5G-XHaul: A Novel Wireless-Optical SDN Transport Network to Support Joint 5G Backhaul and Fronthaul Services

Daniel Camps Mur, J Gutierrez, Anna Tzanakaki, Paris Flegkas, Kostas Choumas, D Giatsios, Arash Farhadi Beldachi, Thierno Diallo, J Zou, Peter Legg, Jens Bartelt, Jay Kant Chaudhary, A Beltzler, J. J. Aleixendri, R Gonzalez, Dimitra Simeonidou

Research output: Contribution to journalArticle (Academic Journal)peer-review

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Abstract

The increased carrier bandwidth and the number of antenna elements expected in 5G networks require a redesign of the traditional IP-based backhaul and CPRI-based fronthaul interfaces used in 4G networks. We envision future mobile networks to encompass these legacy interfaces together with novel 5G RAN functional splits. In this scenario, a consistent transport network architecture able to jointly support backhaul and 4G/5G fronthaul interfaces is of paramount importance. In this article we present 5G-XHaul, a novel transport network architecture featuring wireless and optical technologies and a multi-technology software defined control plane, which is able to jointly support backhaul and fronthaul services. We have deployed and validated the 5G-XHaul architecture in a city-wide testbed in Bristol.
Original languageEnglish
Number of pages7
JournalIEEE Communications Magazine
Early online date27 May 2019
DOIs
Publication statusE-pub ahead of print - 27 May 2019

Keywords

  • radio access networks
  • 5G
  • fronthaul
  • backhaul
  • optical networks
  • SDN

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