RT Journal Article
T1 VNF Placement and Resource Allocation for the Support of Vertical Services in 5G Networks
A1 Agarwal, Satyam
A1 Malandrino, Francesco
A1 Chiasserini, Carla Fabiana
A1 De, Swades
AB One of the main goals of 5G networks is to support the technological and business needs of various industries (the so-called verticals), which wish to offer to their customers a wide range of services characterized by diverse performance requirements. In this context, a critical challenge lies in mapping in an automated manner the requirements of verticals into decisions concerning the network infrastructure, including VNF placement, resource assignment, and traffic routing. In this paper, we seek to make such decisions jointly, accounting for their mutual interaction, efficiently. To this end, we formulate a queuing-based model and use it at the network orchestrator to optimally match the vertical's requirements to the available system resources. We then propose a fast and efficient solution strategy, called MaxZ, which allows us to reduce the solution complexity. Our performance evaluation, carried out an accounting for multiple scenarios representing the real-world services, shows that MaxZ performs substantially better than the state-of-the-art alternatives and consistently close to the optimum.
PB IEEE
SN 1063-6692
YR 2019
FD 2019-01-14
LK https://hdl.handle.net/10016/28219
UL https://hdl.handle.net/10016/28219
LA eng
NO This work was supported bythe European Commission under the H2020 projects 5G-TRANSFORMER(Project ID 761536) and 5G-EVE (Project ID 815074)
DS e-Archivo
RD 5 jul. 2024