Publication: FluidRAN: Optimized vRAN/MEC Orchestration
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ISBN: 978-1-5386-4128-6 (Electronic)
ISBN: 978-1-5386-4129-3 (PoD)
Publication date
2018-10-11
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Tutors
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Publisher
IEEE
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Abstract
Virtualized Radio Access Network (vRAN) architectures constitute a promising solution for the densification needs
of 5G networks, as they decouple Base Stations (BUs) functions
from Radio Units (RUs) allowing the processing power to be
pooled at cost-efficient Central Units (CUs). vRAN facilitates
the flexible function relocation (split selection), and therefore
enables splits with less stringent network requirements compared
to state-of-the-art fully Centralized (C-RAN) systems. In this
paper, we study the important and challenging vRAN design
problem. We propose a novel modeling approach and a rigorous
analytical framework, FluidRAN, that minimizes RAN costs by
jointly selecting the splits and the RUs-CUs routing paths. We
also consider the increasingly relevant scenario where the RAN
needs to support multi-access edge computing (MEC) services,
that naturally favor distributed RAN (D-RAN) architectures.
Our framework provides a joint vRAN/MEC solution that
minimizes operational costs while satisfying the MEC needs. We
follow a data-driven evaluation method, using topologies of 3
operational networks. Our results reveal that (i) pure C-RAN is
rarely a feasible upgrade solution for existing infrastructure, (ii)
FluidRAN achieves significant cost savings compared to D-RAN
systems, and (iii) MEC can increase substantially the operator’s
cost as it pushes vRAN function placement back to RUs.
Description
Proceeding of: IEEE Conference on Computer Communications, INFOCOM 2018, Honolulu, Hawai, USA, 16-19 April 2018
Keywords
Delays, Copper, Routing, Topology, Computational modeling, Radio access networks, 5G mobile communication
Bibliographic citation
IEEE Conference on Computer Communications, INFOCOM 2018 [Proceedings], 9 Pp.