Results 41 to 50 of about 109,932 (312)
Физика волновых процессов и радиотехнические системыBackground. Millimeter-wave communication systems are becoming more and more relevant in conditions of saturation of the low-frequency spectrum and growing requirements for data transmission speed.
Vladislav R. Skrynskij
doaj +1 more source
Hybrid Beamforming With Deep Learning for Large-Scale Antenna Arrays
IEEE Access, 2021 The emergence of highly directional beamforming technology makes millimeter wave frequency band communication possible in future wireless communication networks.
Rentao Hu, Lijun Jiang, Ping Li
doaj +1 more source
Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC
Advanced Functional Materials, EarlyView.The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi +9 more
wiley +1 more source
Radio over fibre distribution systems for ultra-wide band and millimetre wave applications [PDF]
, 2011 Short range wireless technology such as ultra-wideband (UWB) and 60 GHz millimetre wave (mm-wave) play a key role for wireless connectivity in indoor home, office environment or large enclosed public areas.
Shams Eldin, Haymen
core
Is fiber the catalyst for growth of the mobile wireless network? [PDF]
, 2015 This paper will focus on how the growth of the mobile wireless technology can be supported by optical fiber, through wireless over fiber technologies. The paper will include recent advances in the field of fiber-wireless convergence such as cloud-based ...
Ng, Wai Pang +3 more
core +1 more source
Correlation-based blind SINR estimation with statistical theoretic analysis for OFDM systems
EURASIP Journal on Advances in Signal ProcessingA blind signal-to-interference-plus-noise ratio (SINR) estimation method is proposed for orthogonal frequency division multiplex (OFDM) systems in the presence of impulse noise over multipath fading channels.
Shunli Hong +5 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
Electromagnetic signal propagation through lossy media via surface electromagnetic waves
Nanophotonics, 2023 A theory of surface electromagnetic waves in gradient media exhibiting arbitrary surface gradients of dielectric permittivity and magnetic permeability has been developed.
Smolyaninov Igor I. +3 more
doaj +1 more source
Shaping Matter with Acoustic Waves: From Particles to Functional Structures
Advanced Functional Materials, EarlyView.Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg +5 more
wiley +1 more source
Time resolution of cosmic noise observations with a correlation experiment [PDF]
, 2004 International audienceA radio wave correlation experiment using a Mills Cross technique can be used to observe the cosmic noise intensity from the ground for the purpose of determining the absorption in the ionosphere.
E. Nielsen +5 more
core +1 more source