Results 41 to 50 of about 2,026 (251)

A Survey on Federated Learning in RIS, STAR-RIS, and BD-RIS-Assisted Wireless Networks

IEEE Open Journal of the Communications Society
The advent of sixth-generation (6G) wireless networks has spurred growing interest in technologies capable of simultaneously meeting stringent requirements for capacity, latency, energy efficiency (EE), and security.
Isabel Francine Mendes, Diana Laura F. Duarte, Luiz Gustavo B. Guedes, Lucas S. Souza, Rafael S. Silva, Victoria D. P. Souto, Richard D. Souza   +6 more
doaj   +1 more source

Reconfigurable Intelligent Surface Aided Position and Orientation Estimation Based on Joint Beamforming With Limited Feedback

IEEE Open Journal of the Communications Society, 2023
The sparsity of millimeter wave (mmWave) channels in angular and temporal domains has been exploited for channel estimation, while the associated channel parameters can be utilized for localization.
Kunlun Li, Mohammed El-Hajjar, Lie-Liang Yang   +2 more
doaj   +1 more source

Machine Learning‐Assisted Inverse Design of Soft and Multifunctional Hybrid Liquid Metal Composites

Advanced Functional Materials, EarlyView.
A machine learning framework is presented for inverse design of synthesizable multifunctional composites containing both liquid metal and solid inclusions. By integrating physics‐based modeling, data‐driven prediction, and Bayesian optimization, the approach enables intelligent design of experiments to identify optimal compositions and realize these ...
Lijun Zhou, Yunsik Ohm, Ren‐Mian Chin, Olivia Kerr, Krithika Manohar, Mohammad H. Malakooti   +5 more
wiley   +1 more source

A Practical and Simple Detection and Identification Scheme for RIS-Assisted Systems

IEEE Open Journal of the Communications Society
Reconfigurable intelligent surface (RIS)-empowered communication is one of the promising physical layer enabling technologies for the upcoming sixth generation (6G) wireless networks due to their unprecedented capabilities in shaping the wireless ...
Aymen Khaleel, Recep Vural, Mehmet C. Ilter, Majid Gerami, Ertugrul Basar   +4 more
doaj   +1 more source

Dual‐Inductive and Programmable Switching: A New Paradigm in Ionic Interface‐Controlled Perovskite Memory

Advanced Functional Materials, EarlyView.
A fully programmable, dual‐inductive switchable halide perovskite memristor is demonstrated through precise BDAI2‐mediated interface engineering. This ion‐modulating layer suppresses stochastic filamentary growth, enabling stable, non‐filamentary switching via dynamic barrier modulation.
So‐Yeon Kim, Juan Bisquert
wiley   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

Oxidized MoS2‐Based Multifunctional Memristive Hardware for Energy‐Efficient mmWave Signal Processing and In‐Memory Matrix Multiplication

Advanced Functional Materials, EarlyView.
Thermally oxidized MoS2‐based radio‐frequency switches enable a multifunctional platform that unifies broadband RF switching and in‐memory computation. The device achieves a cutoff frequency of 33.2 THz with high energy efficiency and supports hardware‐aware signal processing.
Juho Son, Changwoo Pyo, Sungmoon Park, Yoongi Cho, Seungchan Lee, Myungsoo Kim   +5 more
wiley   +1 more source

Architecture for sub-100 ms liquid crystal reconfigurable intelligent surface based on defected delay lines

Communications Engineering
Reconfigurable intelligent surfaces, comprised of passive tunable elements, are emerging as an essential device for upcoming millimeter wave and terahertz wireless systems. A fundamental aspect of the device involves the tuning technology used to achieve
Robin Neuder, Marc Späth, Martin Schüßler, Alejandro Jiménez-Sáez   +3 more
doaj   +1 more source

AI-Driven Optimization of Wave-Controlled Reconfigurable Intelligent Surfaces

IEEE Open Journal of the Communications Society
A promising type of Reconfigurable Intelligent Surface (RIS) employs tunable control of its varactors using biasing transmission lines below the RIS reflecting elements.
Gal Ben-Itzhak, Miguel Saavedra-Melo, Ender Ayanoglu, Filippo Capolino, A. Lee Swindlehurst   +4 more
doaj   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source