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| Presentation | 2018-03-02 15:45 Rate Maximization via Probabilistic Constellation Shaping in AWGN Channels with Non-linear Distortion Hiroki Iimori, Giuseppe Thadeu Freitas de Abreu (Ritsumeikan Uni.)  RCS2017-401 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | It is well known that distortion in wireless transmit signals occurs due to the non-linearity of power amplifiers. The typical cost of wireless hardware and the relatively large distances between devices allowed for such distortion to be thus far widely neglected in the wireless literature. However, recent paradigm shifting trends point to high-density networks of extreme low-cost devices. In this article we therefore target the problem of non-linear distortion in the transmit wireless signals, which is known to be adequately modelled by non-linear noise with power proportional to the energy of transmit symbols. Specifically, we propose a probabilistic constellation shaping technique in which the discrete MB distribution is employed to build the optimization problem for the maximization of the mutual information between transmit and receive signals, which is efficiently achieved via a golden section method. The approach is validated via simulated comparisons against systems employing conventional constellations. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Mutual information / non-linear distortion / probabilistic shaping / convex optimization / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 456, RCS2017-401, pp. 459-464, Feb. 2018. | |
| Paper # | RCS2017-401 | |
| Date of Issue | 2018-02-21 (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 | RCS2017-401 |
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| Conference Information | |
| Committee | RCS SR SRW |
| Conference Date | 2018-02-28 - 2018-03-02 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2018-02-RCS-SR-SRW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Rate Maximization via Probabilistic Constellation Shaping in AWGN Channels with Non-linear Distortion |
| Sub Title (in English) | |
| Keyword(1) | Mutual information |
| Keyword(2) | non-linear distortion |
| Keyword(3) | probabilistic shaping |
| Keyword(4) | convex optimization |
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| 1st Author's Name | Hiroki Iimori |
| 1st Author's Affiliation | Ritsumeikan University (Ritsumeikan Uni.) |
| 2nd Author's Name | Giuseppe Thadeu Freitas de Abreu |
| 2nd Author's Affiliation | Ritsumeikan University (Ritsumeikan Uni.) |
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| Speaker | Author-1 |
| Date Time | 2018-03-02 15:45:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2017-401 |
| Volume (vol) | vol.117 |
| Number (no) | no.456 |
| Page | pp.459-464 |
| #Pages | 6 |
| Date of Issue | 2018-02-21 (RCS) |
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