Joint trajectory and communication design for secure UAV networks

Zhiyang Li*, Ming Chen, C. Pan, Nuo Huang, Zhaohui Yang, Arumugam Nallanathan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)


This letter investigates a joint optimization problem of unmanned aerial vehicle (UAV) flight trajectory, downlink transmission power, and ground terminals (GTs) association under wiretap channels. Specifically, we consider a scenario where a UAV serves a group of GTs and maximizes the minimum secrecy rate to ensure the fairness among GTs. To solve the nonconvex optimization problem, we develop an iterative algorithm based on the successive convex approximation and alternating methods. The simulation results demonstrate that the proposed algorithm is effective and can significantly improve the minimum secrecy rate compared with the traditional flight scheme.

Original languageEnglish
Article number8637952
Pages (from-to)636-639
Number of pages4
Issue number4
Early online date8 Feb 2019
Publication statusPublished - 1 Apr 2019


  • Joint optimization
  • Physical-layer security
  • Trajectory design
  • UAV communications


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