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Paper Abstract and Keywords
Presentation 2008-01-25 11:20
Channel Estimation Scheme for MIMO-STBC Systems using Bi-directional Decision Feedback
Keiichiro Hayakawa, Katsushi Sanda, Nobuo Itoh (TOYOTA CRDL), Hirotake Ishigami, Yasunori Iwanami, Eiji Okamoto (Nagoya Inst. of Tech) SIP2007-170 RCS2007-173
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, extremely high-reliability systems are desired for inter-vehicle communications. In the environmental of inter-vehicle communications, channel states between transmitter and receiver change intensively, because of the motion of cars in various surroundings. So we have to estimate and utilize the channel state information accurately. In this paper, we have proposed the channel state information scheme for MIMO-STBC systems, using bi-directional decision feedback. In the proposed scheme, inverse decision feedback scheme, in which the past channel states are estimated from present received data, are applied to estimate channel states in addition to ordinary decision feedback scheme, in which the present channel states are estimated from past received data. Those two estimated channel states are compared and the one which is more reliable is used for STBC decoding. Three methods for calculating the reliability of channel state estimation have been proposed and effectiveness of the proposed channel estimation scheme has been made clear through computer simulation results.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO / STBC / Decision Feedback / Channel State Estimation / Mobile Communication / ITS / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 441, RCS2007-173, pp. 73-78, Jan. 2008.
Paper # RCS2007-173 
Date of Issue 2008-01-18 (SIP, 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)
Download PDF SIP2007-170 RCS2007-173

Conference Information
Committee RCS SIP  
Conference Date 2008-01-24 - 2008-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Hiroshima City Uni. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2008-01-RCS-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Channel Estimation Scheme for MIMO-STBC Systems using Bi-directional Decision Feedback 
Sub Title (in English)  
Keyword(1) MIMO  
Keyword(2) STBC  
Keyword(3) Decision Feedback  
Keyword(4) Channel State Estimation  
Keyword(5) Mobile Communication  
Keyword(6) ITS  
Keyword(7)  
Keyword(8)  
1st Author's Name Keiichiro Hayakawa  
1st Author's Affiliation Toyota Central R&D Labs., INC. (TOYOTA CRDL)
2nd Author's Name Katsushi Sanda  
2nd Author's Affiliation Toyota Central R&D Labs., INC. (TOYOTA CRDL)
3rd Author's Name Nobuo Itoh  
3rd Author's Affiliation Toyota Central R&D Labs., INC. (TOYOTA CRDL)
4th Author's Name Hirotake Ishigami  
4th Author's Affiliation Nagoya Institute of Technology (Nagoya Inst. of Tech)
5th Author's Name Yasunori Iwanami  
5th Author's Affiliation Nagoya Institute of Technology (Nagoya Inst. of Tech)
6th Author's Name Eiji Okamoto  
6th Author's Affiliation Nagoya Institute of Technology (Nagoya Inst. of Tech)
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Speaker Author-1 
Date Time 2008-01-25 11:20:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # SIP2007-170, RCS2007-173 
Volume (vol) vol.107 
Number (no) no.439(SIP), no.441(RCS) 
Page pp.73-78 
#Pages 6 
Date of Issue 2008-01-18 (SIP, RCS) 

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