese) (See Japanese page) 
(in English) IQ imbalance / quadrature error / OFDM, / CNA / CMA / blind compensation / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 458, SRW2017-90, pp. 105-108, Feb. 2018.
Paper # SRW2017-90 
Date of Issue 2018-02-21 (SRW) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 SRW2017-90

Conference Information
Committee RCS SR SRW  
Conference Date 2018-02-28 - 2018-03-02 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To SRW 
Conference Code 2018-02-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Blind frequency-dependent IQ imbalance compensation using constant norm algorithm for OFDM systems 
Sub Title (in English)  
Keyword(1) IQ imbalance  
Keyword(2) quadrature error  
Keyword(3) OFDM,  
Keyword(4) CNA  
Keyword(5) CMA  
Keyword(6) blind compensation  
1st Author's Name Ryoto Hamabe  
1st Author's Affiliation Tottori University (Tottori Univ.)
2nd Author's Name Tadao Nakagawa  
2nd Author's Affiliation Tottori University (Tottori Univ.)
3rd Author's Name Doohwan Lee  
3rd Author's Affiliation NTT Corporation (NTT)
4th Author's Name Takana Kaho  
4th Author's Affiliation NTT Corporation (NTT)
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Date Time 2018-03-02 11:45:00 
Presentation Time 25 
Registration for SRW 
Paper # IEICE-SRW2017-90 
Volume (vol) IEICE-117 
Number (no) no.458 
Page pp.105-108 
#Pages IEICE-4 
Date of Issue IEICE-SRW-2018-02-21 

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