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Joint Trajectory and Power Design for Secure UAV-Enabled Multicasting

Ke WANG, Wei HENG

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Summary :

This letter studies the physical layer security of an unmanned aerial vehicle (UAV)-enabled multicasting system, where a UAV serves as a mobile transmitter to send a common confidential message to a group of legitimate users under the existence of multiple eavesdroppers. The worst situation in which each eavesdropper can wiretap all legitimate users is considered. We seek to maximize the average secrecy rate by jointly optimizing the UAV's transmit power and trajectory over a given flight period. The resulting optimization problem is nonconvex and intractable to solve. To circumvent the nonconvexity, we propose an iterative algorithm to approximate the solution based on the alternating optimization and successive convex approximation methods. Simulation results validate the convergence and effectiveness of our proposed algorithm.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E103-A No.6 pp.860-864
Publication Date
2020/06/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.2019EAL2166
Type of Manuscript
LETTER
Category
Mobile Information Network and Personal Communications

Authors

Ke WANG
  Southeast University
Wei HENG
  Southeast University

Keyword