1 April 2007 Quick survivable algorithm with shared-risk link groups in backup-shared restorable optical networks
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Optical Engineering, 46(4), 045004 (2007). doi:10.1117/1.2720817
Abstract
We propose a novel survivable algorithm, called backup-shared with trap avoidance (BSTA), to protect against single failure with shared-risk link groups (SRLGs) in wavelength-division multiplexing optical networks. In BSTA, each connection request will be assigned one primary path and one SRLG-disjoint backup, or one primary path and two SRLG-disjoint segment-backup paths. In contrast with previous algorithms, BSTA not only can effectively avoid the trap problem, but also can obtain better resource utilization ratio and lower blocking probability. Simulation results are shown to be promising.
Lei Guo, Lemin Li, Jin Cao, Hongfang Yu, "Quick survivable algorithm with shared-risk link groups in backup-shared restorable optical networks," Optical Engineering 46(4), 045004 (1 April 2007). http://dx.doi.org/10.1117/1.2720817
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KEYWORDS
Optical networks

Chromium

Wavelength division multiplexing

Broadband telecommunications

Optical engineering

Failure analysis

Fiber optic communications

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