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Joint VNF-Provisioning and Virtual Topology Design in 5G Optical Metro Networks 2019 21st International Conference on Transparent Optical Networks (ICTON) Ruiz Pérez, Lidia Durán Barroso, Ramón José Miguel Jiménez, Ignacio de Merayo Álvarez, Noemí Aguado Manzano, Juan Carlos Fernández Reguero, Patricia Lorenzo Toledo, Rubén Mateo Abril Domingo, Evaristo José 5G Optical networks Redes ópticas Producción Científica 5G technology will provide networks with high-bandwidth, low latency and multitenancy. The integration of computing and storage resources in the edge of the fronthaul network, i.e., multi-access edge computing (MEC), will allow to instantiate some virtual network functions (VNF) in those computing resources. The backhaul of 5G networks will be based on optical technology, in particular WDM, due to its high capacity and flexibility. In this paper, we analyse the problem of VNF-provisioning in a metro ring-topology network equipped with MEC resources and with a WDM network connecting the edge nodes. In contrast to previous proposals, the method decides where VNFs must be instantiated but also the design of the virtual topology for the WDM metro network in order to reduce the service blocking ratio and the number of resources in operation. Ministerio de Economía, Industria y Competitividad (project TEC2017-84423-C3-1-P) Ministerio de Industria, Energía y Turismo (project BES-2015-074514) 2022-04-22T11:56:53Z 2022-04-22T11:56:53Z 2019 info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/acceptedVersion 2019 21st International Conference on Transparent Optical Networks (ICTON). Angers, Francia: IEEE, 2019. 4 p. 978-1-7281-2779-8 https://uvadoc.uva.es/handle/10324/52905 10.1109/ICTON.2019.8840523 eng https://ieeexplore.ieee.org/document/8840523 Attribution-NonCommercial-NoDerivatives 4.0 Internacional info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ © 2019 IEEE application/pdf IEEE https://uvadoc.uva.es/bitstream/10324/52905/4/Joint-VNF-provisioning-virtual-topology%20.pdf.jpg Hispana TEXT http://creativecommons.org/licenses/by-nc-nd/4.0/ UVaDOC. Repositorio Documental de la Universidad de Valladolid https://uvadoc.uva.es/handle/10324/52905