Network Virtualization Over SLICE Networks

The IT industry is experiencing an era of virtualization where everything (from utility resources to network components and functions) are abstracted as logical services to achieve agile and automated resource provision. The future Internet is projected into a two-player model via network virtualization, which promises more rapid technological revolutions through the functional decoupling. The advancement in network virtualization in turn necessitates a virtualized optical substrate for supplying abundant any-to-any connectivity to the future Internet. Among candidate optical technologies, Spectrum-Sliced Elastic Optical (SLICE) networks possess ideal features to seamlessly support network virtualization. In this work, we study network virtualization based on a SLICE substrate, and focus on the key enabler, namely the optical virtual network embedding over SLICE networks (OVNE-SLICE) problem. We elaborate the difference between OVNE-SLICE and regular VNE problem, and present Integer Linear Programming formulations for OVNE-SLICE problem.