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A joint weighted power detector for Willie in two-hop covert communication system
  • +2
  • Zehan Wan,
  • Ying Huang,
  • Jing Lei,
  • Ke Lai,
  • Luying Huang
Zehan Wan
National University of Defense Technology College of Electronic Science and Technology

Corresponding Author:wanzehan16@nudt.edu.cn

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Ying Huang
National University of Defense Technology College of Electronic Science and Technology
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Jing Lei
National University of Defense Technology College of Electronic Science and Technology
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Ke Lai
National University of Defense Technology
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Luying Huang
National University of Defense Technology College of Electronic Science and Technology
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Abstract

In this letter, a joint weighted power detector (JWPD) based on maximum a posterior probability (MAP) criteria is proposed for Willie aiming at two-hop covert communication scenario, which is a near optimal detector. Instead of only supervising one single phase, Willie combines the observations of two phases to make joint decision in the proposed scheme. The proposed scheme achieves lower probability of detection error (PDE) than the existing single-phase-detector (SPD) scheme and adding-power-directly-detector (APDD) scheme due to sufficient utilization of the two-phases observations. Numerical results demonstrate the benefit of our proposed scheme.
29 May 2022Submitted to Electronics Letters
30 May 2022Submission Checks Completed
30 May 2022Assigned to Editor
29 Jun 2022Reviewer(s) Assigned
01 Jul 2022Review(s) Completed, Editorial Evaluation Pending
03 Jul 2022Editorial Decision: Revise Minor
09 Jul 20221st Revision Received
12 Jul 2022Submission Checks Completed
12 Jul 2022Assigned to Editor
12 Jul 2022Review(s) Completed, Editorial Evaluation Pending
12 Jul 2022Editorial Decision: Accept
Sep 2022Published in Electronics Letters volume 58 issue 19 on pages 743-746. 10.1049/ell2.12584