Dynamic Outer Loop Link Adaptation for the 5G Centimeter-Wave Concept

Marta Gatnau, Davide Catania, Frank Frederiksen, Andrea Fabio Cattoni, Gilberto Berardinelli, Preben Mogensen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

8 Citations (Scopus)
3 Downloads (Pure)

Abstract

A 5th generation (5G) of wireless communication systems is expected to be introduced around 2020 to cope with a rapid increase of mobile data traffic. One of the main challenges of our envisioned 5G centimeter-wave concept is a large signal to interference plus noise ratio (SINR) variability, due to a flexible uplink/downlink (UL/DL) scheduler that aims at dynamically accommodating the traffic while reducing the latency. The use
of advanced receivers and recovery mechanisms has been proved not to be sufficient to deal with such variability. In this paper, the potential of outer loop link adaptation (OLLA) to cope with the aforementioned problem is studied, and a dynamic OLLA (d-OLLA) algorithm is proposed. System level simulations show that d-OLLA provides an average throughput gain of up to 23% and 16.6% when using fixed rank 1 and rank 2, respectively,
and 20.7% gain with rank adaptation, without adding extra complexity in the system.
Original languageEnglish
Title of host publicationProceedings of European Wireless 2015; 21th European Wireless Conference
Number of pages6
PublisherVDE Verlag GMBH
Publication dateMay 2015
ISBN (Print)978-3-8007-3976-9
Publication statusPublished - May 2015
EventEuropean Wireless 2015 - Budapest, Hungary
Duration: 20 May 201522 May 2015
Conference number: 21
http://ew2015.european-wireless.org/

Conference

ConferenceEuropean Wireless 2015
Number21
Country/TerritoryHungary
CityBudapest
Period20/05/201522/05/2015
Internet address

Keywords

  • OLLA
  • 5G
  • centimeter-wave
  • dynamic

Fingerprint

Dive into the research topics of 'Dynamic Outer Loop Link Adaptation for the 5G Centimeter-Wave Concept'. Together they form a unique fingerprint.

Cite this