Results 21 to 30 of about 22,036 (272)

Secret Key Generation Between Ambient Backscatter Devices

open access: yesIEEE Access, 2023
We analyze secret key generation between ambient backscatter devices where the channel between an ambient transmitter and the backscatter devices is used as a source of randomness.
Jari Lietzen, Olav Tirkkonen
doaj   +1 more source

Ambient Backscatter Communication Design over DCSK Signals

open access: yesInternational Journal of Bifurcation and Chaos, 2021
In this paper, a novel ambient backscatter communication system is proposed, in which Differential Chaos Shift Keying (DCSK) modulation signals are adopted as ambient RF source. In order to cancel out the strong direct-link interference as well as reduce the noise impact, a joint design of modulation waveform and signal detector is proposed, and ...
Ronghua Luo, Hua Yang, Hua Shi, Jun Lei
openaire   +2 more sources

Coding and Detection Schemes for Ambient Backscatter Communication Systems

open access: yesIEEE Access, 2017
Ambient backscatter technology has attracted much attention recently, because it enables battery-free devices, such as tags or sensors, to communicate through wireless energy harvesting and radio backscattering. Existing studies about ambient backscatter
Yang Liu   +3 more
doaj   +1 more source

An Approximate BER Analysis for Ambient Backscatter Communication Systems With Tag Selection

open access: yesIEEE Access, 2017
Ambient backscatter is a new technology that uses ambient signals to enable communication between battery-free tags (or sensors) and readers. Previous studies on ambient backscatter focused on scenarios with only one tag.
Xiaoyu Zhou   +3 more
doaj   +1 more source

Design of Intelligent Reflecting Surface (IRS)-Boosted Ambient Backscatter Systems

open access: yesIEEE Access, 2022
Passive technologies like ambient backscatter communication (AmBC) and intelligent reflecting surface (IRS) hold enormous potential for ubiquitous connectivity of Internet of Things (IoT) devices in future wireless networks.
Sahar Idrees   +3 more
doaj   +1 more source

Channel Estimation for Ambient Backscatter Communication Systems with Massive-Antenna Reader [PDF]

open access: yes, 2019
Ambient backscatter, an emerging green communication technology, has aroused great interest from both academia and industry. One open problem for ambient backscatter communication (AmBC) systems is channel estimation for a massive-antenna reader. In this
Atapattu, Saman   +4 more
core   +2 more sources

Demo Abstract: Real-Time Ambient Backscatter Demonstration [PDF]

open access: yesIEEE INFOCOM 2019 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), 2019
To lower power consumption and spectral congestion, it has been proposed to transmit digital informations by modulating the ambient electromagnetic waves emitted by different RF sources such as TV broadcast, Wifi. We have recently developed prototypes of backscatter tags and readers operating in real-time recycling DVB-T and 4G RF fields.
Rachedi, K.   +8 more
openaire   +2 more sources

High-Frequency Volume and Boundary Acoustic Backscatter Fluctuations in Shallow Water [PDF]

open access: yes, 2003
Volume and boundary acoustic backscatter envelope fluctuations are characterized from data collected by the Toroidal Volume Search Sonar (TVSS), a 68 kHz cylindrical array capable of 360° multibeam imaging in the vertical plane perpendicular to its axis.
de Moustier, Christian   +1 more
core   +2 more sources

Reconfigurable Intelligent Surface-Assisted Ambient Backscatter Communications – Experimental Assessment [PDF]

open access: yes2021 IEEE International Conference on Communications Workshops (ICC Workshops), 2021
Accepted to IEEE International Conference on Communications Workshop on Reconfigurable Intelligent Surfaces for Future Wireless Communications ...
Fara, R.   +5 more
openaire   +2 more sources

Ambient Backscatter Communication Systems: Capacity and Outage Performance Analysis

open access: yesIEEE Access, 2018
Ambient backscatter is an emerging green communication technology that exploits the environmental radio frequency (RF) signals to enable passive devices to communicate with each other.
Wenjing Zhao   +4 more
doaj   +1 more source

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