Packet Error Probability and Effective Throughput for Ultra-Reliable and Low-Latency UAV Communications

In this paper, we study the average packet error probability (APEP) and effective throughput (ET) of control link in unmanned-aerial-vehicle (UAV) communications, where ground central station (GCS) sends signals to UAV that requires ultra-reliable low-latency communications (URLLC). To ensure low latency, short packets are adopted for signal. As a result, Shannon capacity theorem cannot be here due its assumption infinite channel blocklength. We consider both free space (FS) 3-Dimensional (3D) models by assuming locations randomly distributed within restricted space. first characterize statistical characteristics signal-to-noise ratio (SNR) FS 3D models. Then, closed-form analytical expressions APEP ET derived using Gaussian-Chebyshev quadrature. Also, lower bounds obtain more insights. Finally, optimal value length with objective maximizing applying one-dimensional search. Our results verified Monte-Carlo simulations.