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| Presentation | 2022-03-11 17:55 Delay Evaluation of Fixed Backoff Method for In-Vehicle Wireless Communication Considering In-Vehicle Communication Characteristics Takumi Shiohara, Tutomu Murase (Nagoya Univ.)  CQ2021-137 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this study, we propose an in-vehicle communication propagation model for in-vehicle wireless communication using IEEE 802.11ad, which takes into account multipath and retransmissions due to obstacles in the vehicle using actual measurements from real experiments, and re-evaluate the communication delay quality of the previously proposed method C^5 [1]. In the proposed model, the error rate, which determines the probability of retransmissions, is calculated from the throughput results of actual experiments. 11ad uses a high frequency of 60 GHz, so the radio wave has high directivity and is not easily diffracted. Therefore, obstacles in the vehicle can cause retransmissions from transmission errors. Furthermore, in the narrow and metal-covered communication environment of a vehicle, multipath is extremely common, resulting in retransmissions from transmission errors. As a result, we noticed that the communication delay becomes large. The evaluation results show that the maximum delay is only 22.4% higher than the ideal free-space propagation model, and the C^5 method has a delay quality that can be used for mission-critical applications. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | IEEE 802.11ad / Wireless Harness / In-Vehicle Communication / Multipath / Obstacle / Delay / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 421, CQ2021-137, pp. 198-202, March 2022. | |
| Paper # | CQ2021-137 | |
| Date of Issue | 2022-03-02 (CQ) | |
| 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 | CQ2021-137 |
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| Conference Information | |
| Committee | CQ IMQ MVE IE |
| Conference Date | 2022-03-09 - 2022-03-11 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online (Zoom) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Media of five senses, Multimedia, Media experience, Picture codinge, Image media quality, Network,quality and reliability, etc |
| Paper Information | |
| Registration To | CQ |
| Conference Code | 2022-03-CQ-IMQ-MVE-IE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Delay Evaluation of Fixed Backoff Method for In-Vehicle Wireless Communication Considering In-Vehicle Communication Characteristics |
| Sub Title (in English) | |
| Keyword(1) | IEEE 802.11ad |
| Keyword(2) | Wireless Harness |
| Keyword(3) | In-Vehicle Communication |
| Keyword(4) | Multipath |
| Keyword(5) | Obstacle |
| Keyword(6) | Delay |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takumi Shiohara |
| 1st Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 2nd Author's Name | Tutomu Murase |
| 2nd Author's Affiliation | Nagoya University (Nagoya Univ.) |
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| Speaker | Author-1 |
| Date Time | 2022-03-11 17:55:00 |
| Presentation Time | 25 minutes |
| Registration for | CQ |
| Paper # | CQ2021-137 |
| Volume (vol) | vol.121 |
| Number (no) | no.421 |
| Page | pp.198-202 |
| #Pages | 5 |
| Date of Issue | 2022-03-02 (CQ) |
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