RT Journal Article
T1 Multi-tenant radio access network slicing: statistical multiplexing of spatial loads
A1 Caballero Garcés, Pablo
A1 Banchs Roca, Albert
A1 De Veciana, Gustavo
A1 Costa-Pérez, Xavier
AB This paper addresses the slicing of radio access network resources by multiple tenants, e.g., virtual wireless operators and service providers. We consider a criterion for dynamic resource allocation amongst tenants, based on a weighted proportionally fair objective, which achieves desirable fairness/protection across the network slices of the different tenants and their associated users. Several key properties are established, including: the Pareto-optimality of user association to base stations, the fair allocation of base stations' resources, and the gains resulting from dynamic resource sharing across slices, both in terms of utility gains and capacity savings. We then address algorithmic and practical challenges in realizing the proposed criterion. We show that the objective is NP-hard, making an exact solution impractical, and design a distributed semi-online algorithm, which meets performance guarantees in equilibrium and can be shown to quickly converge to a region around the equilibrium point. Building on this algorithm, we devise a practical approach with limited computational information and handoff overheads. We use detailed simulations to show that our approach is indeed near-optimal and provides substantial gains both to tenants (in terms of capacity savings) and end users (in terms of improved performance).
PB IEEE
SN 1063-6692
YR 2017
FD 2017-10
LK https://hdl.handle.net/10016/28266
UL https://hdl.handle.net/10016/28266
LA eng
NO The work of P. Caballero and G. de Veciana was supported by NSF Award CNS-1343383, the work of A. Banchs and X. Costa-Pérez by the H2020-ICT-2014-2 5G NORMA (Grant Agreement No. 671584), and the work of A. Banchs was also partially supported by theSpanish project DRONEXT (Grant Agreement TEC2014-58964-C2-1-R).
DS e-Archivo
RD 27 jul. 2024