Coupled-layer type waveband path design method corresponding to traffic demand fluctuation
Computer Communications
Waveband switching for dynamic traffic demands in multigranular optical networks
IEEE/ACM Transactions on Networking (TON)
Survivability in waveband switching optical networks: Challenges and new ideas
Computer Communications
On dynamic wavelength assignment in wavelength-convertible multi-granular optical networks
IEEE Transactions on Communications
Optical switching in WDM networks: architectures and algorithms
ICOIN'09 Proceedings of the 23rd international conference on Information Networking
IEEE Communications Magazine
On service provisioning using light-trails in WDM optical networks with waveband switching
Photonic Network Communications
BFD-based failure detection and localization in IP over OBS/WDM multilayer network
International Journal of Communication Systems
Multicast multi-granular grooming based on integrated auxiliary grooming graph in optical networks
Photonic Network Communications
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The rapid advances in dense wavelength-division multiplexing technology with hundreds of wavelengths per fiber and worldwide fiber deployment have brought about a tremendous increase in the size (i.e., number of ports) of photonic cross-connects, as well as in the cost and difficulty associated with controlling such large cross-connects. Waveband switching (WBS) has attracted attention for its practical importance in reducing the port count, associated control complexity, and cost of photonic cross-connects. We show that WBS is different from traditional wavelength routing, and thus techniques developed for wavelength-routed networks (including, for example, those for traffic grooming) cannot be directly applied to effectively address WBS-related problems. We describe two multigranular OXC architectures for WBS. By using the multilayer MG-OXC in conjunction with intelligent WBS algorithms for both static and dynamic traffic, we show that one can achieve considerable savings in the port count. We also present various WBS schemes and lightpath grouping strategies, and discuss issues related to waveband conversion and failure recovery in WBS networks.