Adaptive elastic spectrum allocation based on traffic fluctuation estimate in flexible OFDM-based optical networks

Mirai Chino, Takahiro Miyazaki, Eiji Oki, Satoru Okamoto, Naoaki Yamanaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publication2016 IEEE 17th International Conference on High Performance Switching and Routing, HPSR 2016
PublisherIEEE Computer Society
Pages81-86
Number of pages6
Volume2016-July
ISBN (Electronic)9781479989508
DOIs
Publication statusPublished - 2016 Jul 28
Event17th IEEE International Conference on High Performance Switching and Routing, HPSR 2016 - Yokohama, Japan
Duration: 2016 Jun 142016 Jun 17

Other

Other17th IEEE International Conference on High Performance Switching and Routing, HPSR 2016
CountryJapan
CityYokohama
Period16/6/1416/6/17

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Adaptive elastic spectrum allocation based on traffic fluctuation estimate in flexible OFDM-based optical networks'. Together they form a unique fingerprint.

Cite this