DRL-based STAR-RIS-Assisted ISAC Secure Communications

Zhengyu Zhu, Mengfei Gong, Zheng Chu, Pei Xiao, Gangcan Sun, De Mi, Ziming He, Fei Tong

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

Abstract

In this paper, we explore a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)-Assisted integrated sensing and communication (ISAC) secure communication system. The average long-Term security rate of the legitimate user (LU) is maximized by jointly designing the receive filters and transmit beamforming of the base station (BS), and the transmitting and reflecting coefficients of STAR-RIS, and in the meantime, guaranteeing the lower bound of echo signal-To-noise ratio (SNR) and the achievable rate of LU constraint. We propose to apply two deep reinforcement learning (DRL) algorithms to solve the complex non-convex problem and maximize the long-Term benefits of the system by optimizing the BS beamforming and STAR-RIS phase shifts. The simulation results thoroughly evaluate the performance of two DRL algorithms and demonstrate that STAR-RIS outperforms the conventional reconfigurable intelligent surface (RIS) in comparison with two benchmarks.

Original languageEnglish
Title of host publication2023 International Conference on Ubiquitous Communication, Ucom 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages127-132
Number of pages6
ISBN (Electronic)9798350340433
DOIs
Publication statusPublished - 2023
Externally publishedYes
Event2023 International Conference on Ubiquitous Communication, Ucom 2023 - Xi�an, China
Duration: 7 Jul 20239 Jul 2023

Publication series

Name2023 International Conference on Ubiquitous Communication, Ucom 2023

Conference

Conference2023 International Conference on Ubiquitous Communication, Ucom 2023
Country/TerritoryChina
CityXi�an
Period7/07/239/07/23

Keywords

  • deep reinforcement learning (DRL)
  • integrated sensing and communication (ISAC)
  • secrecy rate
  • simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Safety, Risk, Reliability and Quality
  • Control and Optimization
  • Instrumentation

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