Resource Allocation and Trajectory Optimization for UAV-Enabled Multi-User Covert Communications

Xu Jiang, Zhutian Yang, Nan Zhao, Yunfei Chen, Zhiguo Ding, Xianbin Wang

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

In this correspondence, covert air-to-ground communication is investigated to hide the wireless transmission from unmanned aerial vehicle (UAV). The warden's total detection error probability with limited observations is first analyzed. Considering the location uncertainty of the warden, a robust resource allocation and UAV trajectory optimization problem with worst-case covertness constraint is then formulated to maximize the average covert rate. To solve this optimization problem, we propose a block coordinate descent method based iterative algorithm to optimize the time slot allocation, power allocation and trajectory alternately. Numerical results demonstrate the effectiveness of the proposed algorithm in covert communication for UAVs.

Original languageBritish English
Article number9334412
Pages (from-to)1989-1994
Number of pages6
JournalIEEE Transactions on Vehicular Technology
Volume70
Issue number2
DOIs
StatePublished - Feb 2021

Keywords

  • Covert communication
  • resource allocation
  • trajectory optimization
  • unmanned aerial vehicle

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