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Paper Abstract and Keywords
Presentation 2011-08-26 13:00
Effect of Intra-subframe Frequency Hopping on Closed-Loop Type Transmit Diversity with Precoding for Uplink DFT-Precoded OFDMA
Lianjun Deng (Tokyo City Univ.), Teruo Kawamura (NTT DOCOMO), Hidekazu Taoka (DOCOMO Europe Labs.), Mamoru Sawahashi (Tokyo City Univ.) RCS2011-128
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes applying intra-subframe frequency hopping (FH) to closed-loop (CL) type transmit diversity using codebook based precoding for a shared channel carrying user traffic data in the uplink discrete Fourier transform (DFT)-precoded Orthogonal Frequency Division Multiple Access (OFDMA). In the paper, we present two types of precoding schemes associated with intra-subframe FH: individual precoding vector selection between 2 slots where a 1-msec subframe comprises 2 slots among the reduced precoding codebooks, and common precoding vector selection between 2 slots. We investigate the effect of intra-subframe FH on the CL type transmit diversity with precoding in terms of the block error rate (BLER) performance while maintaining the same number of feedback bits required for notification of the selected precoding vector as that for CL type precoding based transmit diversity without FH. Computer simulation results show that CL type transmit diversity with precoding using intra-subframe FH is very effective in reducing the required average received signal-to-noise power ratio (SNR) when the fading maximum Dop
Keyword (in Japanese) (See Japanese page) 
(in English) Mobile communications / Single-carrier FDMA / Transmit diversity / Precoding / Frequency hopping / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 180, RCS2011-128, pp. 93-98, Aug. 2011.
Paper # RCS2011-128 
Date of Issue 2011-08-18 (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 SAT  
Conference Date 2011-08-25 - 2011-08-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Niigata Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Special session on coding techniques, Mobile Satellite Communications, Broadcasting, Error Correction, Wireless Communication Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2011-08-RCS-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Effect of Intra-subframe Frequency Hopping on Closed-Loop Type Transmit Diversity with Precoding for Uplink DFT-Precoded OFDMA 
Sub Title (in English)  
Keyword(1) Mobile communications  
Keyword(2) Single-carrier FDMA  
Keyword(3) Transmit diversity  
Keyword(4) Precoding  
Keyword(5) Frequency hopping  
1st Author's Name Lianjun Deng  
1st Author's Affiliation Tokyo City University (Tokyo City Univ.)
2nd Author's Name Teruo Kawamura  
2nd Author's Affiliation NTT DOCOMO (NTT DOCOMO)
3rd Author's Name Hidekazu Taoka  
3rd Author's Affiliation DOCOMO Communications Laboratories Europe GmbH (DOCOMO Europe Labs.)
4th Author's Name Mamoru Sawahashi  
4th Author's Affiliation Tokyo City University (Tokyo City Univ.)
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Date Time 2011-08-26 13:00:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2011-128 
Volume (vol) IEICE-111 
Number (no) no.180 
Page pp.93-98 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2011-08-18 

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