A Transmission Scheme Design for URLLC-Enabled Full-Duplex Relaying System

This letter investigates the wireless transmission scheme of an ultra-reliable low-latency communication (URLLC)-enabled two-hop system with channel estimation error, where an energy-constrained mobile device (ECMD) acts as a full-duplex relay. First, the block error rate (BLER) and energy efficiency (EE) are analyzed. Then, the transmission scheme design is formulated as a bi-objective optimization problem where the average transmit power, the length and power allocation between overhead pilot and data are jointly optimized to minimize the BLER of the first hop and maximize the EE of the ECMD. Simulation results demonstrate the BLER and EE performances, and transmission scheme solutions.