Results 21 to 30 of about 1,318,827 (204)

Radar-Enabled Ambient Backscatter Communications

open access: yesIEEE Transactions on Wireless Communications, 2023
In this work, we exploit the radar clutter (i.e., the ensemble of echoes generated by the terrain and/or the surrounding objects in response to the signal emitted by a radar transmitter) as a carrier signal to enable an ambient backscatter communication from a source (tag) to a destination (reader).
Luca Venturino   +4 more
openaire   +6 more sources

Ambient OFDM Pilot-Aided Backscatter Communications: Concept and Design

open access: yesIEEE Access, 2021
This paper investigates a backscatter communications system that exploits ambient pilot symbols used in existing standards based on orthogonal frequency-division multiplexing (OFDM), such as IEEE802.11, in order to realize ultra-low power communications ...
Takanori Hara   +2 more
doaj   +1 more source

Rate Maximization of UAV-Assisted Ambient Backscatter Communications

open access: yes, 2023
Unmanned aerial vehicle (UAV) has been extensively deployed to improve wireless coverage due to its high mobility, while ambient backscatter communication has the advantage in improving the energy efficiency.
Li, P   +6 more
core   +1 more source

Opportunistic Backscatter Communication Protocol Underlying Energy Harvesting IoT Networks

open access: yesIEEE Access, 2023
Traditional WiFi devices, wireless energy harvesting devices, sensor-driven smart gadgets, and backscatter communication tags can all be part of a heterogeneous wireless network.
Arshad Iqbal, Tae-Jin Lee
doaj   +1 more source

Spectrally Efficient Backscatter Systems: A Hardware-Oriented Survey

open access: yesIEEE Access, 2023
The growing interest in backscatter communications as a low-powered solution in various fields necessitates pushing the envelope of current backscatter systems in multiple frontiers, among which is spectral efficiency. The increase in spectral efficiency
Mohammad Alhassoun
doaj   +1 more source

Backscatter Communications over Ambient OFDM Signals using Null Subcarriers [PDF]

open access: yes, 2018
Käsikirjoitus avataan, kun artikkeli julkaistu.In recent years, ambient backscatter communications have gained a lot of interest as a promising enabling technology for Internet-of-Things and green communications.
Li, Geoffrey   +11 more
core   +1 more source

Backscatter-NOMA Empowered Wireless Powered Cooperative Communications for Green IoT

open access: yes, 2022
This work explores the combination of the three potent technologies, namely, backscatter communications, RF energy harvesting and NOMA and studies a communication scenario where different users co-exist.
Shivam Gujral (12813377)   +1 more
core   +1 more source

Wirelessly Powered Backscatter Communications: Waveform Design and SNR-Energy Tradeoff [PDF]

open access: yes, 2017
This letter shows that wirelessly powered backscatter communications is subject to a fundamental tradeoff between the harvested energy at the tag and the reliability of the backscatter communication, measured in terms of SNR at the reader.
Kaibin Huang   +6 more
core   +1 more source

Resource Allocation Optimization for Secure Multi-device Wirelessly Powered Backscatter Communication with Artificial Noise

open access: yes, 2022
Publisher Copyright: AuthorWirelessly powered backscatter communications (WPBC) is an emerging technology for providing continuous energy and ultra-low power communications.
Wang, Ning   +7 more
core   +1 more source

Multi-Antenna Ambient Backscatter Communications: Performance Optimization and Analysis

open access: yes, 2023
Amid the evolution of Internet-of-things (IoT), connecting the ever-increased number of devices requires sustainable solutions. Ambient backscatter communications (AmBC) emerges as a promising enabler because of its ultra-low power consumption and ...
Wang, Xiyu
core   +1 more source

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