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Paper Abstract and Keywords
Presentation 2007-12-20 14:20
Adaptive array antenna system with the compensation for the Doppler Shift in SOFDM
Junpei Takagi, Toshihiro Furukawa (Tokyo Univ. of Science) RCS2007-115
Abstract (in Japanese) (See Japanese page) 
(in English) In the OFDM transmission system , the influence by the delay wave and the Doppler shift causes rapid degradation of a digital signal under the environment of the high-speed mobile communication.To solve this problem, the system that suppresses delay wave by using adaptive array and the SOFDM that reduces the influence of the Doppler shift are proposed.The MMSE adaptive array antenna using what head and end of the OFDM symbol are the same signals has already been known. In this paper, the application of the system to the SOFDM is tried as the purpose of suppressing the influence of Doppler shift for improvement of demodulation accuracy.In addition, we propose the adaptive array antenna system with the compensation for the frequency offset by estimating the Doppler frequency physically. This system is achieved by exchanging information on coming corner of signal between the adjoining base stations. The effectiveness of the proposal system is confirmed by the computer simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) OFDM / SOFDM / adaptive array antenna / MMSE / Doppler shift / frequency offset / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 402, RCS2007-115, pp. 19-24, Dec. 2007.
Paper # RCS2007-115 
Date of Issue 2007-12-13 (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 RCS2007-115

Conference Information
Committee RCS SAT  
Conference Date 2007-12-20 - 2007-12-21 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2007-12-RCS-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Adaptive array antenna system with the compensation for the Doppler Shift in SOFDM 
Sub Title (in English)  
Keyword(1) OFDM  
Keyword(2) SOFDM  
Keyword(3) adaptive array antenna  
Keyword(4) MMSE  
Keyword(5) Doppler shift  
Keyword(6) frequency offset  
Keyword(7)  
Keyword(8)  
1st Author's Name Junpei Takagi  
1st Author's Affiliation Tokyo Univercity of Science (Tokyo Univ. of Science)
2nd Author's Name Toshihiro Furukawa  
2nd Author's Affiliation Tokyo Univercity of Science (Tokyo Univ. of Science)
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Speaker Author-1 
Date Time 2007-12-20 14:20:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2007-115 
Volume (vol) vol.107 
Number (no) no.402 
Page pp.19-24 
#Pages 6 
Date of Issue 2007-12-13 (RCS) 

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