Results 21 to 30 of about 7,483 (129)

Time- and Power-Splitting Strategies for Ambient Backscatter System

open access: yesIEEE Access, 2019
An ambient backscatter system could utilize the exiting ambient RF signals as both energy source and information carrier to enable the communications among battery-free devices and is deemed as a promising communication primitive for the Internet of ...
Zhe Ma   +6 more
doaj   +1 more source

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

DDPG-Based Throughput Optimization with AoI Constraint in Ambient Backscatter-Assisted Overlay CRN

open access: yesSensors, 2022
The combination of ambient backscatter (AB) communications (ABCs) and RF-powered cognitive radio networks (CRNs) deals with challenges of both energy supply and spectrum shortage, and improves the network performances.
Xueli Jia   +3 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

Symbol Detection of Ambient Backscatter Systems with Manchester Coding

open access: yes, 2018
Ambient backscatter communication is a newly emerged paradigm, which utilizes the ambient radio frequency (RF) signal as the carrier to reduce the system battery requirement, and is regarded as a promising solution for enabling large scale deployment of ...
Lin, Hai   +3 more
core   +1 more source

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

Novel Sparse-Coded Ambient Backscatter Communication for Massive IoT Connectivity

open access: yes, 2018
Low-power ambient backscatter communication (AmBC) relying on radio-frequency (RF) energy harvesting is an energy-efficient solution for batteryless Internet of things (IoT).
Kim, Dong In, Kim, Tae Yeong
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

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

Freeform Fabrication of Layered Halide Perovskite Nanowire Heterojunctions

open access: yesAdvanced Materials, EarlyView.
‘All‐at‐once’ freeform fabrication of layered perovskite nanowire heterojunctions is realized by 3D printing employing meniscus‐guided crystallization. The integration of nanoscale additive manufacturing with layered halide perovskites will provide a versatile platform to freely design and realize highly stable perovskite‐based optoelectronic ...
Sixi Cao   +8 more
wiley   +1 more source

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