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| Presentation | 2021-05-14 10:55 Spectrum Defragmentation based on Path Classification in Optical Network Hanami Yokoi, Kohjun Koshiji, Yasuharu Kaneko, Tatsuya Matsukawa, Mika Ishizuka, Takafumi Hamano (NTT)  NS2021-23 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In recent years, with the increase in the speed and capacity of optical transmission networks, it is necessary to operate them in a way that makes efficient use of wavelength resources. For efficient use of wavelength resources, wavelength defragmentation has been proposed to reallocate optical paths and improve the efficiency of wavelength utilization. When reallocating wavelengths by wavelength defragmentation, it is necessary to change the control of wavelength reassignment for each quality class to satisfy the required quality of the optical path. In this paper, we propose a wavelength defragmentation scheme that takes into account the attributes of optical paths in optical transmission networks. In the proposed method, different defragmentation operations are performed for each class of an optical path, which enables us to improve the efficiency of wavelength utilization while satisfying the required quality of the service. Specifically, we classify optical paths into three classes and change the control of wavelength reassignment for each class to defragment wavelengths more effectively. The three types of attributes are high reliability path, low latency path, and normal path. We evaluate the performance of the proposed method for optical transmission networks with simulation. In numerical examples, we show that the wavelength utilization efficiency is improved by applying our proposed method. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Optical Network / Spectrum Allocation / Spectrum Defragmentation / Path Classification / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 17, NS2021-23, pp. 50-55, May 2021. | |
| Paper # | NS2021-23 | |
| Date of Issue | 2021-05-06 (NS) | |
| 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 | NS2021-23 |
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| Conference Information | |
| Committee | NS |
| Conference Date | 2021-05-13 - 2021-05-14 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | High level protocol, Networking technologies (IP and high-layer routing/filtering, Multicast, Quality/Routing control), IP network application technologies (P2P, P4P, Overlay, SIP, NGN), Network system related technologies (System configuration, Interface, Architecture, Hardware/Software/Middleware), Security, Blockchain etc. |
| Paper Information | |
| Registration To | NS |
| Conference Code | 2021-05-NS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Spectrum Defragmentation based on Path Classification in Optical Network |
| Sub Title (in English) | |
| Keyword(1) | Optical Network |
| Keyword(2) | Spectrum Allocation |
| Keyword(3) | Spectrum Defragmentation |
| Keyword(4) | Path Classification |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Hanami Yokoi |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 2nd Author's Name | Kohjun Koshiji |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 3rd Author's Name | Yasuharu Kaneko |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 4th Author's Name | Tatsuya Matsukawa |
| 4th Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 5th Author's Name | Mika Ishizuka |
| 5th Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 6th Author's Name | Takafumi Hamano |
| 6th Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
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| Speaker | Author-1 |
| Date Time | 2021-05-14 10:55:00 |
| Presentation Time | 25 minutes |
| Registration for | NS |
| Paper # | NS2021-23 |
| Volume (vol) | vol.121 |
| Number (no) | no.17 |
| Page | pp.50-55 |
| #Pages | 6 |
| Date of Issue | 2021-05-06 (NS) |
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