Virtual optical network embedding (VONE) over elastic optical networks

L Gong, Z Zhu - Journal of Lightwave Technology, 2013 - ieeexplore.ieee.org
Based on the concept of infrastructure as a service, optical network virtualization can
facilitate the sharing of physical infrastructure among different users and applications. In this …

Novel location-constrained virtual network embedding LC-VNE algorithms towards integrated node and link mapping

L Gong, H Jiang, Y Wang, Z Zhu - IEEE/ACM Transactions on …, 2016 - ieeexplore.ieee.org
This paper tries to solve the location-constrained virtual network embedding (LC-VNE)
problem efficiently. We first investigate the complexity of LC-VNE, and by leveraging the …

Orchestrating tree-type VNF forwarding graphs in inter-DC elastic optical networks

M Zeng, W Fang, Z Zhu - Journal of Lightwave Technology, 2016 - opg.optica.org
It is known that by incorporating network function virtualization (NFV) in inter-datacenter
(inter-DC) networks, service providers can use their network resources more efficiently and …

Dynamic slicing approach for multi-tenant 5G transport networks

MR Raza, M Fiorani, A Rostami, P Öhlen… - Journal of Optical …, 2018 - opg.optica.org
Software defined networking allows network providers to share their physical network (PN)
among multiple tenants by means of network slicing, where several virtual networks (VNs) …

Novel framework of risk-aware virtual network embedding in optical data center networks

W Hou, Z Ning, L Guo, Z Chen… - IEEE Systems …, 2017 - ieeexplore.ieee.org
The traffic between geographically distributed data centers (DCs) becomes bandwidth
hungry. Since the optical interconnection has a high capacity, the optical data center …

Availability-aware survivable virtual network embedding in optical datacenter networks

H Jiang, Y Wang, L Gong, Z Zhu - Journal of Optical Communications …, 2015 - opg.optica.org
In this work, we study the availability-aware survivable virtual network embedding (A-SVNE)
problem in optical interdatacenter networks that use wavelength-division multiplexing. With …

Joint defragmentation of optical spectrum and IT resources in elastic optical datacenter interconnections

W Fang, M Lu, X Liu, L Gong, Z Zhu - Journal of Optical …, 2015 - opg.optica.org
With its agile spectrum management in the optical layer, the flexible-grid elastic optical
network can become a promising physical infrastructure to efficiently support the highly …

On the parallelization of spectrum defragmentation reconfigurations in elastic optical networks

M Zhang, C You, Z Zhu - IEEE/ACM Transactions on …, 2015 - ieeexplore.ieee.org
Flexible-grid elastic optical networks (EONs) have attracted intensive research interests for
the agile spectrum management in the optical layer. Meanwhile, due to the relatively small …

Cost-efficient virtual network function graph (vNFG) provisioning in multidomain elastic optical networks

Y Wang, P Lu, W Lu, Z Zhu - Journal of Lightwave Technology, 2017 - opg.optica.org
Acting as a promising technology to bring revolutionary changes to how the networks are
architected, network function virtualization (NFV) leverages IT virtualization technologies to …

When deep learning meets inter-datacenter optical network management: Advantages and vulnerabilities

J Guo, Z Zhu - Journal of Lightwave Technology, 2018 - opg.optica.org
To realize cost-effective and adaptive network control and management (NC&M) on inter-
datacenter optical networks (IDCONs), people have considered network virtualization to let …