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Paper Abstract and Keywords
Presentation 2019-06-19 10:00
A Fundamental Study on Downlink Channel Estimation in an FDD System Based on Impulse Response Estimation
Shiori Tosaka, Yasutaka Ogawa, Toshihiko Nishimura, Takeo Ohgane, Junichiro Hagiwara (Hokkaido Univ.) RCS2019-40
Abstract (in Japanese) (See Japanese page) 
(in English) In an FDD system, downlink channel state information (CSI) is necessary at a base station for efficient transmission. The CSI estimated at user equipment using downlink training symbols is fed back to the base station. This method, however, reduces the transmission efficiency. In this paper, we propose a method to obtain downlink CSI at a base station based on impulse response estimation using uplink pilot symbols in a wideband OFDM system. We apply FISTA, an algorithm of compressed sensing, to estimate the impulse response. We evaluate the basic performance in a SISO system and compare the estimation performance with that of IDFT. It will be shown that the downlink channel estimation by FISTA is accurate and better than that by IDFT.
Keyword (in Japanese) (See Japanese page) 
(in English) FDD / channel estimation / compressed sensing / IDFT / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 90, RCS2019-40, pp. 19-24, June 2019.
Paper # RCS2019-40 
Date of Issue 2019-06-12 (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)
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Conference Information
Committee RCS  
Conference Date 2019-06-19 - 2019-06-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Miyakojima Hirara Port Terminal Building 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2019-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Fundamental Study on Downlink Channel Estimation in an FDD System Based on Impulse Response Estimation 
Sub Title (in English)  
Keyword(1) FDD  
Keyword(2) channel estimation  
Keyword(3) compressed sensing  
Keyword(4) IDFT  
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1st Author's Name Shiori Tosaka  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
2nd Author's Name Yasutaka Ogawa  
2nd Author's Affiliation Hokkaido University (Hokkaido Univ.)
3rd Author's Name Toshihiko Nishimura  
3rd Author's Affiliation Hokkaido University (Hokkaido Univ.)
4th Author's Name Takeo Ohgane  
4th Author's Affiliation Hokkaido University (Hokkaido Univ.)
5th Author's Name Junichiro Hagiwara  
5th Author's Affiliation Hokkaido University (Hokkaido Univ.)
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Speaker
Date Time 2019-06-19 10:00:00 
Presentation Time 10 
Registration for RCS 
Paper # IEICE-RCS2019-40 
Volume (vol) IEICE-119 
Number (no) no.90 
Page pp.19-24 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2019-06-12 


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