Outage prediction for URLLC in rayleigh fading

Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/GutachtenBeitrag in KonferenzbandBeigetragenBegutachtung

Abstract

A major challenge for the realization of ultra reliable low latency communications (URLLC) systems is the fast fading of wireless channels and the therewith associated outages. To overcome the fading, diversity concepts, as well as transmissions with low modulation order and low code rate are widely considered. However, these methods have an undeniably high resource consumption. In order to reduce it, fading prediction methods can be utilized as part of the scheduling strategy. We propose a novel outage prediction approach based on a Wiener filter that significantly helps to increase URLLC system monitoring and radio resource scheduling. In this paper we focus on Rayleigh fading channels and classical Doppler spectra. The proposed outage predictor is found to work on a wide range of sampling times and also with only a few observed fading samples available. During operation, future outage probabilities can be calculated beforehand and reliability guarantees can be made. Utilizing the proposed outage prediction method increases the achievable reliability of a link by several orders of magnitude compared to best effort transmissions on a single link. Links that are operable are well identified when little movement is present and prediction of several milliseconds is sufficient.

Details

OriginalspracheEnglisch
Titel2020 European Conference on Networks and Communications, EuCNC 2020
Herausgeber (Verlag)Institute of Electrical and Electronics Engineers (IEEE)
Seiten116-121
Seitenumfang6
ISBN (elektronisch)978-1-7281-4355-2
PublikationsstatusVeröffentlicht - Juni 2020
Peer-Review-StatusJa

Publikationsreihe

ReiheEuropean Conference on Networks and Communications (EuCNC)
ISSN2475-6490

Konferenz

Titel29th European Conference on Networks and Communications, EuCNC 2020
Dauer15 - 18 Juni 2020
StadtVirtual, Dubrovnik
LandKroatien

Externe IDs

Scopus 85093859711

Schlagworte

Schlagwörter

  • Channel prediction, CQI aging, Radio resource scheduling, URLLC