Network-Controlled Repeater Aided Time-Sensitive Communications in Urban Vehicular Networks

Abstract

Delivering time-sensitive (TS) information deterministically is vital for safety-related critical applications like vehicular networks. This letter presents a latency model for the TS packet delivery from the edge server to the vehicle. The Network-Controlled Repeater (NCR) is used to assist the packet delivery over random wireless channels where the finite-length packet transmission is considered. Simulations demonstrate the significant improvement of NCR in terms of success ratio for TS packet delivery and reveal key influencing factors, such as packet size and queuing delay at the edge server. This offers valuable insights for efficient multi-user scheduling while considering performance and resource constraints in practical TS communications.