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Paper Abstract and Keywords
Presentation 2023-06-15 10:30
PAPR Reduction Method Utilizing Difference in Eigenvalues Among Spatial Channels in Uplink Eigenmode Massive MIMO Transmission
Yuta Abekura (Tokyo Univ. of Science), Satoshi Suyama, Satoshi Nagata (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2023-52
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we propose a peak-to-average power ratio (PAPR) reduction method utilizing difference in eigenvalues among spatial channels in uplink eigenmode massive multiple-input multiple-output (MIMO) transmission. The conventional clipping and filtering (CF) deteriorates the transmission quality of data signal due to the interference from the in-band PAPR reduction signal. In the proposed method, the in-band PAPR reduction signals are concentrated on the spatial channels with relatively small eigenvalues utilizing difference in them among spatial channels in eigenmode MIMO. The spatial channels experiencing large eigenvalues dominantly determine the data transmission performance. On the other hand, these spatial channels are weak against the interference from the in-band PAPR reduction signal. Therefore, by protecting the spatial channels experiencing large eigenvalues from the in-band PAPR reduction signal, the proposed method reduces the PAPR for the transmit signal while improving the transmission quality of the data signal compared to the conventional CF. Computer simulation results show that the proposed method improves the packet error rate (PER) of data signal after PAPR reduction compared to the conventional CF both for the case with the orthogonal frequency division multiplexing (OFDM) signal and single-carrier signal based on discrete Fourier transform (DFT)-spread OFDM.
Keyword (in Japanese) (See Japanese page) 
(in English) PAPR / Uplink / MIMO / Eigenmode MIMO / OFDM / Single carrier / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 76, RCS2023-52, pp. 141-146, June 2023.
Paper # RCS2023-52 
Date of Issue 2023-06-07 (RCS) 
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 RCS2023-52

Conference Information
Committee RCS  
Conference Date 2023-06-14 - 2023-06-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido University, and online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2023-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) PAPR Reduction Method Utilizing Difference in Eigenvalues Among Spatial Channels in Uplink Eigenmode Massive MIMO Transmission 
Sub Title (in English)  
Keyword(1) PAPR  
Keyword(2) Uplink  
Keyword(3) MIMO  
Keyword(4) Eigenmode MIMO  
Keyword(5) OFDM  
Keyword(6) Single carrier  
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Keyword(8)  
1st Author's Name Yuta Abekura  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
2nd Author's Name Satoshi Suyama  
2nd Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
3rd Author's Name Satoshi Nagata  
3rd Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
4th Author's Name Kenichi Higuchi  
4th Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
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Speaker Author-1 
Date Time 2023-06-15 10:30:00 
Presentation Time 10 minutes 
Registration for RCS 
Paper # RCS2023-52 
Volume (vol) vol.123 
Number (no) no.76 
Page pp.141-146 
#Pages 6 
Date of Issue 2023-06-07 (RCS) 

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