Dual-Functional Waveform Design for STAR-RIS Aided ISAC via Deep Reinforcement Learning

Jifa Zhang, Shiqi Gong, Weidang Lu, Chengwen Xing, Nan Zhao*, Derrick Wing Kwan Ng, Dusit Niyato

*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

Integrated sensing and communication (ISAC) technology effectively enables spectrum and hardware sharing between radar and communication. This paper investigates the dual-functional (DF) constant modulus waveform design for simultaneously transmitting and reconfigurable intelligent surface (STAR-RIS)-aided ISAC, in which the channel information can be used as semantic information. To investigate the performance trade-off, the weighted sum of multi-user interference (MUI) energy and waveform discrepancies is minimized via jointly optimizing the transmit waveform and the reflection and transmission coefficient matrices at STAR-RIS. Furthermore, a practical case of coupled phase shifts at STARRIS is investigated. We first formulate the optimization problem as a Markov decision process, employing a twin delayed deep deterministic policy gradient (TD3)-based deep reinforcement learning approach to address it. Simulation results verify the effectiveness of the proposed scheme.

Original languageEnglish
Title of host publication2024 IEEE 35th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350362244
DOIs
Publication statusPublished - 2024
Event35th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2024 - Valencia, Spain
Duration: 2 Sept 20245 Sept 2024

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
ISSN (Print)2166-9570
ISSN (Electronic)2166-9589

Conference

Conference35th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2024
Country/TerritorySpain
CityValencia
Period2/09/245/09/24

Keywords

  • Deep reinforcement learning
  • integrated sensing and communication
  • STAR-RIS
  • waveform design

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Zhang, J., Gong, S., Lu, W., Xing, C., Zhao, N., Ng, D. W. K., & Niyato, D. (2024). Dual-Functional Waveform Design for STAR-RIS Aided ISAC via Deep Reinforcement Learning. In 2024 IEEE 35th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2024 (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PIMRC59610.2024.10817375