DMCA
Survivable Waveband Switching in WDM Mesh Networks under Dedicated Path-Protection
| Citations: | 2 - 0 self |
BibTeX
@MISC{Li_survivablewaveband,
author = {Mengke Li and Byrav Ramamurthy},
title = {Survivable Waveband Switching in WDM Mesh Networks under Dedicated Path-Protection},
year = {}
}
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Abstract
This paper considers the problem of dedicated path-protection in wavelength-division multiplexed (WDM) mesh networks with waveband switching functionality under shared risk link group (SRLG) constraints. Two dedicated path-protection schemes are proposed, namely the PBABL scheme and the MPABWL scheme. The PBABL scheme protects each working waveband-path through a backup waveband-path. The MPABWL scheme protects each working waveband-path by either a backup waveband-path or multiple backup lightpaths. Heuristic algorithms adopting random optimization technique are proposed for both the schemes. The performance of the two protection schemes is studied and compared. Simulation results show that both the heuristics can obtain optimum solutions and the MPABWL scheme leads to less switching and transmission costs than the PBABL scheme.
Keyphrases
dedicated path-protection pbabl scheme survivable waveband switching mpabwl scheme wdm mesh network backup waveband-path multiple backup lightpaths wavelength-division multiplexed simulation result random optimization technique dedicated pathprotection scheme transmission cost protection scheme optimum solution risk link group
