Paper Abstract and Keywords |
Presentation |
2020-06-25 13:25
PC-Signal-Based PAPR Reduction Using Null Space in MIMO Channel for MIMO-OFDM Signals under Frequency-Selective Fading Channel Leon Yamaguchi (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2020-36 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this paper, we propose a computational complexity-efficient algorithm for the adaptive peak-to-average power ratio (PAPR) reduction using the null space in a multiple-input multiple-output (MIMO) channel for MIMO-orthogonal frequency division multiplexing (OFDM) signals under frequency-selective fading channel. We first show that the effect of the adaptive PAPR reduction method using null space in MIMO channel is enhanced in frequency-selective fading channel. Then, we extend our previously reported peak cancellation (PC) signal-based algorithm (PCCNC) to accommodate the frequency-selective fading channel. In the proposed PCCNC, the PC signal vector is generated by multiplying basic pulse signals whose transmission band are limited to respective frequency blocks with beamforming (BF) vector directed to the null space of the MIMO channel at each of frequency blocks. By adding the averaged peak cancellation (PC) signals of each frequency block to the transmitted signal vector in the time domain, PAPR reduction is achieved. The constraint so that the PC signal is transmitted only to the null space in the MIMO channel by BF makes interference from PC signal to the data streams not observed at the receiver side. We show that the throughput-vs.-PAPR performance of the proposed method is improved as the frequency-selectivity of the channel is increased and the proposed PCCNC successfully reduces the computational complexity compared to the conventional clipping and filtering (CF)-based algorithm. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
PAPR / OFDM / MIMO / clipping and filtering / peak cancellation / computational complexity reduction / / |
Reference Info. |
IEICE Tech. Rep., vol. 120, no. 74, RCS2020-36, pp. 79-84, June 2020. |
Paper # |
RCS2020-36 |
Date of Issue |
2020-06-17 (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) |
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RCS2020-36 |
Conference Information |
Committee |
RCS |
Conference Date |
2020-06-24 - 2020-06-26 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
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 |
2020-06-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
PC-Signal-Based PAPR Reduction Using Null Space in MIMO Channel for MIMO-OFDM Signals under Frequency-Selective Fading Channel |
Sub Title (in English) |
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PAPR |
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OFDM |
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MIMO |
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clipping and filtering |
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peak cancellation |
Keyword(6) |
computational complexity reduction |
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1st Author's Name |
Leon Yamaguchi |
1st Author's Affiliation |
Tokyo University of Science (Tokyo Univ. of Science) |
2nd Author's Name |
Nobuhide Nonaka |
2nd Author's Affiliation |
NTT DOCOMO, INC. (NTT DOCOMO) |
3rd Author's Name |
Kenichi Higuchi |
3rd Author's Affiliation |
Tokyo University of Science (Tokyo Univ. of Science) |
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Speaker |
Author-1 |
Date Time |
2020-06-25 13:25:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
RCS2020-36 |
Volume (vol) |
vol.120 |
Number (no) |
no.74 |
Page |
pp.79-84 |
#Pages |
6 |
Date of Issue |
2020-06-17 (RCS) |
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