Secrecy Analysis of Control Information for UAV

In this correspondence, we investigate the average achievable secrecy rate (AASR) and average effective secrecy throughput (AEST) of the control link from the ground control station to the unmanned aerial vehicle (UAV), which requires ultra-reliable and low-latency communications. Both the UAV and eavesdropper are assumed to be randomly distributed within the restricted areas, and short packet transmission is adopted to guarantee the low latency. We consider both free space and 3-Dimensional channel models for the UAV, and the statistic distribution functions of both models are given. By using Gaussian-Chebyshev quadrature (GCQ), the approximation expressions of AASR are derived to give insight on the design of packet size. Moreover, analytical expressions of ASET are also developed to evaluate the effective secrecy performance. Numerical results corroborate the correctness of our derived results.