Paper Info
Title
Spectrum utilization maximization in coarse granular optical routing networks that employ fine granular shared protection
Abstract
To offset the impairment caused by imperfect optical filtering at ROADMs/OXCs, guard bands must be inserted between optical channels. The resulting degradation in frequency utilization detracts from the benefit of next-generation elastic optical path networks. To overcome this problem and achieve an ICT infrastructure with the required level of resiliency, we add path-granularity-level shared protection to our coarse granular optical routing networks with fine granular add/drop. Optical paths are densely packed in coarse granular optical pipes, but the filtering impairment generated by the routing process is greatly mitigated, which results in enhanced fiber frequency utilization. The impairment caused by path dropping is carefully minimized for all possible backup paths, which is made possible by our newly developed network design algorithm. Numerical experiments show that the number of fibers in a network is substantially reduced over conventional shared protected networks.
Year
DOI
Venue
2016
10.1109/DRCN.2016.7470838
2016 12th International Conference on the Design of Reliable Communication Networks (DRCN)
Keywords
Field
DocType
coarse granular routing optical path networks,grouped routing,shared path protection,routing and wavelength assignment
Optical path,Optical Transport Network,Equal-cost multi-path routing,Shared Risk Resource Group,Computer science,Optical add-drop multiplexer,Computer network,Optical performance monitoring,Optical cross-connect,Multiwavelength optical networking,Distributed computing
Conference
ISSN
Citations 
PageRank 
2639-2313
0
0.34
References 
Authors
11
4
Name
Order
Citations
PageRank
Tomohiro Ishikawa131.10
Yojiro Mori2912.44
Hiroshi Hasegawa31815.70
Ken-ichi Sato42217.17