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| Presentation | 2019-06-21 15:25 Complexity-Reduced Algorithm for Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals Mikihito Suzuki, Taku Suzuki (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)  RCS2019-97 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we propose a computational complexity-reduced algorithm for our previously reported adaptive peak-to-average power ratio (PAPR) reduction method using null space of multiple-input multiple-output (MIMO) channel for MIMO-orthogonal frequency division multiplexing (OFDM) signals. In the previous studies, we assumed an iterative clipping and filtering (CF) and projection of the peak reduction signal generated by the CF operation onto the null space in MIMO channel. However, since the fast Fourier transform (FFT) and inverse fast Fourier transform (IFFT) processes are included in each iteration of this algorithm, a reduction in computational complexity has been an issue to be solved. The proposed computational complexity-reduced algorithm is an extension of the peak cancellation signal-based method which is mainly investigated per antenna PAPR reduction. This method adds the peak cancellation signal, which is designed so that the out-band emission is removed/reduced, directly to the time-domain transmission signal at each antenna. By introducing the constraint so that the peak cancellation signal is transmitted only to the null space in MIMO channel, the proposed method achieves approximately the same PAPR-throughput performance as in the original method while the required computational cost is dramatically reduced. | |
| 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. 119, no. 90, RCS2019-97, pp. 353-358, June 2019. | |
| Paper # | RCS2019-97 | |
| Date of Issue | 2019-06-12 (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 | RCS2019-97 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2019-06-19 - 2019-06-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Miyakojima Hirara Port Terminal Building |
| 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 | 2019-06-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Complexity-Reduced Algorithm for Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals |
| Sub Title (in English) | |
| Keyword(1) | PAPR |
| Keyword(2) | OFDM |
| Keyword(3) | MIMO |
| Keyword(4) | clipping and filtering |
| Keyword(5) | peak cancellation |
| Keyword(6) | computational complexity reduction |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Mikihito Suzuki |
| 1st Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 2nd Author's Name | Taku Suzuki |
| 2nd Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 3rd Author's Name | Yoshihisa Kishiyama |
| 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 | 2019-06-21 15:25:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2019-97 |
| Volume (vol) | vol.119 |
| Number (no) | no.90 |
| Page | pp.353-358 |
| #Pages | 6 |
| Date of Issue | 2019-06-12 (RCS) |
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