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The advances in fiber-optic technology and wavelength division multiplexing technique have led to the adoption of optical networks into cloud data centers to meet the ever-growing traffic demands. The hybrid optical-electrical data center network architecture becomes a transition solution from the all-electrical network architecture to the all-optical one since it is efficient in terms of the operational...
Optical switching based on wavelength division multiplexing has become a promising network technology to scale the performance of data centers. It provides high bisection bandwidth with low power consumption and low complexity of network wiring. However, it raises new challenges for the flow scheduling problem due to the dynamic arrival of traffic flows with unknown service duration combined with...
Cloud data centers have become an attractive candidate for large-scale applications that require cloud resources in the form of a virtual network. Embedding virtual networks in data centers to allocate cloud resources to the applications running on the virtual machines is crucial since it affects resource efficiency and thus the revenue of cloud providers. Most of the existing embedding algorithms...
Wavelength division multiplexed optical networks have become an attractive candidate to meet the ever-growing traffic demands in cloud data centers due to the features of large capacity and dynamic reconfiguration capability. While the bandwidth does not affect the makespan of compute-intensive and content-delivery-network applications, it has an impact on data-intensive applications that therefore...
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