Solving indefinite communication reliability optimization for RIS-aided mobile systems by an improved differential evolution

Trinh Van Chien, Bui Trong Duc, Ho Viet Duc Luong, Huynh Thi Thanh Binh*, Hien Quoc Ngo, Symeon Chatzinotas

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper exploits the applications of evolutionary algorithms to solve a challenging category of optimization problems in 6G mobile networks, particularly focusing on communication reliability with modulated signals of reconfigurable intelligent surface (RIS)-assisted multiple input multiple output (MIMO) systems. By deriving the analytical downlink symbol error rate (SER) of each user as a multivariate function of both the phase-shift and beam-forming vectors, we introduce a novel average SER minimization problem subject to the transmitted power budget and phase shift coefficients, which is NP-hard. By incorporating the differential evolution (DE) algorithm as a pivotal tool and an efficient local search to overcome the local optimum for optimizing the intricate active and passive beamforming variables, the non-convexity of the considered SER optimization problem can be effectively handled. Numerical results indicate that the proposed joint active and passive beamforming design is superior to the other benchmarks.

Original languageEnglish
Title of host publicationGECCO '24 Companion: Proceedings of the Genetic and Evolutionary Computation Conference Companion
PublisherAssociation for Computing Machinery
Pages651-654
Number of pages4
ISBN (Electronic)9798400704956
Publication statusPublished - 01 Aug 2024
EventGECCO '24 Companion: Genetic and Evolutionary Computation Conference Companion - Melbourne, Australia
Duration: 14 Jul 202418 Jul 2024

Publication series

NameGECCO 2024 Companion - Proceedings of the 2024 Genetic and Evolutionary Computation Conference Companion

Conference

ConferenceGECCO '24 Companion: Genetic and Evolutionary Computation Conference Companion
Country/TerritoryAustralia
CityMelbourne
Period14/07/202418/07/2024

Bibliographical note

Publisher Copyright:
© 2024 Copyright held by the owner/author(s).

Keywords

  • beamforming design
  • communication reliability
  • differential evolution
  • RIS-assisted MIMO

ASJC Scopus subject areas

  • Artificial Intelligence
  • Software
  • Control and Optimization
  • Discrete Mathematics and Combinatorics
  • Logic

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