Results 81 to 90 of about 332,498 (295)
Beyond 5G Wireless Localization with Reconfigurable Intelligent Surfaces [PDF]
ICC 2020 - 2020 IEEE International Conference on Communications (ICC), 2020 5G radio positioning exploits information in both angle and delay, by virtue of increased bandwidth and large antenna arrays. When large arrays are embedded in surfaces, they can passively steer electromagnetic waves in preferred directions of space. Reconfigurable intelligent surfaces (RIS), which are seen as a transformative "beyond 5G" technology ...
Wymeersch, Henk, Denis, Benoit
openaire +4 more sources
Secure Networking with Software-Defined Reconfigurable Intelligent Surfaces
Sensors, 2023 Reconfigurable intelligent surfaces (RIS) are considered of paramount importance to improve air–ground and THz communications performance for 6G systems. Recently, RISs were proposed in Physical Layer Security (PLS), as they can (i) improve the secrecy capacity due to the controlled directional reflections’ capability of RIS elements and (ii) avoid ...
Francesco Chiti +2 more
openaire +4 more sources
Advanced Functional Materials, EarlyView.Heterojunctions combining halide perovskites with low‐dimensional materials enhance optoelectronic devices by enabling precise charge control and improving efficiency, stability, and speed. These synergies advance flexible electronics, wearable sensors, and neuromorphic computing, mimicking biological vision for real‐time image analysis and intelligent
Yu‐Jin Du +11 more
wiley +1 more source
On The Optimal Number of Reflecting Elements for Reconfigurable Intelligent Surfaces [PDF]
arXiv, 2020 This work considers a point-to-point link where a reconfigurable intelligent surface assists the communication between transmitter and receiver. The system rate, energy efficiency, and their trade-off are optimized with respect to the number of individually tunable elements of the intelligent surface.
arxiv
Ternary Transistors With Reconfigurable Polarities
Advanced Functional Materials, EarlyView.Polarity‐reconfigurable ternary transistors are demonstrated using black phosphorus homojunction with asymmetric contacts and split‐gate structures. Suppression of majority carrier injection, while Fowler–Nordheim tunneling of low‐density minority carriers persists, enables a well‐defined intermediate state with improved on/off ratios.
Dongju Yeom +11 more
wiley +1 more source
Reconfigurable intelligent surface-aided wireless communications: An overview (invited paper)
Intelligent and Converged Networks, 2022 The reconfigurable intelligent surface (RIS) is an emerging technology, which will hopefully bring a new revolution in wireless communications. The RIS technology can be deployed in an indoor/outdoor environment to dynamically manipulate the propagation ...
Muhammad Zain Siddiqi, Talha Mir
doaj +1 more source
Accurate Modelling of Reconfigurable Intelligent Surfaces in THz Band
2021 29th Signal Processing and Communications Applications Conference (SIU), 2021 Terahertz (THz) communication is considered to be a pivotal technology in new-generation communication networks. Due to its nature, THz waves attenuate significantly. A blockage will result in a significant power loss, therefore a line-of-sight (LOS) is required.
Celebi, Burak Ahmet +6 more
openaire +3 more sources
Advanced Healthcare Materials, EarlyView.This review explores how advanced materials enhance Bio‐FETs for precision healthcare and biosensing. It covers their working principles, surface functionalization, and ultra‐sensitive detection capabilities. The integration of flexible designs, AI, and IoT for real‐time monitoring is discussed, along with challenges like material reproducibility and ...
Minal Pandey +5 more
wiley +1 more source
Reconfigurable Intelligent Computational Surfaces: When Wave Propagation Control Meets Computing
, 2022 The envisioned sixth-generation (6G) of wireless networks will involve an intelligent integration of communications and computing, thereby meeting the urgent demands of diverse applications.
Alexandropoulos, George C. +8 more
core
Wireless 2.0: Towards an Intelligent Radio Environment Empowered by Reconfigurable Meta-Surfaces and Artificial Intelligence [PDF]
arXiv, 2020 We introduce "Wireless 2.0": The future generation of wireless communication networks, where the radio environment becomes controllable, programmable, and intelligent by leveraging the emerging technologies of reconfigurable metasurfaces and artificial intelligence (AI). This paper, in particular, puts the emphasis on AI-based computational methods and
arxiv