[en] This research exploits the applications of reconfig-
urable intelligent surface (RIS)-assisted multiple input multiple
output (MIMO) systems, specifically addressing the enhancement
of communication reliability with modulated signals. Specifically,
we first derive the analytical downlink symbol error rate (SER)
of each user as a multivariate function of both the phase-shift
and beamforming vectors. The analytical SER enables us to
obtain insights into the synergistic dynamics between the RIS
and MIMO communication. We then introduce a novel average
SER minimization problem subject to the practical constraints
of the transmitted power budget and phase shift coefficients,
which is NP-hard. By incorporating the differential evolution
(DE) algorithm as a pivotal tool for optimizing the intricate
active and passive beamforming variables in RIS-assisted com-
munication systems, the non-convexity of the considered SER
optimization problem can be effectively handled. Furthermore,
an efficient local search is incorporated into the DE algorithm
to overcome the local optimum, and hence offer low SER and
high communication reliability. Monte Carlo simulations validate
the analytical results and the proposed optimization framework,
indicating that the joint active and passive beamforming design
is superior to the other benchmarks.
Disciplines :
Computer science
Author, co-author :
Van Chien, Trinh; School of Information and Communication Technology (SoICT), Hanoi University of Science and Technology (HUST), Vietnam
Bui Trong Duc; School of Information and Communication Technology (SoICT) Hanoi University of Science and Technology (HUST) Hanoi, Vietnam
Ho Viet Duc Luong; School of Information and Communication Technology (SoICT) Hanoi University of Science and Technology (HUST) Hanoi, Vietnam
Huynh Thi Thanh Binh; School of Information and Communication Technology (SoICT) Hanoi University of Science and Technology (HUST) Hanoi, Vietnam
Hien Quoc Ngo; Centre for Wireless Innovation (CWI) Queen’s University Belfast Belfast, U.K.
CHATZINOTAS, Symeon ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
External co-authors :
yes
Language :
English
Title :
Active and Passive Beamforming Designs for SER Minimization in RIS-Assisted MIMO Systems
Publication date :
17 October 2024
Journal title :
IEEE Transactions on Wireless Communications
ISSN :
1536-1276
eISSN :
1558-2248
Publisher :
Institute of Electrical and Electronics Engineers, United States - New York
Master, PhD Scholarship Programme of Vingroup Innovation Foundation (VINIF) RISOTTI The Reconfigurable Intelligent Surfaces for Smart Cities Research and Innovation Future Leaders Fellowships The Office of Naval Research (ONR) Global (ONRG) and the U.S. Army Combat Capabilities Development Command Indo-Pacific (DEVCOM Indo-Pacific)
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