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| Presentation | 2018-01-18 15:15 [Encouragement Talk] IoTorch: Intuitive, Fast LED-to-Camera Communication for IoT Devices and Smartphones Yuki Hokazono, Aoi Koizuka, Makoto Suzuki, Yoshiaki Narusue, Hiroyuki Morikawa (Tokyo Univ.)  MoNA2017-45 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we present IoTorch, a fast and reliable LED-to-camera communication for smartphones. LED-to-camera communication allows intuitive data transfer by simply holding a smartphone's camera over an LED. This communication also allows low-cost and small-size implementation owing to the use of small LED. However, in communication using the rolling shutter effect, packet losses due to inter-frame gaps and frame drops make it unsuitable for large data transfer. IoTorch consists of two core mechanisms: 1) a packet retransmission strategy focusing on periodicity of inter-frame gaps, and 2) an ACK mechanism against frame drops using a smartphone's built-in flash focusing on its delay characteristic. The experimental results using multiple smartphone models show that IoTorch can enable fast and reliable communication exceeding 1~kbps regardless of the models. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | LED-to-Camera Communication for Smartphones / Rolling Shutter Effect / Visible Light Communication / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 390, MoNA2017-45, pp. 25-25, Jan. 2018. | |
| Paper # | MoNA2017-45 | |
| Date of Issue | 2018-01-11 (MoNA) | |
| 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 | MoNA2017-45 |
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| Conference Information | |
| Committee | MoNA |
| Conference Date | 2018-01-18 - 2018-01-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Campus Plaza Kyoto |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Network, Application of Machine Learning, Mobile Data, etc. |
| Paper Information | |
| Registration To | MoNA |
| Conference Code | 2018-01-MoNA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | IoTorch: Intuitive, Fast LED-to-Camera Communication for IoT Devices and Smartphones |
| Sub Title (in English) | |
| Keyword(1) | LED-to-Camera Communication for Smartphones |
| Keyword(2) | Rolling Shutter Effect |
| Keyword(3) | Visible Light Communication |
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| 1st Author's Name | Yuki Hokazono |
| 1st Author's Affiliation | Tokyo University (Tokyo Univ.) |
| 2nd Author's Name | Aoi Koizuka |
| 2nd Author's Affiliation | Tokyo University (Tokyo Univ.) |
| 3rd Author's Name | Makoto Suzuki |
| 3rd Author's Affiliation | Tokyo University (Tokyo Univ.) |
| 4th Author's Name | Yoshiaki Narusue |
| 4th Author's Affiliation | Tokyo University (Tokyo Univ.) |
| 5th Author's Name | Hiroyuki Morikawa |
| 5th Author's Affiliation | Tokyo University (Tokyo Univ.) |
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| Speaker | Author-1 |
| Date Time | 2018-01-18 15:15:00 |
| Presentation Time | 25 minutes |
| Registration for | MoNA |
| Paper # | MoNA2017-45 |
| Volume (vol) | vol.117 |
| Number (no) | no.390 |
| Page | p.25 |
| #Pages | 1 |
| Date of Issue | 2018-01-11 (MoNA) |
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