Dynamic Communication QoS Design for Real-Time Wireless Control Systems

Chang, Bo, Zhao, Guodong, Zhang, Lei, Imran, Muhammad Ali, Chen, Zhi and Li, Emma (2020) Dynamic Communication QoS Design for Real-Time Wireless Control Systems. IEEE Sensors Journal, 20 (6). pp. 3005-3015. ISSN 1530-437X

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Official URL: https://doi.org/10.1109/JSEN.2019.2957569

Abstract

In the coming fifth-generation (5G) cellular networks, ultra-reliable and low-latency communication (URLLC) is treated as an indispensable service to enable real-time wireless control systems. However, the extremely high quality-of-service (QoS) in URLLC causes significant wireless resource consumption. Moreover, to obtain good control performance may not always require extremely high communication QoS. In this paper, we propose a communication-control co-design scheme to reduce wireless resource consumption, where we obtain a dynamic communication QoS design method to reduce the energy consumption by jointly using extremely high QoS and a relatively low QoS. In this scheme, we first explore the control process served by different communication QoS levels and find that the whole control process can be divided into two phases, where different QoS levels have their advantages in different phases. Then, we obtain a threshold to decide when the extremely high QoS or relatively low QoS should be provided by communications. Simulation results demonstrate that our method can effectively reduce communication energy consumption while maintaining good control performance.

Item Type: Article
Uncontrolled Keywords: co-design, dynamic QoS allocation, real-time wireless control, URLLC
Subjects: F300 Physics
H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Elena Carlaw
Date Deposited: 12 May 2020 09:56
Last Modified: 12 May 2020 10:00
URI: http://nrl.northumbria.ac.uk/id/eprint/43076

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