Dual-mode Ultra Reliable Low Latency Communications for Industrial Wireless Control

Liang Zhou, Olav Tirkkonen, Ulo Parts, Saeed R. Khosravirad, Paolo Baracca, Dani Korpi, Mikko Uusitalo

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

54 Lataukset (Pure)

Abstrakti

This paper studies communications service availability for industrial wireless control systems. We consider a motion controller with a continuous closed-loop control link to a group of actuator devices on a factory floor. The goal is to satisfy end-to-end latency for each packet and to guarantee that the communication service will not be un-available for longer than a survival time. We propose to decouple the scheduling operation between the normal and survival modes of operation, enabling a dual-mode ultra-reliable and low-latency communications (URLLC) scheduler. Scheduler strategies for the survival mode are presented, targeting link adaptation and signal to interference and noise ratio (SINR) estimation in presence of temporal and spatial channel correlation. Through numerical examples, we investigate the impact of channel correlation on the schedulers ability to target the required reliability for each mode. We further present our findings on system-level performance evaluation of such scheduling strategies by adopting a realistic system setup and channel model to obtain insights with high level of realism. Extensive simulation results are presented which demonstrate significant reduction in resource utilization with the proposed dual-mode scheduler when compared to single-mode URLLC scheduling. Specifically, our results demonstrate that the scheduler should target moderate packet error rate (PER) for normal mode of operation and very low PER for the survival mode; the latter guarantees service availability while the former saves radio resources.

AlkuperäiskieliEnglanti
Otsikko2022 IEEE 95th Vehicular Technology Conference - Spring, VTC 2022-Spring - Proceedings
KustantajaIEEE
Sivumäärä7
ISBN (elektroninen)978-1-6654-8243-1
DOI - pysyväislinkit
TilaJulkaistu - 2022
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaIEEE Vehicular Technology Conference - Helsinki, Suomi
Kesto: 19 kesäk. 202222 kesäk. 2022
Konferenssinumero: 95

Julkaisusarja

NimiIEEE Vehicular Technology Conference
ISSN (painettu)1090-3038
ISSN (elektroninen)2577-2465

Conference

ConferenceIEEE Vehicular Technology Conference
LyhennettäVTC
Maa/AlueSuomi
KaupunkiHelsinki
Ajanjakso19/06/202222/06/2022

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