Cell-Free Massive MIMO SWIPT With Beyond Diagonal Reconfigurable Intelligent Surfaces [PDF]
IEEE Transactions on CommunicationsWe investigate the integration of beyond-diagonal reconfigurable intelligent surfaces (BD-RISs) into cell-free massive multiple-input multiple-output (CF-mMIMO) systems to enhance simultaneous wireless information and power transfer (SWIPT).
Thien Duc Hua +3 more
semanticscholar +1 more source
Pinching Antenna Systems Versus Reconfigurable Intelligent Surfaces in mmWave [PDF]
IEEE Wireless Communications LettersFlexible and intelligent antenna designs, such as pinching antenna systems and reconfigurable intelligent surfaces (RIS), have gained extensive research attention due to their potential to enhance the wireless channels.
Mostafa Samy +5 more
semanticscholar +1 more source
Configuring reconfigurable intelligent surfaces using a practical codebook approach
Scientific Reports, 2023 It is proven that the scattering, reflection, and refraction properties of electromagnetic signals can be adapted and managed by using reconfigurable intelligent surfaces (RISs).
Saber Hassouna +4 more
doaj +1 more source
Enabling NOMA in Backscatter Reconfigurable Intelligent Surfaces-Aided Systems
IEEE Access, 2021 One of the key enablers of future wireless communications is constituted by massive users can access the core network in wireless systems simultaneously, which can improve the spectral efficiency.
Chi-Bao Le +5 more
doaj +1 more source
Successive Decode-and-Forward Relaying with Reconfigurable Intelligent Surfaces [PDF]
, 2022 peer ...
OTTERSTEN, Björn +5 more
core +1 more source
Hardware Aspects of Sub-THz Antennas and Reconfigurable Intelligent Surfaces for 6G Communications
IEEE Journal on Selected Areas in Communications, 2023 The need for unrestricted, high-quality, and high-speed communications in planned sixth generation (6G) wireless systems drives the development and research towards the sub-terahertz (sub-THz) bands which so far have been relatively unused for wireless ...
Kimmo Rasilainen +4 more
semanticscholar +1 more source
Machine Learning Approaches for Reconfigurable Intelligent Surfaces: A Survey
IEEE Access, 2022 Next-generation wireless networks must handle a growing density of mobile users while accommodating a rapid increase in mobile data traffic flow and a wide variety of services and applications.
K. M. Faisal, Wooyeol Choi
doaj +1 more source
Reconfigurable wideband patch antenna for cognitive radio [PDF]
, 2009 Cognitive radio communication is envisaged to be a new paradigm of methodologies for enhancing the performance of radio communication systems through the efficient utilization of radio spectrum.
AbuTarboush, HF +14 more
core +1 more source
Advanced Functional Materials, EarlyView.Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang +9 more
wiley +1 more source
Electrically Induced Phase Transition and Synaptic Functionality in MoTe2/Graphene Memristors
Advanced Functional Materials, EarlyView.An electrically induced reversible 2H ↔ 1T′ phase transition is demonstrated in a vertical Au/Ti/MoTe2/graphene memristor with a laterally contacted graphene electrode. Resistive switching proceeds through a compositionally invariant amorphous/2H ↔ amorphous/1T′ transformation, in which a self‐formed amorphous MoTe2 interfacial region is proposed to ...
Chien‐Hua Wang +7 more
wiley +1 more source