Fronthaul for Cloud-RAN Enabling Network Slicing in 5G Mobile Networks

Line M. P. Larsen*, Michael Stübert Berger, Henrik Lehrmann Christiansen

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

This work considers how network slicing can use the network architecture Cloud-Radio Access Network (C-RAN) as an enabler for the required prerequisite network virtualization. Specifically this work looks at a segment of the C-RAN architecture called the fronthaul network. The fronthaul network required for network slicing needs to be able to dynamically assign capacity where it is needed. Deploying a fronthaul network faces a trade-off between fronthaul bitrate, flexibility, and complexity of the local equipment close to the user. This work relates the challenges currently faced in C-RAN research to the network requirements in network slicing. It also shows how using a packet-switched fronthaul for network slicing will bring great advantages and enable the use of different functional splits, while the price to pay is a minor decrease in fronthaul length due to latency constraints.

Original languageEnglish
Article number4860212
JournalWireless Communications and Mobile Computing
Number of pages8
ISSN1530-8669
DOIs
Publication statusPublished - 2018

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