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| Presentation | 2021-11-05 13:50 Millimeter-Wave WBAN Fairness Improvement Method by Back-off Control Using Busy-Time Ratio Tsukasa Chida (Tohoku Univ.), Suguru Kameda (Hiroshima Univ.), Noriharu Suematsu (Tohoku Univ.)  SR2021-56 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Wireless Body Area Network (WBAN) using the millimeter-wave (mmW) band (60-GHz band) is expected to be one of the methods to solve the interference problem between WBANs. In mmW WBAN, the number of users who receive interference varies due to the linearity and attenuation characteristics of mmW. Thus, the fairness of communication opportunities is degraded. In this paper, we propose a Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) based fairness communication opportunity method that uses the contention window (CW) controlled by using busy-time length before intra-WBAN communication. First, inter-WBAN interference in the case of microwaves or millimeter waves was investigated. This investigation showed the unfairness of communication opportunities in the case of mmW is larger than that of microwave. Next, we evaluated the proposed inter-WBAN interference avoidance method. As a result of evaluation of the communication time rate and fairness index by computer simulation, it is shown that the fairness of WBAN communication can be significantly improved with minimized degradation of the communication time rate. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | millimeter-wave / CSMA/CA / inter-WBAN interference / human body blocking / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 227, SR2021-56, pp. 91-97, Nov. 2021. | |
| Paper # | SR2021-56 | |
| Date of Issue | 2021-10-28 (SR) | |
| 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 | SR2021-56 |
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| Conference Information | |
| Committee | SR |
| Conference Date | 2021-11-04 - 2021-11-05 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Software Defined Radio, Cognitive Radio, Spectrum Shareing, etc. |
| Paper Information | |
| Registration To | SR |
| Conference Code | 2021-11-SR |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Millimeter-Wave WBAN Fairness Improvement Method by Back-off Control Using Busy-Time Ratio |
| Sub Title (in English) | |
| Keyword(1) | millimeter-wave |
| Keyword(2) | CSMA/CA |
| Keyword(3) | inter-WBAN interference |
| Keyword(4) | human body blocking |
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| 1st Author's Name | Tsukasa Chida |
| 1st Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 2nd Author's Name | Suguru Kameda |
| 2nd Author's Affiliation | Hiroshima University (Hiroshima Univ.) |
| 3rd Author's Name | Noriharu Suematsu |
| 3rd Author's Affiliation | Tohoku University (Tohoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2021-11-05 13:50:00 |
| Presentation Time | 25 minutes |
| Registration for | SR |
| Paper # | SR2021-56 |
| Volume (vol) | vol.121 |
| Number (no) | no.227 |
| Page | pp.91-97 |
| #Pages | 7 |
| Date of Issue | 2021-10-28 (SR) |
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