LTE/Wi-Fi coordination in unlicensed bands: an SD-RAN approach

Babak Mafakheri, Leonardo Goratti, Robert Abbas, Sam Reisenfeld, Roberto Riggio

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

4 Citations (Scopus)


In this article, we experimentally measure the throughput performance of a Wi-Fi, 802.11n, network when it is affected by LTE downlink transmissions. Our practical approach is based on a modular experimental test-bed. We initially compare our measurement results with the case without LTE interference; and further discuss that even the 3GPP features cannot guarantee coexistence in all cases and this might hamper the practicality of mobile technology in the unlicensed radio spectrum. For this reason, we enhance our test-bed introducing the Software-Defined Radio Access Network (SD-RAN) controller 5G-EmPOWER. Thus borrowing from the higher agility of software-defined networking. By using the SD-RAN control to adaptively tune LTE-eNB downlink transmission parameters, we experimentally prove the validity of this approach to improve Wi-Fi network throughput, as well as we shed light onto the new potentials that the SD-RAN controller can lead to automate network optimization.
Original languageEnglish
Title of host publicationProceedings of the 2019 IEEE Conference on Network Softwarization, NetSoft 2019, 24-28 June 2019 - Paris, France
Subtitle of host publicationUnleashing the Power of Network Softwarization
EditorsChristian Jacquenet, Filip De Turck, Prosper Chemouil, Flavio Esposito, Olivier Festor, Walter Cerroni, Stefano Secci
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages5
ISBN (Electronic)9781538693766
ISBN (Print)9781538693773
Publication statusPublished - 2019
EventIEEE International Conference on Network Softwarization (5th : 2019) - Paris, France
Duration: 24 Jun 201928 Jun 2019
Conference number: 5th


ConferenceIEEE International Conference on Network Softwarization (5th : 2019)
Abbreviated titleNetSoft 2019


  • Co-existence
  • LAA
  • SD -RAN
  • Wi-Fi
  • u-LTE
  • Unlicensed Bands


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