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Paper Abstract and Keywords
Presentation 2018-03-13 09:20
A Proposal of Orthogonal Precoded DFT-s-OFDM for Spectrum Sharing
Hikaru Kawasaki, Kentaro Ishizu, Fumihide Kojima (NICT) CAS2017-146 CS2017-100
Abstract (in Japanese) (See Japanese page) 
(in English) DFT-s-OFDM has been adopted in the 4G LTE uplink which is induced by DFT-precoding to reduce high peak-to-average-power ratio (PAPR) of usual OFDM signals, on the other hand, its high spectral sidelobes remain, resulting in high out-of-band emission (OOBE). This paper proposes a novel precoding scheme named as orthogonal precoded DFT-s-OFDM for spectrum sharing by applying the idea of orthogonal precoding proposed for OOBE suppression of OFDM signals. Numerical experiments show that its OOBE is suppressed effectively by about 30 dB in LTE systems of bandwidth 1.4 MHz and 10 MHz as reserving all advantages of orthogonal precoding although it causes an acceptable penalty in the PAPR reduction of DFT-s-OFDM.
Keyword (in Japanese) (See Japanese page) 
(in English) Out-of-band emission suppression / DFT-s-OFDM / Spectrum Sharing in Dynamic Spectrum Access / / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 504, CS2017-100, pp. 75-80, March 2018.
Paper # CS2017-100 
Date of Issue 2018-03-05 (CAS, CS) 
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 CAS2017-146 CS2017-100

Conference Information
Committee CS CAS  
Conference Date 2018-03-12 - 2018-03-13 
Place (in Japanese) (See Japanese page) 
Place (in English) Nishijin Plaza, Kyushu University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network processor, Signal processing and circuits for communications, Wireless LAN / PAN, etc. 
Paper Information
Registration To CS 
Conference Code 2018-03-CS-CAS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Proposal of Orthogonal Precoded DFT-s-OFDM for Spectrum Sharing 
Sub Title (in English)  
Keyword(1) Out-of-band emission suppression  
Keyword(2) DFT-s-OFDM  
Keyword(3) Spectrum Sharing in Dynamic Spectrum Access  
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1st Author's Name Hikaru Kawasaki  
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)
2nd Author's Name Kentaro Ishizu  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
3rd Author's Name Fumihide Kojima  
3rd Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker Author-1 
Date Time 2018-03-13 09:20:00 
Presentation Time 25 minutes 
Registration for CS 
Paper # CAS2017-146, CS2017-100 
Volume (vol) vol.117 
Number (no) no.503(CAS), no.504(CS) 
Page pp.75-80 
#Pages 6 
Date of Issue 2018-03-05 (CAS, CS) 

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