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| Presentation | 2020-03-04 11:35 Improving In-Band Full-Duplex Capacity by Transmitter Nonlinearization using Digital Predistortion Chua Teong Zhe, Kazuki Komatsu, Yuichi Miyaji, Hideyuki Uehara (Toyohashi Univ. of Tech.)  RCS2019-338 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In-band full-duplex (IBFD) is expected to have higher throughput or spectral efficiency compared to conventional wireless communication schemes. However, as IBFD uses the same frequency band to transmit and receive at the same time, the transmitted signal of a device is received as self-interference (SI) at the same device. In order to realize IBFD systems, SI must be cancelled sufficiently so that the desired signal from the communicating device can be demodulated correctly. In this technical report, we focus on SI cancellation in the digital domain and propose the introduction of transmitter nonlinearities using digital predistortion in order to improve the self-interference cancellation ratio of Hammerstein cancellers and consequently the full-duplex capacity of IBFD systems. Simulation results show that coupling a fifth order Hammerstein canceller with a nonlinearizing predistorter increases the self-interference cancellation ratio and the full-duplex capacity of the system when compared to the case of coupling with a linearizing predistorter or when there is no predistorter. We also show the potential to further increase full-duplex capacity by operating the transmitter at a lower backoff, but at the cost of increasing the nonlinear components of the transmitted signal. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | In-band full-duplex / transmitter nonlinearities / digital predistortion / Hammerstein canceller / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 448, RCS2019-338, pp. 99-104, March 2020. | |
| Paper # | RCS2019-338 | |
| Date of Issue | 2020-02-26 (RCS) | |
| ISSN | Print edition: ISSN 0913-5685 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 | RCS2019-338 |
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| Conference Information | |
| Committee | RCS SR SRW |
| Conference Date | 2020-03-04 - 2020-03-06 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2020-03-RCS-SR-SRW |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improving In-Band Full-Duplex Capacity by Transmitter Nonlinearization using Digital Predistortion |
| Sub Title (in English) | |
| Keyword(1) | In-band full-duplex |
| Keyword(2) | transmitter nonlinearities |
| Keyword(3) | digital predistortion |
| Keyword(4) | Hammerstein canceller |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Chua Teong Zhe |
| 1st Author's Affiliation | Toyohashi University of Technology (Toyohashi Univ. of Tech.) |
| 2nd Author's Name | Kazuki Komatsu |
| 2nd Author's Affiliation | Toyohashi University of Technology (Toyohashi Univ. of Tech.) |
| 3rd Author's Name | Yuichi Miyaji |
| 3rd Author's Affiliation | Toyohashi University of Technology (Toyohashi Univ. of Tech.) |
| 4th Author's Name | Hideyuki Uehara |
| 4th Author's Affiliation | Toyohashi University of Technology (Toyohashi Univ. of Tech.) |
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| Speaker | 1 |
| Date Time | 2020-03-04 11:35:00 |
| Presentation Time | 20 |
| Registration for | RCS |
| Paper # | IEICE-RCS2019-338 |
| Volume (vol) | IEICE-119 |
| Number (no) | no.448 |
| Page | pp.99-104 |
| #Pages | IEICE-6 |
| Date of Issue | IEICE-RCS-2020-02-26 |
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