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Resource-efficient virtual network function placement in operator networks
conference contributionposted on 2018-01-01, 00:00 authored by X Song, X Zhang, Shui Yu, S Jiao, Z Xu
Network Function Virtualization (NFV) is an emerging network resource utilization approach which decouples network functions from proprietary hardware. To accommodate Service Function Chain (SFC) requests, service providers offer Virtual Network Function (VNF) instances in operator networks. However, how to efficiently place VNFs at various network locations while jointly optimizing computing and communication resource is still an open problem. To this end, we study the resource-efficient VNF placement problem in operator networks. We firstly formulate this problem as an Integer Linear Programming (ILP) model. Then we design an efficient heuristic algorithm named Resource- efficient Virtual Network Function Placement (RVNFP) based on Hidden Markov Model (HMM). Extensive simulation results show that compared with the previous VNF placement algorithms, RVNFP saves up to 12.51% network cost, and achieves a good tradeoff between computing resource cost and communication resource cost.
EventIEEE Communications Society. Conference (2017 : Singapore)
SeriesIEEE Communications Society Conference
Pagination1 - 7
PublisherInstitute of Electrical and Electronics Engineers
Place of publicationPiscataway, N.J.
Publication classificationE Conference publication; E1 Full written paper - refereed
Copyright notice2017, IEEE
Title of proceedingsGLOBECOM 2017 : Proceedings of the 2017 IEEE Global Communications Conference