Results 91 to 100 of about 4,524,836 (233)

Hybrid backscatter communication for IoT devices in remote areas. [PDF]

Heliyon, 2023
Gupta G, Balyan V.
europepmc   +1 more source

Automatic insect identification, counting, and monitoring techniques: a review

Pest Management Science, EarlyView.
Automated insect monitoring increasingly integrates optical, acoustic, infrared, radar, electrostatic, and biosensing technologies with artificial intelligence. No single approach is universally optimal; reliable deployment depends on task‐specific validation, representative datasets, robustness under field conditions, energy autonomy, connectivity ...
Mariano González García, Juan Carlos Noguera Polania, Rosana González Combarros, José Ignacio López Sánchez   +3 more
wiley   +1 more source

Energy-Efficient Cell-Free Integrated Sensing and Backscatter Communication for Sustainable Networks

Energies
The rapid expansion of smart city infrastructures and Internet of Things (IoT) networks has led to extremely dense wireless deployments, driving unsustainable energy consumption and exacerbating environmental concerns.
Mahnoor Anjum, Deepak Mishra
doaj   +1 more source

Characterization of Rain Attenuation for Millimeter Wavelengths for Realistic Nonrotational Symmetric Drop Shapes

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The use of frequencies above 30 GHz (millimeter waves) for communication purposes is nowadays a necessity, both for terrestrial (e.g., 5G/6G) and satellite links. One reason is the need for more bandwidth and the fact that “traditional” frequency bands are already fully occupied.
Franz Teschl, Anđela Šević, Merhala Thurai, Michael Schönhuber   +3 more
wiley   +1 more source

Relay Selection for Dual-Hop Cooperative Ambient Backscatter Communication Systems. [PDF]

Sensors (Basel), 2023
Yang P, Kuang W, Wang S.
europepmc   +1 more source

Intelligent Continuum Micromachines in Complex Confined Spaces

SmartBot, EarlyView.
The cover depicts a conceptual design for an intelligent continuum micromachine entering a target capsule used in fusion‐energy research through its slender gas‐fill tube. By combining route‐adaptive deformation, embedded sensing, and a functional end effector, the robot could inspect hidden defects, assess local conditions, and support localized ...
Huayang Sai, Yunyue Yang, Shuxing Xu, Jinbo Hu, Jiliang Wang, Zhehao Gan, Wei Tang, Tian‐Yun Huang   +7 more
wiley   +1 more source

Ultra-Wideband Underwater Backscatter via Piezoelectric Metamaterials

, 2020
We present the design, implementation, and evaluation of U2B, a technology that enables ultra-wideband backscatter in underwater environments. At the core of U2B's design is a novel metamaterialinspired transducer for underwater backscatter, and ...
Ghaffarivardavagh, Reza, Afzal, Sayed Saad, Rodriguez, Osvy, Fadel Adib, Reza Ghaffarivardavagh, Sayed Saad Afzal, Osvy Rodriguez, Adib, Fadel   +7 more
core   +1 more source

Wireless radio frequency backscatter communication: current status、issue、development trends

物联网学报
Wireless radio frequency backscatter is characterized by shared spectrum, low power consumption, and low cost, making it a significant player in the terminal devices and repeater markets of communication and sensing.
HAN Zilong, LI Yafei, WANG Yuqi, ZHANG Yuehao, ZHENG Liming   +4 more
doaj  

Hotspot Estimation for Antenna-Less Backscatter Communication Using Excited Impedance Analysis [PDF]

Journal of Electromagnetic Engineering and Science
This paper proposes a novel method for determining the optimal mounting position of nonlinear components for antenna-less backscatter communication using ground (GND) plane patterns on printed circuit boards (PCB).
Junwoo Cha, Choyoun Park, Youngcheol Park   +2 more
doaj   +1 more source

Acoustic Backscatter Communication and Power Transfer for Batteryless Wireless Sensors. [PDF]

Sensors (Basel), 2023
Oppermann P, Renner BC.
europepmc   +1 more source