Experimental evaluation of functional splits for 5G cloud-RANs

Centralized RAN processing has been identified as one of the major enablers for 5G mobile network access. By moving the baseband units (BBU) to the Cloud, multiple instances can be instantiated on the fly, serving several Remote Radio Head (RRH) units. The goal is to satisfy the existing demand of p...

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Main Authors: Makris, Nikos, Basaras, Pavlos, Korakis, Thanasis, Nikaein, Navid, Tassiulas, Leandros
Format: Conference Proceeding
Language:English
Subjects:
5G mobile communication
Cloud computing
Delays
IP networks
Long Term Evolution
Protocols
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Basaras, Pavlos
Korakis, Thanasis
Nikaein, Navid
Tassiulas, Leandros
description Centralized RAN processing has been identified as one of the major enablers for 5G mobile network access. By moving the baseband units (BBU) to the Cloud, multiple instances can be instantiated on the fly, serving several Remote Radio Head (RRH) units. The goal is to satisfy the existing demand of particular geographical areas, whereas drastically reducing the overall CAPEX and OPEX costs of the mobile operators. In this work, we present an experimental study of real Cloud-RAN deployments, with respect to different functional splits. We use as a reference architecture the 3GPP LTE stack, and argue about the functional split applicability in contemporary networks. We evaluate Layer 2 functional splits, that can be used for the convergence of multiple heterogeneous wireless technologies in an all-in-one unit. By deploying our approach in a real testbed setup, we extract the backhaul network transfer requirements for the different splits and present our experimental findings, compared with the respective simulation results.
doi_str_mv 10.1109/ICC.2017.7996493
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subjects 5G mobile communication
Cloud computing
Delays
IP networks
Long Term Evolution
Protocols
title Experimental evaluation of functional splits for 5G cloud-RANs
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