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Paper Abstract and Keywords
Presentation 2007-01-26 09:25
BER Performance Improvement of STTD for MC-CDMA using Overlap FDE
Hiromichi Tomeba, Kazuaki Takeda, Fumiyuki Adachi (Tohoku Univ.) SIP2006-160 RCS2006-218
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, multi-carrier code division multiple access (MC-CDMA) has been attracting much attention as a broadband wireless access technique for the next generation mobile communications systems. Frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion can take advantage of the channel frequency-selectivity and improve the average bit error rate (BER) performance due to frequency-diversity gain. Conventional FDE requires the insertion of guard interval (GI) which reduces the transmission efficiency. Overlap FDE technique requires no GI insertion and hence, does not reduce the transmission efficiency. Antenna diversity is an effective technique to improve the transmission performance. Space-time transmit diversity (STTD) is suitable for the downlink transmission. In the case of conventional FDE, STTD decoding can easily be combined with FDE. However, combining STTD decoding and overlap FDE is not straightforward. In this paper, we propose a technique to combine STTD decoding and overlap FDE for the MC-CDMA transmission and then, its BER performance is evaluated by computer simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) Frequency-selective fading channe / Overlap FDE / STTD / MC-CDMA / / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 480, RCS2006-218, pp. 13-17, Jan. 2007.
Paper # RCS2006-218 
Date of Issue 2007-01-19 (SIP, RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 SIP2006-160 RCS2006-218

Conference Information
Committee RCS SIP  
Conference Date 2007-01-24 - 2007-01-26 
Place (in Japanese) (See Japanese page) 
Place (in English) NICT Okinawa 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2007-01-RCS-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) BER Performance Improvement of STTD for MC-CDMA using Overlap FDE 
Sub Title (in English)  
Keyword(1) Frequency-selective fading channe  
Keyword(2) Overlap FDE  
Keyword(3) STTD  
Keyword(4) MC-CDMA  
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1st Author's Name Hiromichi Tomeba  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Kazuaki Takeda  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Fumiyuki Adachi  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2007-01-26 09:25:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # SIP2006-160, RCS2006-218 
Volume (vol) vol.106 
Number (no) no.477(SIP), no.480(RCS) 
Page pp.13-17 
#Pages 5 
Date of Issue 2007-01-19 (SIP, RCS) 

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