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Paper Abstract and Keywords
Presentation 2023-07-28 14:30
A Precoding Scheme to Suppress both Out-of-Band Emission and Peak Power of OFDM Signals using Trapezoidal Block Householder Reflector
Hikaru Kawasaki, Takeshi Matsumura (NICT) CS2023-57
Abstract (in Japanese) (See Japanese page) 
(in English) The authors have proposed a trapezoidal block Householder reflector (TBHR) to represent a unitary matrix in orthonormalization efficiently. The TBHR can save storage overheads compared to the conventional compact WY representation, and derive a solution to a specific orthogonal Procrustes problem as comparable properties to the orthogonal projection and pseudo-inverse matrix. As one of the applications in the wireless communications field, this study proposes a precoding scheme to suppress out-of-band emission (OOBE) and peak power of orthogonal frequency-division multiplexing (OFDM) signals simultaneously using the TBHR. The use of the TBHR guarantees these suppressions theoretically in the sense of the orthogonal Procrustes problem. Numerical experiments confirm that the proposed method can suppress the OOBE and peak power of the OFDM signals simultaneously without error-rate degradation and with practical computational complexity.
Keyword (in Japanese) (See Japanese page) 
(in English) orthonormlization / Householder transformation / precoding / out-of-band emission suppression / peak power suppression / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 137, CS2023-57, pp. 157-162, July 2023.
Paper # CS2023-57 
Date of Issue 2023-07-20 (CS) 
ISSN 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 CS2023-57

Conference Information
Committee CS  
Conference Date 2023-07-27 - 2023-07-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Hachijo-machi Chamber of Commerce and Industry 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Next Generation Networks, Access Networks, Broadband Access, Power Line Communications, Wireless Communication Systems, Coding Systems, etc. 
Paper Information
Registration To CS 
Conference Code 2023-07-CS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Precoding Scheme to Suppress both Out-of-Band Emission and Peak Power of OFDM Signals using Trapezoidal Block Householder Reflector 
Sub Title (in English)  
Keyword(1) orthonormlization  
Keyword(2) Householder transformation  
Keyword(3) precoding  
Keyword(4) out-of-band emission suppression  
Keyword(5) peak power suppression  
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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 Takeshi Matsumura  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker Author-1 
Date Time 2023-07-28 14:30:00 
Presentation Time 20 minutes 
Registration for CS 
Paper # CS2023-57 
Volume (vol) vol.123 
Number (no) no.137 
Page pp.157-162 
#Pages 6 
Date of Issue 2023-07-20 (CS) 

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