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| Presentation | 2022-01-20 10:55 Terrestrial Acoustic Communications Employing Transmit Precoding and Channel Interpolation Katsuyoshi Yamamoto, Hiroshi Kubo (Ritsumeikan Univ.)  IT2021-31 SIP2021-39 RCS2021-199 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes 72kbps terrestrial acoustic communications (TRAC) using commercial acoustic electronic equipment and confirms their effectiveness by means of experimental results. TRACs suffer from both doubly-selective channels, and low transmission information bit rate due to slow propagation speed of sound, where time selectivity and frequency selectivity occur simultaneously. In order to solve these issues, this paper discusses TRACs with the following three features: 1) they employ single carrier block transmission with frequency domain equalization using quadrature amplitude modulation (QAM); 2) they compensate distortion of frequency response due to speaker thanks to transmit precoding; 3) they improve tracking capability of mobile environments thanks to channel interpolation. Finally, experimental results confirm that the proposed TRAC can achieve 72kbps transmission information bit rate with a communication distance of 1m under hand-held conditions. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Acoustic Communications / Doubly-Selective Channels / Single Carrier Block Transmission / Channel Interpolation / Frequency Domain Equalization / Transmit Precoding / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 329, RCS2021-199, pp. 18-23, Jan. 2022. | |
| Paper # | RCS2021-199 | |
| Date of Issue | 2022-01-13 (IT, SIP, 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 | IT2021-31 SIP2021-39 RCS2021-199 |
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| Conference Information | |
| Committee | RCS SIP IT |
| Conference Date | 2022-01-20 - 2022-01-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2022-01-RCS-SIP-IT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Terrestrial Acoustic Communications Employing Transmit Precoding and Channel Interpolation |
| Sub Title (in English) | |
| Keyword(1) | Acoustic Communications |
| Keyword(2) | Doubly-Selective Channels |
| Keyword(3) | Single Carrier Block Transmission |
| Keyword(4) | Channel Interpolation |
| Keyword(5) | Frequency Domain Equalization |
| Keyword(6) | Transmit Precoding |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Katsuyoshi Yamamoto |
| 1st Author's Affiliation | Ritsumeikan University (Ritsumeikan Univ.) |
| 2nd Author's Name | Hiroshi Kubo |
| 2nd Author's Affiliation | Ritsumeikan University (Ritsumeikan Univ.) |
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| Speaker | Author-1 |
| Date Time | 2022-01-20 10:55:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | IT2021-31, SIP2021-39, RCS2021-199 |
| Volume (vol) | vol.121 |
| Number (no) | no.327(IT), no.328(SIP), no.329(RCS) |
| Page | pp.18-23 |
| #Pages | 6 |
| Date of Issue | 2022-01-13 (IT, SIP, RCS) |
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