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Paper Abstract and Keywords
Presentation 2016-07-20 12:30
[Poster Presentation] A study on blind channel estimation by EM algorithm for OFDM systems with multi-QAM
Hirokazu Abe, Masahiro Fujii (Utsunomiya Univ.), Takanori Iwamatsu (Fujitsu Telecom Networks), Hiroyuki Hatano, Atsushi Ito, Yu Watanabe (Utsunomiya Univ.) WBS2016-17 MICT2016-18
Abstract (in Japanese) (See Japanese page) 
(in English) We have investigated a blind channel estimation method based on the EM algorithm so far.
Since the conventional method selects the observed signals corresponding to the transmitted symbols with maximum amplitude to simplify the blind channel estimation, the others are not utilized.
In this paper, we propose a new blind channel estimation method for improving accuracy by using the unutilized observed signals in the conventional method.
The proposed method estimates the channel by using the all observed signals effectively based on the order statistics of the amplitudes of the multivalued QAM.
By computer simulations, we show that the proposed estimator can asymptotically achieve a performance of the pilot based ML estimation.
Keyword (in Japanese) (See Japanese page) 
(in English) Blind channel estimation / OFDM / EM algorithm / Channel frequency response correlation / / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 140, WBS2016-17, pp. 33-38, July 2016.
Paper # WBS2016-17 
Date of Issue 2016-07-13 (WBS, MICT) 
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 WBS2016-17 MICT2016-18

Conference Information
Committee MICT WBS  
Conference Date 2016-07-20 - 2016-07-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Ｔｏｋyo Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Poster Session, Wideband System, Healthcare and Medical Information Communication Technologies, etc. 
Paper Information
Registration To WBS 
Conference Code 2016-07-MICT-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on blind channel estimation by EM algorithm for OFDM systems with multi-QAM 
Sub Title (in English)  
Keyword(1) Blind channel estimation  
Keyword(2) OFDM  
Keyword(3) EM algorithm  
Keyword(4) Channel frequency response correlation  
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1st Author's Name Hirokazu Abe  
1st Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
2nd Author's Name Masahiro Fujii  
2nd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
3rd Author's Name Takanori Iwamatsu  
3rd Author's Affiliation Fujitsu Telecom Networks Limited (Fujitsu Telecom Networks)
4th Author's Name Hiroyuki Hatano  
4th Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
5th Author's Name Atsushi Ito  
5th Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
6th Author's Name Yu Watanabe  
6th Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
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Speaker Author-1 
Date Time 2016-07-20 12:30:00 
Presentation Time 120 minutes 
Registration for WBS 
Paper # WBS2016-17, MICT2016-18 
Volume (vol) vol.116 
Number (no) no.140(WBS), no.141(MICT) 
Page pp.33-38 
#Pages 6 
Date of Issue 2016-07-13 (WBS, MICT) 

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