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Paper Abstract and Keywords
Presentation 2014-04-18 11:20
Performance of Decision-Feedback Channel Estimation Using SFBC for TDM Based Control Signals in OFDMA Downlink
Shinya Hirayama (Tokyo City Univ.), Kazuaki Takeda, Teruo Kawamura (NTT DOCOMO), Mamoru Sawahashi (Tokyo City Univ.) RCS2014-12
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents the average block error rate (BLER) performance of time division multiplexing (TDM) based control signals with space-frequency block code (SFBC) employing decision-feedback channel estimation (DFCE) for orthogonal frequency division multiple access (OFDMA) downlink. In the DFCE method, channel estimation accuracy is improved by using soft-symbol estimations of the control signals based on the extrinsic log-likelihood ratio (LLR) at the soft output Viterbi algorithm (SOVA) decoder output for convolutional coding in addition to reference signals (RSs). Computer simulation results that the loss in the required average received signal-to-noise power ratio (SNR) satisfying the target BLER of the DFCE from that using all the RSs within a subframe is suppressed to a slight level for control signals with SFBC in low-mobility environment.
Keyword (in Japanese) (See Japanese page) 
(in English) mobile communications / control signals / OFDMA / decision-feedback channel estimation / space-frequency block code / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 8, RCS2014-12, pp. 61-66, April 2014.
Paper # RCS2014-12 
Date of Issue 2014-04-10 (RCS) 
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)
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Conference Information
Committee RCS  
Conference Date 2014-04-17 - 2014-04-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Radio Access Technologies, etc. 
Paper Information
Registration To RCS 
Conference Code 2014-04-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance of Decision-Feedback Channel Estimation Using SFBC for TDM Based Control Signals in OFDMA Downlink 
Sub Title (in English)  
Keyword(1) mobile communications  
Keyword(2) control signals  
Keyword(3) OFDMA  
Keyword(4) decision-feedback channel estimation  
Keyword(5) space-frequency block code  
1st Author's Name Shinya Hirayama  
1st Author's Affiliation Tokyo City University (Tokyo City Univ.)
2nd Author's Name Kazuaki Takeda  
2nd Author's Affiliation NTT DOCOMO (NTT DOCOMO)
3rd Author's Name Teruo Kawamura  
3rd Author's Affiliation NTT DOCOMO (NTT DOCOMO)
4th Author's Name Mamoru Sawahashi  
4th Author's Affiliation Tokyo City University (Tokyo City Univ.)
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Date Time 2014-04-18 11:20:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2014-12 
Volume (vol) IEICE-114 
Number (no) no.8 
Page pp.61-66 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2014-04-10 

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