Joint Transmit Power and Trajectory Design for UAV-Enabled Covert Communication

IEEE Wireless Communications and Networking Conference, pp. 1–6

Abstract

In this paper, we study an unmanned aerial vehicle (UAV)-enabled covert communication network in which a UAV communicates to multiple ground users (GUs) without being detected by a ground detector. Considering the fairness, we aim at a joint UAV trajectory and transmit power design to maximize the minimum throughput among all GUs under constraints including mobility and covertness. By characterizing the covertness constraint, the joint design problem is transformed to a pure trajectory design which is still non-convex and with infinite number of variables. To address the problem, we adopt the optimal successive-hover-and-fly (SHF) trajectory structure to reformulate it to a new one with limited number of variables, and efficiently solve the reformulated problem via introducing a set of tight convex approximations to the problem and applying the successive convex approximation (SCA) method. Simulation results show the high performance with respect to covert communication throughput and the low complexity of proposed design in comparison to the benchmark.

Authors 5

1. Peng Wu Aachen INDA Institute

   Wuhan University · RWTH Aachen University

   Affiliation as printed

   Wuhan University,School of Electronic Information,China

   INDA Institute, RWTH Aachen University, Germany

   School of Electronic Information, Wuhan University, China

2. Xiaopeng Yuan Aachen INDA Institute

   Wuhan University · RWTH Aachen University

   Affiliation as printed

   Wuhan University,School of Electronic Information,China

   INDA Institute, RWTH Aachen University, Germany

   School of Electronic Information, Wuhan University, China

3. Yulin Hu Aachen INDA Institute

   Wuhan University · RWTH Aachen University

   Affiliation as printed

   Wuhan University,School of Electronic Information,China

   INDA Institute, RWTH Aachen University, Germany

   School of Electronic Information, Wuhan University, China

4. Hu Chen

   Wuhan Ship Development & Design Institute

   Affiliation as printed

   Wuhan Second Ship Design and Reserach Institute,China

   Wuhan Second Ship Design and Reserach Institute, China

5. Anke Schmeink Aachen INDA Institute

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University,INDA Institute,Germany

   INDA Institute, RWTH Aachen University, Germany