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| Presentation | 2017-03-03 13:50 Verification of Precise of Clock Synchronization using IEEE 1588 in Network Composed of Ordinary Routers Koki Horita (Keio Univ.), Shota Shiobara, Takao Okamawari (Softbank), Fumio Teraoka, Kunitake Kaneko (Keio Univ.)  SITE2016-62 IA2016-92 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In these days, demands for highly precise clock synchronization have been increasing. IEEE1588 (PTP), which aims for sub-microseconds levels of clock synchronization on a network, is featured in various area. Time error of clock synchronization using network is caused by various factors. Without examining characteristic of implicating factor, it is not possible to build a precise clock synchronization network. This paper focused on packet delay varia- tion (PDV) on network equipment, which is considered as a major factor implicating the accuracy, and measured a time error of IEEE1588 on ordinary routers. We generated background traffic, which increases variation of delay in routers, and the accuracy is evaluated by 3 metrics: Accuracy, Precision, Stability. This paper showed the accuracy is not impacted by background traffic when the number of routes was one. In situation that the number of routers was more than two, the accuracy was implicated by background traffic; when there were 5 routers between master and slave clock, its accuracy was 1.5 microseconds. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | IEEE1588 / Clock synchronization / Time Error / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 491, IA2016-92, pp. 13-18, March 2017. | |
| Paper # | IA2016-92 | |
| Date of Issue | 2017-02-24 (SITE, IA) | |
| 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 | SITE2016-62 IA2016-92 |
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| Conference Information | |
| Committee | IA SITE IPSJ-IOT |
| Conference Date | 2017-03-03 - 2017-03-04 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Culture Resort Festone (Okinawa) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Internet and Information Ethics Education, etc. |
| Paper Information | |
| Registration To | IA |
| Conference Code | 2017-03-IA-SITE-IOT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Verification of Precise of Clock Synchronization using IEEE 1588 in Network Composed of Ordinary Routers |
| Sub Title (in English) | |
| Keyword(1) | IEEE1588 |
| Keyword(2) | Clock synchronization |
| Keyword(3) | Time Error |
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| 1st Author's Name | Koki Horita |
| 1st Author's Affiliation | Graduated School of Science and Engineering, Keio University (Keio Univ.) |
| 2nd Author's Name | Shota Shiobara |
| 2nd Author's Affiliation | SOFTBANK Corp. (Softbank) |
| 3rd Author's Name | Takao Okamawari |
| 3rd Author's Affiliation | SOFTBANK Corp. (Softbank) |
| 4th Author's Name | Fumio Teraoka |
| 4th Author's Affiliation | Keio University (Keio Univ.) |
| 5th Author's Name | Kunitake Kaneko |
| 5th Author's Affiliation | Keio University (Keio Univ.) |
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| Speaker | Author-1 |
| Date Time | 2017-03-03 13:50:00 |
| Presentation Time | 25 minutes |
| Registration for | IA |
| Paper # | SITE2016-62, IA2016-92 |
| Volume (vol) | vol.116 |
| Number (no) | no.490(SITE), no.491(IA) |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2017-02-24 (SITE, IA) |
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