Novel Automatic Service Restoration Technique by Using Self-Reconfiguration of Network Resources for a Disaster-struck Metro-Access Network

Takuya Kanai, Yumiko Senoo, Kota Asaka, Jun Sugawa, Hideaki Tamai, Hiroyuki Saito, Naoki Minato, Atsushi Oguri, Seiya Sumita, Takehiro Sato, Nobuhiko Kikuchi, Shun Ichi Matsushita, Takehiro Tsuritani, Satoru Okamoto, Naoaki Yamanaka, Ken Ichi Suzuki, Akihiro Otaka

研究成果: Article査読

9 被引用数 (Scopus)

抄録

This paper shows the concept of the elastic lambda aggregation network (EλAN) that will achieve an elastic common access infrastructure for the metro-access network. It proposes a service restoration technique that uses optical path switching and intercentral office handover for EλAN to recover from disasters. The feasibility of the proposed service restoration technique is successfully demonstrated for the first time by using a prototype testbed of a metro-access network. By applying both orthogonal frequency division multiplexing and adaptive modulation, the system automatically changes the transmission parameters (modulation level, the number of subcarriers, and symbol rate) according to the service requirements and conditions of the optical distribution network, such as the link's end-to-end optical loss, in order to achieve accommodate multiple services. In the experiment, an optical network unit in a faulted system automatically reconnected within 10 s to another office 20-km away with the same throughput.

本文言語English
ページ(範囲)1516-1523
ページ数8
ジャーナルJournal of Lightwave Technology
36
8
DOI
出版ステータスPublished - 2018 4月 15

ASJC Scopus subject areas

  • 原子分子物理学および光学

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