Impairment aware optimal diverse routing for survivable optical networks

Impairment aware optimal diverse routing for survivable optical networks
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可生存光网络的损伤感知最优多样化路由

DOI:
10.1007/s11107-006-0035-0
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发表时间:
2007-03
影响因子:
1.7
通讯作者:
--
中科院分区:
计算机科学4区
文献类型:
--
作者:

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In wavelength-routed optical networks, a lightpath connection can be provisioned only if a path, or a pair of paths in case of path protection is required, can be found which satisfies multiple constraints while simultaneously achieving optimal primary cost. The primary cost can be any metric set by network administrators, and the constraints concerned in optical networks include wavelength continuity constraint, accumulation effect of some transmission impairments in the optical domain, and SRLG-disjoint requirement in survivable networks. In this paper, the impact of these constraints on the optimal path calculation algorithms is studied. Three novel algorithms for solving this problem, which we call “Impairment Aware Optimal Path Pair” problem, are proposed, and their performance is evaluated through extensive simulations.
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