Results 31 to 40 of about 22,036 (272)

Adaptive Transmission Repetition and Combining in Bistatic WiFi Backscatter Communications

open access: yesIEEE Access, 2020
Extracting data bits from bistatic-backscattered WiFi signals by threshold-based decoding is challenging due to severe fluctuation of OFDM signals. We propose adaptive transmission repetition to combat this problem.
Hwanwoong Hwang, Ji-Hoon Yun
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

Ambient Backscatter-Assisted Wireless-Powered Relaying [PDF]

open access: yesIEEE Transactions on Green Communications and Networking, 2019
Internet-of-Things (IoT) is featured with low-power communications among a massive number of ubiquitously-deployed and energy-constrained electronics, e.g., sensors and actuators. To cope with the demand, wireless-powered cooperative relaying emerges as a promising communication paradigm to extend data transmission coverage and solve energy scarcity ...
Xiao Lu   +4 more
openaire   +2 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

Defeating Eavesdroppers with Ambient Backscatter Communications

open access: yes2023 IEEE Wireless Communications and Networking Conference (WCNC), 2023
Unlike conventional anti-eavesdropping methods that always require additional energy or computing resources (e.g., in friendly jamming and cryptography-based solutions), this work proposes a novel anti-eavesdropping solution that comes with mostly no extra power nor computing resource requirement.
Van Huynh, Nguyen   +5 more
openaire   +2 more sources

Acoustic and In‐Situ Observations of Deep Seafloor Hydrothermal Discharge: An OOI Cabled Array ASHES Vent Field Case Study

open access: yesEarth and Space Science, 2021
The Cabled Observatory Vent Imaging Sonar (COVIS) was installed on the Ocean Observatories Initiative's Regional Cabled Array observatory at ASHES hydrothermal vent field on Axial Seamount in July 2018.
Guangyu Xu   +3 more
doaj   +1 more source

Ambient Backscatter Assisted Co-Existence in Aerial-IRS Wireless Networks

open access: yesIEEE Open Journal of the Communications Society, 2022
Ambient backscatter communication (AmBC) is an emerging technology that has the potential to offer spectral- and energy-efficient solutions for the next generation wireless communications networks, especially for the Internet of Things (IoT). Intelligent
Sourabh Solanki   +3 more
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

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

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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