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Optical Wavelength Division Multiplexing (WDM) networks based on fixed grid technology have exposed some questions, including wasting of bandwidth resources in multi-domain heterogeneous networks. Flexible grid technologies can provide end-to-end optical path according to the client flexibly and effectively. However, it is unpractical to deploy a one-time green-field flexible grid technologies subjected...
The continuous growth of the Internet in the last decade has contributed to an unprecedented increase of the total amount of energy consumed by telecommunication networks worldwide. In this context, Wavelengths Division Multiplexed networks, besides providing benefits in terms of high transport capacity, have been recognized as an effective solution to achieve substantial power savings in core transport...
We solve the problem of datacenter placement in optical cloud networks with the aim of jointly minimizing the non-renewable datacenter energy consumption and the number of DCs. Lexicographic optimization is utilized to balance the two objectives.
With the vigorous development of Digital Broadcasting, the Internet of Things and Cloud Computing, there are more and more multicast applications in the network, leading to network traffic increases exponentially. Although optical network improves the network transmission capacity enormously, the growing network traffic still poses a challenge for the transport mechanism. Therefore, how to transport...
With the wide spread use of the Internet and proliferation of devices, the energy consumed by the network increases significantly, thus necessitating the construction of green networks. In this paper, we design an energy-efficient routing scheme for multiple many-to-many multicast requests with known traffic demands in green multi-granularity transport networks. We present a probabilistic model which...
This paper presents an energy saving technique for optical burst switched networks that reduces energy consumption without significantly degrading the quality of service (QoS) and the connectivity of the network. We propose a distributed algorithm using anycasting an communication paradigm, where the wavelength routed nodes (WRNs) adopt a sleep mode cutting the traffic routed through them. This paper...
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