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| Presentation | 2009-06-25 13:35 A failure rate estimation considering the change in the number of equipments -- Applicable condition of mathematical model for proposed method -- Hiroyuki Funakoshi, Tatsuya Matsukawa (NTT)  NS2009-33 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The authors have been insisted on the importance of reliability management for IP networks constructed of commercial equipments, and studied the management technique using the actual failure data. Failure rate, unavailability, and maintainability are the typical measures for the reliability management of telecommunication networks. These reliability measures could not be exactly estimated using the previous reliability methods because the number of equipments and users change in communication networks. The authors proposed the method for estimating the instantaneous failure rate by using the number of equipments and cumulative failures. However, there is a problem in this method that the failure rate estimated by some polynomial approximations of the cumulative failures may be uncontinuous. In this paper, the authors study on the applicable condition of mathematical model for proposed method to solve the issue mentioned above. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | reliability / failure rate / number of equipments / cumulative failures / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 102, NS2009-33, pp. 13-18, June 2009. | |
| Paper # | NS2009-33 | |
| Date of Issue | 2009-06-18 (NS) | |
| 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 | NS2009-33 |
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| Conference Information | |
| Committee | NS OCS PN |
| Conference Date | 2009-06-25 - 2009-06-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagasaki Museum of History and Culture (Nagasaki) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Photonic Network System, Optical Control, Optical Switching, WDM, Multi-layer, Next Generation Transport |
| Paper Information | |
| Registration To | NS |
| Conference Code | 2009-06-NS-OCS-PN |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A failure rate estimation considering the change in the number of equipments |
| Sub Title (in English) | Applicable condition of mathematical model for proposed method |
| Keyword(1) | reliability |
| Keyword(2) | failure rate |
| Keyword(3) | number of equipments |
| Keyword(4) | cumulative failures |
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| Keyword(8) | |
| 1st Author's Name | Hiroyuki Funakoshi |
| 1st Author's Affiliation | NTT Service Integration Laboratories (NTT) |
| 2nd Author's Name | Tatsuya Matsukawa |
| 2nd Author's Affiliation | NTT Service Integration Laboratories (NTT) |
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| Speaker | Author-1 |
| Date Time | 2009-06-25 13:35:00 |
| Presentation Time | 25 minutes |
| Registration for | NS |
| Paper # | NS2009-33 |
| Volume (vol) | vol.109 |
| Number (no) | no.102 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2009-06-18 (NS) |
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