Results 31 to 40 of about 1,885,983 (159)

Ambient backscatter communications technology for batteryless IoT

open access: yes物联网学报, 2019
As one of the core enabling technologies supporting the batteryless Internet of things(IoT),ambient backscattering communication technology has the characteristics of low power consumption and low cost.Firstly,the basic concept of ambient backscattering ...
Qin TAO, Caijun ZHONG, Zhaoyang ZHANG
doaj   +2 more sources

Smart all-time vision: The battery-free video communication for urban administration and law enforcement

open access: yesDigital Communications and Networks, 2023
The Chinese government is dedicated to enhancing the level of informatization in administrative law enforcement to ensure fairness and increase credibility.
Yajie He   +7 more
doaj   +1 more source

6G and Beyond: The Future of Wireless Communications Systems

open access: yesIEEE Access, 2020
6G and beyond will fulfill the requirements of a fully connected world and provide ubiquitous wireless connectivity for all. Transformative solutions are expected to drive the surge for accommodating a rapidly growing number of intelligent devices and ...
Ian F. Akyildiz, Ahan Kak, Shuai Nie
doaj   +1 more source

Link Budget Validation for Backscatter-Radio System in Sub-1GHz [PDF]

open access: yes, 2019
Ambient backscatter communications system (ABCS) has recently been introduced as a cutting edge technology in which devices communicate in wireless mode by exploiting ambient radio frequency (RF) signals instead of actively generating them.
Sheikh, Muhammad Usman   +9 more
core   +1 more source

Backscatter technologies and the future of Internet of Things: Challenges and opportunities

open access: yesIntelligent and Converged Networks, 2020
Energy source and circuit cost are two critical challenges for the future development of the Internet of Things (IoT). Backscatter communications offer a potential solution to conveniently obtain power and reduce cost for sensors in IoT, and researchers ...
Chaochao Yao   +4 more
doaj   +1 more source

Dielectric Permittivity Tensor of Muscovite for Next Generation All Van Der Waals Broadband Photonic Components

open access: yesAdvanced Optical Materials, EarlyView.
Low‐index and low‐loss vdW muscovite represents an emerging robust dielectric platform for the creation of next‐generation all‐vdW nanophotonic architectures. Its utilization as a low‐index building‐block in all‐vdW multilayers enables extreme optical contrast when paired with MoS2, paving the way to the realization of few‐layer ultrathin DBS ...
Meri H. Hayrapetyan   +10 more
wiley   +1 more source

Remote Plasma‐Enabled Vertical Asymmetry Engineering of 2D PtSe2 via Phase‐Preserving Chalcogen Exchange

open access: yesSmall, EarlyView.
Remote H2S plasma enables temperature‐controlled chalcogen exchange in PtSe2. At 50°C, selective top‐surface Se‐to‐S substitution yields Janus PtSSe while preserving the layered framework, whereas treatment at 200°C promotes further sulfur incorporation and diffusion to form PtS2.
Dong‐hyun Kim   +28 more
wiley   +1 more source

Distributed acoustic sensing for marine mammal monitoring

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Marine mammal monitoring provides critical data to inform species management and sustainable industrial development. Passive acoustic monitoring, in particular, can provide continuous, long‐term and non‐observer‐biased data, with a subset of systems capable of delivering data in near‐real time.
Léa Bouffaut
wiley   +1 more source

Pattern-Based Decoding for Wi-Fi Backscatter Communication of Passive Sensors

open access: yesSensors, 2019
Ambient backscatter communication enables passive sensors to convey sensing data on ambient RF signals in the air at ultralow power consumption. To extract data bits from such signals, threshold-based decoding has generally been considered, but suffers ...
Hwanwoong Hwang   +3 more
doaj   +1 more source

Electrically Induced Photonic Assemblies of Faceted ZIF‐8 Crystals Exhibiting Binary Angle‐Dependent Structural Color and Metamerism

open access: yesAdvanced Optical Materials, Volume 14, Issue 41, 6 November 2026.
Electric fields drive dynamic photonic assemblies that reversibly generate structural color. By tuning nanoscale organization through controlled particle disorder, the presented system exhibits a unique binary color response, switching between blue and pink depending on viewing angle. Combined with metameric design, this allows for a two‐factor optical
Flora Schöfbeck   +9 more
wiley   +1 more source

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