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In a optical multidomain network, each domain needs to advertise its topology information to the other domains. Topology aggregation is an effective means to reduce the amount of the advertised topology information for each domain in large scale networks. The accuracy of aggregating the topology states is improved by using the approximation curves with limited amount of advertising topology information...
We present an algorithm to define the physical topology and the specification of the optical devices that should be deployed in a network to minimize simultaneously the total capital cost and the network blocking probability.
In this paper we propose a methodology based on an evolutionary multiobjective optimization algorithm for the problem of up-grading (expansion) the physical topology of transparent optical networks. The aim is to define the new topology layout and the specification of the new optical devices that should be deployed in an existing network in order to improve its performance, considering simultaneously...
Generalized Multi-Protocol Label Switching (GMPLS) based optical networks are viewed as a promising network infrastructure for the next generation network (NGN) development. By pre-configuring the resources of dynamic optical networks, we can reconstruct the physical topology, thus increase the number of direct routes between potentially heavily loaded physical node pairs and optimize the performance...
Optical Packet Switching (OPS) technologies are among the most promising solutions for next generation Internet. In this paper, we address quality of service (QoS) and fairness issues in a novel OPS ring architecture with a slotted synchronous transmission mode. The basic MAC protocol in the studied architecture is similar to the CSMA/CA mechanism. Using this mechanism, each node in the network may...
Optical packet switching (OPS) technologies are among the most promising solutions for next generation network architectures. Resource contention resolution and Quality of Service (QoS) management mechanisms have been developed in order to remedy the lack of optical buffering and implement multi-service support in OPS networks. In this paper we propose an analytical model for the access and core nodes...
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