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In recent years, a number of papers have shown that the scheduled traffic model, which exploits knowledge of the connection holding times of traffic demands, can lead to significant improvements in resource utilization in WDM networks. In such a traffic model, the setup and the teardown times of the scheduled demands may be known in advance (fixed window model) or may be allowed to slide within a...
There has been considerable research interest in the design of survivable grooming capable networks in recent years. For such networks, protection may take place at the lightpath level or at the connection level. The vast majority of the current work can be classified into one of two categories (i) static grooming, where the demands are allocated for the entire duration of the network and (ii) dynamic...
Component failure in a WDM network is a serious problem that has attracted considerable attention in recent times. In a standard protection (or restoration) scheme the objective is to preserve the logical topology by switching over to back-up paths (or by setting up new lightpaths) after a fault occurs. In this paper we have proposed a new scheme where we handle a fault simply by modifying the traffic...
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