A Survey on Algorithmic Aspects of Virtual Optical Network Embedding for Cloud Networks

Dávalos, Enrique; Barán, Benjamín

doi:10.1109/access.2018.2821179

Cited by 30 publications

(8 citation statements)

References 79 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Geographical distribution data center networks connected with optical network guarantee the requirements of 5G network services and applications (e.g., video streaming) [53][54][55]. Furthermore, network virtualization in ODCNs can be classified into intra- [17,18] and inter-ODCNs [16,[56][57][58]. Three provisioning schemes have been proposed in [59] by constructing a virtual auxiliary graph that decomposes the physical infrastructure into several layered graphs, according to the spectrum slot requirements of a virtual optical network request.…”

Section: Optical Networkmentioning

confidence: 99%

“…Existing surveys and literature have considered various details and network features for VNE under different network scenarios (e.g., elastic optical network) [16][17][18]. In [16], the authors have focused on algorithmic aspects for VNE for cloud networks. However, these surveys have not focused on VNE for multi-domain heterogeneous converged optical networks and the future research issues on implementation and intelligent algorithms.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Virtual Network Embedding for Multi-Domain Heterogeneous Converged Optical Networks: Issues and Challenges

Zong

Feng

Guan

et al. 2020

Sensors

View full text Add to dashboard Cite

The emerging 5G applications and the connectivity of billions of devices have driven the investigation of multi-domain heterogeneous converged optical networks. To support emerging applications with their diverse quality of service requirements, network slicing has been proposed as a promising technology. Network virtualization is an enabler for network slicing, where the physical network can be partitioned into different configurable slices in the multi-domain heterogeneous converged optical networks. An efficient resource allocation mechanism for multiple virtual networks in network virtualization is one of the main challenges referred as virtual network embedding (VNE). This paper is a survey on the state-of-the-art works for the VNE problem towards multi-domain heterogeneous converged optical networks, providing the discussion on future research issues and challenges. In this paper, we describe VNE in multi-domain heterogeneous converged optical networks with enabling network orchestration technologies and analyze the literature about VNE algorithms with various network considerations for each network domain. The basic VNE problem with various motivations and performance metrics for general scenarios is discussed. A VNE algorithm taxonomy is presented and discussed by classifying the major VNE algorithms into three categories according to existing literature. We analyze and compare the attributes of algorithms such as node and link embedding methods, objectives, and network architecture, which can give a selection or baseline for future work of VNE. Finally, we explore some broader perspectives in future research issues and challenges on 5G scenario, field trail deployment, and machine learning-based algorithms.

show abstract

Section: Optical Networkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Virtual Network Embedding for Multi-Domain Heterogeneous Converged Optical Networks: Issues and Challenges

Zong

Feng

Guan

et al. 2020

Sensors

View full text Add to dashboard Cite

show abstract

“…It consists in the appearance of isolated unused FS blocks in contiguous fiber links. These blocks may not be used, considering that optical connections, or lightpaths, must comply with the continuity and contiguity bandwidth restrictions in EONs in the absence of wavelength conversion [8]. As a consequence, bandwidth fragmentation has a direct influence in the blocking probability of connection demands.…”

Section: Introductionmentioning

confidence: 99%

Spectrum Defragmentation in Elastic Optical Networks: Two Approaches With Metaheuristics

et al. 2019

Self Cite

View full text Add to dashboard Cite

This work introduces two novel approaches for the selection of active lightpaths that perform a spectrum defragmentation process in elastic optical networks (EONs). The algorithms, named DF-Ants and DF-Gen, are based on ant colony optimization and genetic metaheuristics, respectively, and their objective is to minimize the fragmentation of the entire network, evaluated with two different fragmentation metrics. In this way, the blocking probability is expected to be minimized with the fewest number of reconfigured possible connections. Furthermore, a new performance metric for spectrum defragmentation is also presented, named weighted blocking rate (WBR). Unicast traffic simulations were conducted, showing the feasibility of the proposal.

show abstract

“…Optical network virtualisation is defined as the composition of multiple isolated virtual optical networks (VONs) simultaneously coexisting over the same physical optical network infrastructure [3,4]. The aforementioned features of EON make it an attractive transport technology for the implementation of optical network virtualisation due to the possibility of achieving efficient mapping of virtual resources onto the physical optical network resources, which is the main challenge when implementing network virtualisation.…”

mentioning

confidence: 99%

“…A large part of the information and computer-technology industry has endorsed network virtualisation approaches, investing in new closely related concepts such as software defined networking and the emergence of cloud-based services coupled with big data [4]. However, few types of researche [5] have focused on the survivability of VONs.…”

mentioning

confidence: 99%

Virtualisation of optical networks utilising squeezing protection: the exact formulation

et al. 2019

View full text Add to dashboard Cite

Elastic optical network (EON) is a new technology used for virtualisation of optical networks. In this Letter, a new linear formulation with protection is proposed for the design of EON networks with several virtual optical networks (VONs). The mixed integer linear programming (MILP) formulation integrates the concepts of bandwidth squeezing, grooming and modulation format, and allows different protection capability in each VON. The proposed MILP provides efficient survivability results and resource savings (in terms of the spectrum) for a complete design of EON with virtualisation.

show abstract

A Survey on Algorithmic Aspects of Virtual Optical Network Embedding for Cloud Networks

Cited by 30 publications

References 79 publications

Virtual Network Embedding for Multi-Domain Heterogeneous Converged Optical Networks: Issues and Challenges

Virtual Network Embedding for Multi-Domain Heterogeneous Converged Optical Networks: Issues and Challenges

Spectrum Defragmentation in Elastic Optical Networks: Two Approaches With Metaheuristics

Virtualisation of optical networks utilising squeezing protection: the exact formulation

Contact Info

Product

Resources

About