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Paper Abstract and Keywords
Presentation 2018-10-19 13:55
[Invited Lecture] Analysis on the Performance of Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for Massive MIMO-OFDM Signals
Kenichi Higuchi (Tokyo Univ. of Science) RCS2018-172
Abstract (in Japanese) (See Japanese page) 
(in English) This paper analyzes the impact of the applied beamforming (BF) method on the performance of our previously reported adaptive peak-to-average power ratio (PAPR) reduction method using the null space in multiple-input multiple-output (MIMO) channel for MIMO-orthogonal frequency division multiplexing (OFDM) signals. The adaptive PAPR reduction method using null space in MIMO channel can mitigate the data throughput degradation due to the interference from the PAPR reduction signal generated by the clipping and filtering (CF) algorithm, by restricting the transmission of PAPR reduction signal only to the null space in MIMO channel. Our previous investigation quantitatively revealed that the effect of the proposed PAPR reduction method is large when eigenmode MIMO is used as BF method compared to the case where zero forcing (ZF)-based BF is applied. Furthermore, the use of frequency-selective BF, where different BF matrices are applied to different frequency blocks, increases the performance gain of the proposed PAPR reduction method. This paper investigated several reasons for these phenomena, and discuss appropriate BF strategy to enhance the effect of the adaptive PAPR reduction method using null space in MIMO channel.
Keyword (in Japanese) (See Japanese page) 
(in English) PAPR / OFDM / MIMO / Massive MIMO / Beamforming / Clipping and filtering / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 254, RCS2018-172, pp. 115-120, Oct. 2018.
Paper # RCS2018-172 
Date of Issue 2018-10-11 (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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF RCS2018-172

Conference Information
Committee RCS  
Conference Date 2018-10-18 - 2018-10-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2018-10-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analysis on the Performance of Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for Massive MIMO-OFDM Signals 
Sub Title (in English)  
Keyword(1) PAPR  
Keyword(2) OFDM  
Keyword(3) MIMO  
Keyword(4) Massive MIMO  
Keyword(5) Beamforming  
Keyword(6) Clipping and filtering  
1st Author's Name Kenichi Higuchi  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
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Date Time 2018-10-19 13:55:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2018-172 
Volume (vol) IEICE-118 
Number (no) no.254 
Page pp.115-120 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2018-10-11 

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