Joint Secrecy and Latency Performance Analysis for UAV-Assisted Uplink NOMA-Based IoT Network with Mobile Edge Computing

This study jointly investigates the secrecy and latency performance of uplink nonorthogonal multiple access (NOMA)-based mobileedge computing (MEC) Internet of Things (IoT) system employing unmanned aerial vehicle (UAV). Specifically, this proposed system consists of two resource-limited edge devices (ED) that seek to offload their tasks to a UAV equipped with one MEC server in the presence of a passive eavesdropper. To evaluate the system’s secrecy and latency performance, we derive the closed-form expressions of secrecy successful computation probability (SSCP) and its upper bound. The Monte Carlo simulation results supported the accuracy of our study based on computer simulations according to various system parameters such as the average transmit signal-to-noise ratio (SNR), power allocation ratio, and altitude of UAV.