Efficient Design of WDM Network with online QoS Guarantee Scheme

The rapid progress on optical performance monitoring technology makes it possible for optical network designers to guarantee the QoS quality of lightpaths in Wavelength Division Multiplexing (WDM) network. This article describes the basic idea of online QoS guarantee scheme, focusing on the distributed optical noise figure calculation algorithm and supporting signaling protocol. A heuristic is developed to analyze the degradation of resource reusability under different QoS requirements.

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