Results 161 to 170 of about 5,058,583 (266)

Phase shift optimization in reconfigurable intelligent surface-assisted UAV in hierarchical aerial computing networks. [PDF]

Sci Rep
Diaa B, Ibrahim II, Abdelhaleem AM, Abdelhakam MM.   +3 more
europepmc   +1 more source

A Scheme for Covert Communication with a Reconfigurable Intelligent Surface in Cognitive Radio Networks. [PDF]

Sensors (Basel)
Xu Y, Qian J, Zhu P.
europepmc   +1 more source

A Bio‐Inspired Visual Sensor With UV‐to‐NIR Fusion for Enhanced Recognition in Autonomous Driving Systems

Advanced Science, EarlyView.
Inspired by the sophisticated multilayer retinal architecture found in Pacific salmon eyes, a novel van der Waals heterojunction sensor based on NbNiTe5/BP is designed. Upon illumination at distinct wavelengths of 365 and 820 nm, the device exhibits distinctive bipolar photocurrent responses with opposite polarities. This unique optoelectronic behavior
Tianle Zeng, Zishen Zhao, Keqin Tang, Yawen Luo, Junxin Yan, Kun Ye, Jinlu Liu, Zhuo Dong, Zhipeng Yu, Weiming Lv, Ruicheng Li, Yenasheng Li, Lixuan Liu, Tianyu Xue, Chun Zhao, Yan Zhou, Kai Zhang, Zhongming Zeng, Zhongyuan Liu   +18 more
wiley   +1 more source

Breaking Through the Bottleneck of Wireless Physical-Layer Key Generation by Dynamic Agile Reconfigurable Intelligent Surface Antenna (DARISA). [PDF]

Entropy (Basel)
Ma Y, Wang HM.
europepmc   +1 more source

Non‐Uniform Space‐Time‐Coding Modulation for Low‐Complexity Diagnostics of Reconfigurable Intelligent Surfaces

Advanced Electronic Materials, EarlyView.
A diagnostic method for reconfigurable intelligent surfaces (RIS) based on non‐uniform space‐time‐coding modulation is presented. Fault localization is achieved via amplitude‐only spectral measurements, eliminating the need for complex signal processing. A one‐to‐one mapping between harmonic components and RIS elements enables accurate detection.
Xiao Qing Chen, Lei Zhang, Yi Ning Zheng, Bing Bing Zhu, Marco Rossi, Giuseppe Castaldi, Shuo Liu, Vincenzo Galdi, Tie Jun Cui   +8 more
wiley   +1 more source

Achievable Rate Optimization for Reconfigurable Intelligent Surface-Aided Multi-User Movable Antenna Systems. [PDF]

Sensors (Basel)
Yu L, Ren Y.
europepmc   +1 more source

A General and Efficient Framework for the Rapid Design of Miniaturized, Wideband, and High‐Bit RIS

Advanced Electronic Materials, EarlyView.
A general and efficient framework is proposed for the rapid design of high‐performance reconfigurable intelligent surfaces (RISs). This framework integrates advanced antenna design techniques and incorporates various load types, quantities, and values to achieve the design of high‐performance RISs.
Jun Wei Zhang, Zheng Xing Wang, Wanwan Cao, Zhen Jie Qi, Li Jie Wu, Han Qing Yang, Qun Yan Zhou, Si Ran Wang, Hui Dong Li, Jun Yan Dai, Jiang Luo, Jun Wei Wu, Jia Nan Zhang, Zhen Zhang, Qiang Cheng   +14 more
wiley   +1 more source

Graphene spatiotemporal reconfigurable intelligent surface (GSRIS) for terahertz polarization-state manipulation and holographic imaging. [PDF]

Nanoscale Adv
Ma T, Si L, Dang C, Niu R, Wu G, Bao X, Sun H, Zhu W.   +7 more
europepmc   +1 more source

Gambling on Reconfigurable Intelligent Surfaces

IEEE Communications Letters
openaire   +1 more source

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +1 more source