Results 61 to 70 of about 140,979 (333)

Inorganic Dielectric Materials Coupling Micro‐/Nanoarchitectures for State‐of‐the‐Art Biomechanical‐to‐Electrical Energy Conversion Devices

open access: yesAdvanced Materials, EarlyView.
Biomechanical‐to‐electrical energy conversion devices are uniquely suited for self‐driven physiological information monitoring and powering human–computer interaction systems. These devices based on micro‐/nanoarchitectured inorganic dielectric materials (MNIDMs) have shown ultrahigh electromechanical performance and thus great potential for practical ...
Jia‐Han Zhang   +12 more
wiley   +1 more source

Channel Model and Signal-Detection Algorithm for the Combined Effects of Turbulence and Link Misalignment in Underwater Optical Massive MIMO Systems

open access: yesJournal of Marine Science and Engineering, 2023
In recent years, underwater wireless optical communication (UWOC) has become a potential wireless carrier candidate for signal transmission in water mediums such as oceans.
Jielin Fu   +3 more
doaj   +1 more source

Organic Ferroelectric Synaptic Transistors for Neural Image Recognition Networks

open access: yesAdvanced Materials Interfaces, EarlyView.
All organic transistors, where both the dielectric and semiconducting layers are polymeric, are developed as electrical synaptic devices. Two copolymers of PVDF as the dielectric layer with large differences in their saturation polarizability and memory window are chosen.
Evan Restuccia   +2 more
wiley   +1 more source

On d-ary tree algorithms with successive interference cancellation [PDF]

open access: yesarXiv, 2022
In this paper, we outline the approach for the derivation of the length of the collision resolution interval for d-ary tree algorithms (TA) with gated access and successive interference cancellation (SIC), conditioned on the number of the contending users. This is the basic performance parameter for TA with gated access. We identify the deficiencies of
arxiv  

Probabilistic Analysis on Successive Cancellation-Assisted Transmitter Identification in SFN With Randomly Distributed Co-Channel Interferers

open access: yesIEEE Access, 2020
This paper investigates the detection error of radio frequency (RF)-watermark type transmitter identification (TxID) signal in a single frequency network (SFN).
Sungjun Ahn   +4 more
doaj   +1 more source

Large Electrogyration Effect in Ferroaxial NiTiO3 at Near Infrared Wavelengths

open access: yesAdvanced Optical Materials, EarlyView.
A large electrogyration effect (electric field‐induced optical rotation) is observed in a ferroaxial crystal NiTiO3 at near infrared wavelengths. The Ni2+ d‐d transitions, featuring strong magnetic dipole character, play an important role in producing the pronounced effect.
Takeshi Hayashida   +2 more
wiley   +1 more source

Spin‐Orbit Photonics with Potato Starch Lenses

open access: yesAdvanced Optical Materials, EarlyView.
Native potato starch spherulites are introduced as volumetric optical elements that modulate both dynamic and geometric phases of light. These spherulites focus light and generate optical vortices via spin‐orbit interaction, functioning as polarization‐sensitive microlenses. Their unique radial anisotropy enables applications in vortex beam generation,
Petr Bouchal   +4 more
wiley   +1 more source

Improved Successive Interference Cancellation for MIMO/UWB-Based Wireless Body Area Network

open access: yesInternational Journal of Antennas and Propagation, 2012
In body area networks, various sensors are attached to clothing or on the body or even implanted under the skin. The sensors measure such as heart beat, the record of prolonged electrocardiogram, blood pressure, and so on.
M. Jayasheela, A. Rajeswari
doaj   +1 more source

Power Minimization in Distributed Antenna Systems Using Non-Orthogonal Multiple Access and Mutual Successive Interference Cancellation [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2018
This paper introduces new approaches for combining non-orthogonal multiple access with distributed antenna systems. The study targets a minimization of the total transmit power in each cell, under user rate and power multiplexing constraints. Several new
J. Farah   +3 more
semanticscholar   +1 more source

Optical Chaos Generation and Applications

open access: yesAdvanced Photonics Research, EarlyView.
This review comprehensively examines optical chaos generation via feedback, injection, and optoelectronic methods, emphasizing bandwidth enhancement and time‐delay suppression. Applications include chaos‐synchronized secure communication, physical random number generation, chaotic lidar for cm‐level detection, distributed fiber sensing, and terahertz ...
Wenhui Chen   +8 more
wiley   +1 more source

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