Show simple item record

dc.contributor.authorLin, Shih-Chun
dc.contributor.authorWang, Pu
dc.contributor.authorLuo, Min
dc.identifier.citationLin, Shih-Chun; Wang, Pu; Luo, Min. 2016. Jointly optimized QoS-aware virtualization and routing in software defined networks. Computer Networks, vol. 96, 26 February 2016:pp 69–78en_US
dc.descriptionClick on the DOI link to access the article (may not be free).en_US
dc.description.abstractSoftware Defined Networks (SDNs) have been recognized as the next-generation networking paradigm that decouples the network control plane from the data forwarding plane. A logically centralized controller is responsible for all the control decisions and communication among the forwarding switches. However, current traffic engineering techniques and state-of-the-art routing algorithms do not effectively use the merits of SDNs, such as global centralized visibility, control and data plane decoupling, network management simplification and great computation capability. In this paper, a multi-tenancy management framework is proposed to enable the jointly optimized design of quality-of-services (QoSs)-aware virtualization and routing by tenant isolation and prioritization as well as flow allocation, fulfilling QoS requirements of tenants' applications. Specifically, a fine-grained network virtualization is first proposed to isolate and prioritize tenants through the design of network and switch hypervisors. Furthermore, a QoS-aware dynamic flow allocation is proposed to enable optimal flow routes selection upon the given network slicing with QoS provisioning. Finally, an adaptive feedback management tool, called QoS-aware Virtualization-enabled Routing (QVR), is proposed to combine virtualization with flow allocation and supports reliable and efficient transmissions with regards of time-varying QoS requirements, network topologies, and traffic statistics. Simulations confirm that QVR achieves much less shared edges, congestion latency, and traffic delay for multiple tenants, thus facilitating virtualization-enabled traffic engineering for multi-tenancy SDNs.en_US
dc.publisherElsevier B.V.en_US
dc.relation.ispartofseriesComputer Networks;v.96
dc.subjectController management toolen_US
dc.subjectJoint virtualization and routing decisionen_US
dc.subjectFine-grained network virtualizationen_US
dc.subjectDynamic flow allocationen_US
dc.subjectEnd-to-end QoS provisioningen_US
dc.subjectSoftware defined networksen_US
dc.titleJointly optimized QoS-aware virtualization and routing in software defined networksen_US
dc.rights.holder(C) 2015 Elsevier B.V. All rights reserved.en_US

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record