Online and Offline Virtualization of Optical Transceiver

Ou, Yanni; Hammad, Ali; Peng, Shuping; Nejabati, Reza; Simeonidou, Dimitra

doi:10.1364/jocn.7.000748

Cited by 13 publications

(14 citation statements)

References 30 publications

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“…In Fig. 1, we provide a high-level overview on the RvEON architecture based on some existing architectures [6]- [7], and then explain the designs of the three layers in the architecture in details.…”

Section: Concept and Archtecture Of Rveonmentioning

confidence: 99%

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Integrated VONE Scheme Over Resource-Virtualized Elastic Optical Networks

et al. 2019

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To eliminate the ossification of optical infrastructure and adapt to the high-performance Internet applications, optical network virtualization is an important enabler to offer each application type a dedicated virtual optical network (VON). It can provide resource sharing for multiple VON requests on an optical infrastructure, and promise efficient use of network resources. In the paper, we first introduce a new concept of resource-virtualized elastic optical network (RvEON), which not only realizes link-tier spectrum virtualization in each substrate fiber link (SFL), but also node-tier virtualized transponders (vTPs) within each substrate node (SN). The RvEON can be considered as a very promising optical infrastructure for multiple VON requests. We then propose a novel integrated virtual optical network embedding (iVONE) scheme over RvEONs. For the iVONE, the node mapping and link mapping are performed in an integrated way, which is totally different from all existing two-phased VONE schemes. In the RvEONs, a novel integer linear programming (ILP) model is formulated, which additionally takes into account the subcarrier and modulator resource constraints of the virtualized TPs. Meanwhile, a novel routing, modulator, spectrum and subcarrier assignment (RMS 2 A) algorithm is designed to establish lightpaths for virtual link mapping in the RvEONs. The simulation results demonstrate that our proposed RMS 2 A algorithm achieves better performance than the existing benchmark two-phased algorithm. We also investigate the impact of bit-rates of the VON requests and the different configurations of various modulators that each vTP can offer on the network performances, respectively. INDEX TERMS Elastic optical networks, network resource virtualization, virtual optical network embedding, virtualized transponder.

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Section: Concept and Archtecture Of Rveonmentioning

confidence: 99%

“…It is the node-tier optical transponder virtualization. In [7], a novel V-BVT architecture was presented and both online and offline virtualization algorithms for V-BVT were introdeced. In [8], another feasible V-BVT architecture was presented by provisioning an optical subcarrier pool and an optical modulator pool within each SN.…”

Section: Introductionmentioning

confidence: 99%

Integrated VONE Scheme Over Resource-Virtualized Elastic Optical Networks

et al. 2019

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“…In that work, OpenFlow extensions have been proposed to control the radio frequency sources used in the frequency comb generation module, in order to set the spacing among optical carriers. In [40], [41], [42], [43], [44] authors investigated the virtualization of multi-flow transponder offering independent operations, control and management abilities to the clients or higher level network controllers. In particular, the demonstration of a virtualizable transponder has been reported in [42], while authors in [43] investigated the costs of virtualization.…”

Section: Sdn Control Of Optical Transceiversmentioning

confidence: 99%

A Survey of Optical Carrier Generation Techniques for Terabit Capacity Elastic Optical Networks

Imran

Anandarajah

Kaszubowska-Anandarajah

et al. 2018

IEEE Commun. Surv. Tutorials

104

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Abstract-Elastic optical networks (EON) have been proposed to meet the network capacity and dynamicity challenges. Hardware and software resource optimization and re-configurability are key enablers for EONs. Recently, innovative multi-carrier transmission techniques have been extensively investigated to realize high capacity (Tb/s) flexible transceivers. In addition to standard telecommunication lasers, optical carrier generators based on optical frequency combs (OFC) have also been considered with expectations of reduced cost and inventory, improved spectral efficiency and flexibility. A wide range of OFC generation techniques have been proposed in the literature over the past few years. It is imperative to summarize the state of the art, compare and assess these diverse techniques from a practical perspective. In this survey, we identify salient features of optical multicarrier generators, review and compare these techniques both from a physical and network layer perspective. OFC demultiplexing/filtering techniques have also been reviewed. In addition to transmission performance, the impact of such sources on the network performance and real-world deployment strategies with reference to cost, power consumption, and level of flexibility have also been discussed. Field trials, integrated solutions, flexibility demonstrations are also reported. Finally, open issues and possible future directions that can lead to real network deployment are highlighted.

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“…The functionality of the developed DSP based BVT has been verified for a metropolitan area network with links reaching up to 150 km. c) Subcarrier and Modulator Pool Based Virtualizable BVT: Ou et al [159], [160] have developed a Virtualizable BVT (V-BVT) based on a combination of an optical subcarriers pool with an independent optical modulators pool, as illustrated in Fig. 5 menting Virtual Optical Networks (VONs) at the transceiver level.…”

Section: A Transceiversmentioning

confidence: 99%

Software Defined Optical Networks (SDONs): A Comprehensive Survey

Thyagaturu

Mercian

McGarry

et al. 2016

IEEE Commun. Surv. Tutorials

301

129

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The emerging Software Defined Networking (SDN) paradigm separates the data plane from the control plane and centralizes network control in an SDN controller. Applications interact with controllers to implement network services, such as network transport with Quality of Service (QoS). SDN facilitates the virtualization of network functions so that multiple virtual networks can operate over a given installed physical network infrastructure. Due to the specific characteristics of optical (photonic) communication components and the high optical transmission capacities, SDN based optical networking poses particular challenges, but holds also great potential. In this article, we comprehensively survey studies that examine the SDN paradigm in optical networks; in brief, we survey the area of Software Defined Optical Networks (SDONs). We mainly organize the SDON studies into studies focused on the infrastructure layer, the control layer, and the application layer. Moreover, we cover SDON studies focused on network virtualization, as well as SDON studies focused on the orchestration of multilayer and multidomain networking. Based on the survey, we identify open challenges for SDONs and outline future directions

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Online and Offline Virtualization of Optical Transceiver

Cited by 13 publications

References 30 publications

Integrated VONE Scheme Over Resource-Virtualized Elastic Optical Networks

Integrated VONE Scheme Over Resource-Virtualized Elastic Optical Networks

A Survey of Optical Carrier Generation Techniques for Terabit Capacity Elastic Optical Networks

Software Defined Optical Networks (SDONs): A Comprehensive Survey

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