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Paper Abstract and Keywords
Presentation 2013-12-19 12:15
Experimental Validation of Digital Pre-distortion Technique for Multi-Band Multi-signal Amplification by Single Feedback System Employing Multi-band Mixer
Ikuma Ando, Gia Khanh Tran, Kiyomichi Araki (Tokyo Tech), Takayuki Yamada, Takana Kaho, Yo Yamaguchi (NTT) MW2013-157 Link to ES Tech. Rep. Archives: MW2013-157
Abstract (in Japanese) (See Japanese page) 
(in English) To realize User-Centric Wireless Networks which integrates various wireless systems on a unified hardware platform toward easy and flexible network connections for users, we examine a multi-band power amplifier (PA) and digital predistortion (DPD) to compensate for nonlinear distortion. DPD is needed to track nonlinear time-varying characteristic of PA due to a change over time or a change in temperature. To compensate for this time-varying characteristic, adaptive predistorter which updates and optimizes coefficients of a polynomial expression is often used. However, each feedback path for each band is needed to compensate for PA noninearity on concurrent amplification of multi-band signals. It results in the increase of the number of RF circuits and the degradation of the system's flexibility. In this paper, we propose a single feedback system employing multi-band mixer which can concurrently convert multi-band signal centered at separated RF frequencies into intermediate frequencies (IF). Our experimental results demonstrate the validity of this feedback system for multi-band digital predistortion technique.
Keyword (in Japanese) (See Japanese page) 
(in English) User-Centric Wireless Networks / Digital Predistortion / Multi-band Mixer / / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 365, MW2013-157, pp. 35-40, Dec. 2013.
Paper # MW2013-157 
Date of Issue 2013-12-12 (MW) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
Copyright
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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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF MW2013-157 Link to ES Tech. Rep. Archives: MW2013-157

Conference Information
Committee MW  
Conference Date 2013-12-19 - 2013-12-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Saitama Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave Technologies / Student 
Paper Information
Registration To MW 
Conference Code 2013-12-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Experimental Validation of Digital Pre-distortion Technique for Multi-Band Multi-signal Amplification by Single Feedback System Employing Multi-band Mixer 
Sub Title (in English)  
Keyword(1) User-Centric Wireless Networks  
Keyword(2) Digital Predistortion  
Keyword(3) Multi-band Mixer  
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1st Author's Name Ikuma Ando  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Gia Khanh Tran  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
3rd Author's Name Kiyomichi Araki  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
4th Author's Name Takayuki Yamada  
4th Author's Affiliation NTT Network Innovation Laboratories (NTT)
5th Author's Name Takana Kaho  
5th Author's Affiliation NTT Network Innovation Laboratories (NTT)
6th Author's Name Yo Yamaguchi  
6th Author's Affiliation NTT Network Innovation Laboratories (NTT)
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Speaker
Date Time 2013-12-19 12:15:00 
Presentation Time 25 
Registration for MW 
Paper # IEICE-MW2013-157 
Volume (vol) IEICE-113 
Number (no) no.365 
Page pp.35-40 
#Pages IEICE-6 
Date of Issue IEICE-MW-2013-12-12 


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