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A Novel Wheellike Sub-Networks Partition Scheme for Distributed Restoration in Large-Scale Optical Networks
Hui HE Ge FAN Chao GUO
Publication
IEICE TRANSACTIONS on Communications
Vol.E88-B
No.3
pp.1256-1259 Publication Date: 2005/03/01 Online ISSN:
DOI: 10.1093/ietcom/e88-b.3.1256 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Fiber-Optic Transmission for Communications Keyword: network partition, distributed restoration, large-scale optical network, sub-network,
Full Text: PDF(300.2KB)>>
Summary:
Current centralized restoration schemes are unsuitable for the increase of scale and complexity of networks. A novel distributed network partition scheme is proposed in this paper. In this scheme, a large-scale network can be partitioned into some wheellike sub-networks with nuclear nodes. In wheellike sub-networks, ring links and spoke links could provide reciprocal safeguard. Based on such structure, different distributed restoration schemes can be combined for failure restoration. The proposed partition approach has been implemented through computer simulation, and it was tested on practical national-scale optical networks. The simulation result shows that this scheme is practicable and effectual.
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