抄録
A flexible orthogonal frequency-division multiplexing optical network enables to change bandwidth flexibly by changing the number of sub-carriers. We consider that users request to dynamically change the number of sub-carriers. In this context, the network resources can be used more efficiently. The dynamic bandwidth change needs a certain time. Service centric resource allocation must be considered in terms of waiting time to change the number of sub-carriers. If the user demands drastically increase such as a disaster priority telephone service, a waiting time for bandwidth changes is not tolerated because emergency is time-critical. This is caused by a chain-change of bandwidth such as a multiple-car pileup. This paper proposes a grouped elastic spectrum allocation scheme to satisfy the tolerable waiting time of the service in an optical fiber link. Spectrums are grouped to restrict a waiting time in the proposed scheme. In addition, the proposed scheme determines a margin bandwidth with neighbor spectrums to prevent frequent reallocation by estimating real traffic behavior. Numerical results show that a required bandwidth can be saved with satisfying waiting time constraints. Additionally measurement granularity is discussed.
本文言語 | English |
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ホスト出版物のタイトル | 2016 IEEE 17th International Conference on High Performance Switching and Routing, HPSR 2016 |
出版社 | IEEE Computer Society |
ページ | 81-86 |
ページ数 | 6 |
巻 | 2016-July |
ISBN(電子版) | 9781479989508 |
DOI | |
出版ステータス | Published - 2016 7月 28 |
イベント | 17th IEEE International Conference on High Performance Switching and Routing, HPSR 2016 - Yokohama, Japan 継続期間: 2016 6月 14 → 2016 6月 17 |
Other
Other | 17th IEEE International Conference on High Performance Switching and Routing, HPSR 2016 |
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国/地域 | Japan |
City | Yokohama |
Period | 16/6/14 → 16/6/17 |
ASJC Scopus subject areas
- ハードウェアとアーキテクチャ
- 電子工学および電気工学