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Joint Optimization Design for Active RIS-Assisted Maritime Secure ISAC System

  • School of Information Science and Engineering, Harbin Institute of Technology Weihai
  • Shandong Provincial Key Laboratory of Marine Electronic Information and Intelligent Unmanned Systems
  • Ministry of Industry and Information Technology
  • China Association of Communications Enterprises
  • Harbin Institute of Technology

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

Abstract

This research investigates the application of Integrated Sensing and Communication (ISAC) systems in maritime secure communication networks. Considering the severe path loss caused by complex maritime environments, we employ an active Reconfigurable Intelligent Surface (RIS) to establish supplementary communication links and enhance system performance. The primary objective is to maximize the sum secrecy rate (SSR) through the joint optimization of the hybrid precoding at the Dual-Function Base Station (DFBS) and the phase shift matrix of the active RIS, subject to both transmit power constraints and sensing performance requirements. We propose an alternating optimization algorithm based on fractional programming (FP) and successive convex approximation (SCA) techniques to solve this joint optimization problem. Numerical results demonstrate that the proposed algorithm achieves up to 10% SSR gain compared to passive RIS schemes, while maintaining excellent convergence performance.

Original languageEnglish
Title of host publication2025 IEEE 102nd Vehicular Technology Conference, VTC 2025-Fall - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798331503208
DOIs
StatePublished - 2025
Externally publishedYes
Event2025 IEEE 102nd Vehicular Technology Conference, VTC 2025 - Chengdu, China
Duration: 19 Oct 202522 Oct 2025

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1090-3038

Conference

Conference2025 IEEE 102nd Vehicular Technology Conference, VTC 2025
Country/TerritoryChina
CityChengdu
Period19/10/2522/10/25

Keywords

  • Integrated sensing and communication
  • hybrid precoding
  • reconfigurable intelligent surface
  • sum secrecy rate

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