QoS-guaranteed 5G uplink radio resource scheduling algorithm for smart grid systems

To guarantee the quality of services (QoS) for multi-services in smart grid, this paper presents an uplink radio resource scheduling mechanism based on 5G communication system. The QoS requirements of different services are analyzed, based on which the uplink resource scheduling optimization problem is formulated to maximise service transmission satisfaction. The grant-free transmission mechanism for ultra-reliable low-latency communication (uRLLC) is introduced to ensure the performance requirements for delay-sensitive services. Moreover, a priority-based resource scheduling algorithm considering both throughput and delay for other services is proposed to meet the service requirements. The simulation results show that the proposed algorithm can reduce the uplink transmission delay of delay-sensitive services by 54% and improve the service transmission satisfaction by 19% compared with the traditional algorithm, which can effectively guarantee the service quality of the smart grid system.