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

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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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    Camps Mur, D., Gutierrez, J., Tzanakaki, A., Flegkas, P., Choumas, K., Giatsios, D., Farhadi Beldachi, A., Diallo, T., Zou, J., Legg, P., Bartelt, J., Chaudhary, J. K., Beltzler, A., Aleixendri, J. J., Gonzalez, R., & Simeonidou, D. (2019). 5G-XHaul: A Novel Wireless-Optical SDN Transport Network to Support Joint 5G Backhaul and Fronthaul Services. IEEE Communications Magazine. https://doi.org/10.1109/MCOM.2019.1800836