A Learning Approach Towards Secure Cognitive Networks with UAV Relaying and Active Jamming

Na Liu, Xiao Tang, Dongyang Xu, Dawei Wang, Daosen Zhai, Ruonan Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Confidentiality of information flowing over the air is becoming a critical issue in cognitive radio (CR) towards future 5G networks. In this paper, we employ an unmanned aerial vehicle (UAV) relay to enhance information security in an underlay CR network without direct links. We propose a deep Q network (DQN)-based secure transmission scheme which jointly optimizes the jamming power of secondary receiver (SR) and the deployment of UAV to maximize secrecy rate. Due to the nonconvex nature of the formulated problem, we decompose it into two-layer sub-problems where the inner layer is to optimize the jamming power while the outer layer is to design the deployment of the UAV. A bi-section search algorithm is developed to solve the inner layer jamming sub-problem and a deep Q-learning algorithm is designed to approximate the optimal UAV deployment as the outer problem. Finally, numeric simulations are provided to demonstrate the performance superiorities of our proposal in terms of secrecy rate as compared with the baselines.

Original languageEnglish
Title of host publication13th International Conference on Wireless Communications and Signal Processing, WCSP 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665407854
DOIs
StatePublished - 2021
Event13th International Conference on Wireless Communications and Signal Processing, WCSP 2021 - Virtual, Online, China
Duration: 20 Oct 202122 Oct 2021

Publication series

Name13th International Conference on Wireless Communications and Signal Processing, WCSP 2021

Conference

Conference13th International Conference on Wireless Communications and Signal Processing, WCSP 2021
Country/TerritoryChina
CityVirtual, Online
Period20/10/2122/10/21

Keywords

  • active jamming
  • cognitive radio
  • deep-learning
  • Physical layer security
  • UAV relaying

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