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| Presentation | 2026-03-19 14:30 Implementation of Wireless IoT devices by Collision Avoidance Method Based on the Desynchronization Phenomenon of Nonlinear Oscillators Kana Kubota, Dai Kojima (Tokyo Univ. of Science), Hiroyuki Yasuda (The Univ. of Tokyo), Song-Ju Kim (SOBIN), Ryosuke Isogai, Yoshifumi Yoshida (Seiko Future Creation), Jin Nakazato (Tokyo Univ. of Science), Maki Arai (Shibaura Inst. of Tech), Mikio Hasegawa (Tokyo Univ. of Science)  MSS2025-74 NLP2025-155 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | With the rapid proliferation of IoT, the number of networked devices is expected to increase considerably. However, sharing limited wireless channels among numerous devices causes frequent packet collisions and interference, leading to a substantial degradation in communication stability and QoS. To address this, an autonomous decentralized collision avoidance method based on inhibitory coupling of nonlinear oscillators has attracted attention as an effective solution. In this method, each device calculates the phase difference between oscillators from the transmission timings of other devices detected during a listening period, and autonomously adjusts its own transmission timing through interactions based on the computed phase differences to achieve collision avoidance. In this paper, we focus on a linear function with a negative slope as the coupling function that determines these interactions, which suppresses phase fluctuations in the Desynchronization state. In this study, we introduce a novel parameter that controls the slope of this function to improve performance, and demonstrate through hardware implementation on Lazurite that it contributes to enhancing operational stability. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | IoT / nonlinear oscillator / collision avoidance / utonomous decentralized control / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 125, no. 418, NLP2025-155, pp. 145-149, March 2026. | |
| Paper # | NLP2025-155 | |
| Date of Issue | 2026-03-11 (MSS, NLP) | |
| 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 | MSS2025-74 NLP2025-155 |
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| Conference Information | |
| Committee | MSS NLP |
| Conference Date | 2026-03-18 - 2026-03-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | NLP |
| Conference Code | 2026-03-MSS-NLP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Implementation of Wireless IoT devices by Collision Avoidance Method Based on the Desynchronization Phenomenon of Nonlinear Oscillators |
| Sub Title (in English) | |
| Keyword(1) | IoT |
| Keyword(2) | nonlinear oscillator |
| Keyword(3) | collision avoidance |
| Keyword(4) | utonomous decentralized control |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kana Kubota |
| 1st Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 2nd Author's Name | Dai Kojima |
| 2nd Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 3rd Author's Name | Hiroyuki Yasuda |
| 3rd Author's Affiliation | The University of Tokyo (The Univ. of Tokyo) |
| 4th Author's Name | Song-Ju Kim |
| 4th Author's Affiliation | SOBIN Institute LLC (SOBIN) |
| 5th Author's Name | Ryosuke Isogai |
| 5th Author's Affiliation | Seiko Future Creation Inc. (Seiko Future Creation) |
| 6th Author's Name | Yoshifumi Yoshida |
| 6th Author's Affiliation | Seiko Future Creation Inc. (Seiko Future Creation) |
| 7th Author's Name | Jin Nakazato |
| 7th Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 8th Author's Name | Maki Arai |
| 8th Author's Affiliation | Shibaura Institute of Technology (Shibaura Inst. of Tech) |
| 9th Author's Name | Mikio Hasegawa |
| 9th Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| Speaker | Author-1 |
| Date Time | 2026-03-19 14:30:00 |
| Presentation Time | 20 minutes |
| Registration for | NLP |
| Paper # | MSS2025-74, NLP2025-155 |
| Volume (vol) | vol.125 |
| Number (no) | no.417(MSS), no.418(NLP) |
| Page | pp.145-149 |
| #Pages | 5 |
| Date of Issue | 2026-03-11 (MSS, NLP) |
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