Results 31 to 40 of about 8,908 (189)

Performance analysis of wireless-powered cognitive radio networks with ambient backscatter

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
Ambient backscatter is a promising wireless communication technique where low-power users communicate with each other without any dedicated power source.
Daniyal Munir   +4 more
doaj   +1 more source

Ambient Backscatter Assisted Wireless Powered Communications

open access: yesIEEE Wireless Communications, 2018
Ambient backscatter communication technology has been introduced recently, and is quickly becoming a promising choice for self-sustainable communication systems, as an external power supply or a dedicated carrier emitter is not required. By leveraging existing RF signal resources, ambient backscatter technology can support sustainable and independent ...
Lu, Xiao   +5 more
openaire   +2 more sources

The New Era of Long-Range “Zero-Interception” Ambient Backscattering Systems: 130 m with 130 nA Front-End Consumption

open access: yesSensors, 2022
Internet of Things applications based on backscatter radio principles have appeared to address the limitations of high cost and high power consumption. While radio-frequency identification (RFID) sensor nodes are among the most commonly utilized state-of-
Spyridon Nektarios Daskalakis   +4 more
doaj   +1 more source

Signal Detection Scheme in Ambient Backscatter System With Multiple Antennas

open access: yesIEEE Access, 2017
The ambient backscatter technique is a communication technology that uses ambient radio frequency signals to enable battery-free devices to communicate with other device.
Chang-Hee Kang   +3 more
doaj   +1 more source

Hybrid Ambient Backscatter Communication Systems With Harvest-Then-Transmit Protocols

open access: yesIEEE Access, 2018
In this paper, we investigate and analyze a hybrid ambient backscatter (AmBack) scheme with harvest-then-transmit protocols. In this scheme, the whole transmission is divided into three phases (time slots): energy harvesting (EH), AmBack, and data ...
Dong Li, Wei Peng, Ying-Chang Liang
doaj   +1 more source

Intelligent Reconfigurable Surface enhanced Ambient Backscatter Communication enabled Wireless Body Area Network

open access: yesICT Express, 2023
This paper considers an Intelligent Reconfigurable Surface (IRS)-enhanced Ambient Backscatter Communication (AmBC)-enabled Wireless Body Area Network (WBAN) system.
Xu Zhao, Weilin Zang, Ye Li
doaj   +1 more source

Airborne observations of the Eyjafjalla volcano ash cloud over Europe during air space closure in April and May 2010 [PDF]

open access: yes, 2011
© Author(s) 2011. This work is distributed under the Creative Commons Attribution 3.0 LicenseAirborne lidar and in-situ measurements of aerosols and trace gases were performed in volcanic ash plumes over Europe between Southern Germany and Iceland with ...
Ansmann, A.   +37 more
core   +5 more sources

Simultaneous harvest-and-transmit ambient backscatter communications under Rayleigh fading

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
Ambient backscatter communications is an emerging paradigm and a key enabler for pervasive connectivity of low-powered wireless devices. It is primarily beneficial in the Internet of things (IoT) and the situations where computing and connectivity ...
Furqan Jameel   +3 more
doaj   +1 more source

Noncoherent Backscatter Communications Over Ambient OFDM Signals

open access: yesIEEE Transactions on Communications, 2019
In recent years, ambient backscatter communications have gained a lot of interests as a promising enabling technology for the Internet-of-Things and green communications. In ambient backscatter communication systems, ultra-low power devices are able to transmit information by backscattering ambient radio-frequency signals generated by legacy ...
ElMossallamy, Mohamed A.   +6 more
openaire   +2 more sources

Multi-Dimensional Sparse-Coded Ambient Backscatter Communication for Massive IoT Networks

open access: yesEnergies, 2018
In this paper, we propose a multi-dimensional sparse-coded ambient backscatter communication (MSC-AmBC) system for long-range and high-rate massive Internet of things (IoT) networks.
Tae Yeong Kim, Dong In Kim
doaj   +1 more source

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