Results 31 to 40 of about 2,074 (252)
A survey on reconfigurable intelligent surfaces: Wireless communication perspective
IET Communications, 2023 Using reconfigurable intelligent surfaces (RISs) to improve the coverage and the data rate of future wireless networks is a viable option. These surfaces are constituted of a significant number of passive and nearly passive components that interact with ...
Saber Hassouna +9 more
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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
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Reconfigurable Intelligent Surfaces: Channel Characterization and Modeling
Proceedings of the IEEE, 2022 Reconfigurable intelligent surfaces (RISs) are two dimensional (2D) metasurfaces which can intelligently manipulate electromagnetic waves by low-cost near passive reflecting elements. RIS is viewed as a potential key technology for the sixth generation (6G) wireless communication systems mainly due to its advantages in tuning wireless signals, thus ...
Jie Huang 0004 +7 more
openaire +2 more sources
QRIS: A QuaDRiGa-Based Simulation Platform for Reconfigurable Intelligent Surfaces
IEEE Access, 2023 Reconfigurable Intelligent Surfaces (RISs) are a promising way to improve the performance of wireless networks. However, despite the high interest in the research community, no flexible enough simulation platform allows for studying the performance of ...
Ilya Burtakov +3 more
doaj +1 more source
Advances in Sustainable and Wearable Textile Based Soft Robotics
Advanced Functional Materials, EarlyView.This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas +6 more
wiley +1 more source
IEEE Access, 2023 The Reconfigurable Intelligent Surface (RIS) has recently gained traction as a promising, enabling technology for future sixth-generation (6G) mobile networks. Thereby, this paper presents a comprehensive statistical, secrecy, and performance analysis of
Murilo Alencar Alves Junior +4 more
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Advanced Functional Materials, EarlyView.Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou +6 more
wiley +1 more source
A Survey on Federated Learning in RIS, STAR-RIS, and BD-RIS-Assisted Wireless Networks
IEEE Open Journal of the Communications SocietyThe 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 +6 more
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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 +2 more
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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 +12 more
wiley +1 more source