Results 21 to 30 of about 22,742 (201)

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

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

open access: yes, 2017
This paper 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. Assuming the RF
Clerckx, Bruno   +2 more
core   +2 more sources

Concurrent Backscatter Streaming from Batteryless and Wireless Sensor Tags with Multiple Subcarrier Multiple Access [PDF]

open access: yes, 2017
This paper proposes a novel multiple access method that enables concurrent sensor data streaming from multiple batteryless, wireless sensor tags. The access method is a pseudo-FDMA scheme based on the subcarrier backscatter communication principle, which
Haruhisa ICHIKAWA   +4 more
core   +2 more sources

Channel Estimation via Model and Learning for Monostatic Multiantenna Backscatter Communication

open access: yesIEEE Access, 2021
Backscatter communication has received considerable attention for future Internet-of-things (IoT) exploiting battery-free devices. To support massive connectivity of such energy-constrained IoT devices, a monostatic multiantenna backscatter communication
Moldir Yerzhanova, Yun Hee Kim
doaj   +1 more source

A Tractable Product Channel Model for Line-of-Sight Scenarios [PDF]

open access: yes, 2019
We present a general and tractable fading model for line-of-sight (LOS) scenarios, which is based on the product of two independent and non-identically distributed $\kappa$-$\mu$ shadowed random variables.
Fernandez-Plazaola, Unai   +5 more
core   +2 more sources

Ambient backscatter communication-based smart 5G IoT network

open access: yesEURASIP Journal on Wireless Communications and Networking, 2021
In this paper, we propose an ambient backscatter communication-based smart 5G IoT network. The network consists of two parts, namely a real-time data transmission system based on ambient backscatter communication and a real-time big data analysis system ...
Qiang Liu   +3 more
doaj   +1 more source

Stackelberg Game for Distributed Time Scheduling in RF-Powered Backscatter Cognitive Radio Networks [PDF]

open access: yes, 2018
In this paper, we study the transmission strategy adaptation problem in an RF-powered cognitive radio network, in which hybrid secondary users are able to switch between the harvest-then-transmit mode and the ambient backscatter mode for their ...
Hoang, Dinh Thai   +4 more
core   +1 more source

Theoretical Limits of Backscatter Communications

open access: yes, 2023
v2: Subsection IV G "Influence of the Distance in a Bi-static Configuration" replaced by a new subsection about an Ambient Backscattering Configuration (Subsection IV G "Influence of the Distance in an Ambient Backscattering Configuration")
Korn, Clemens   +2 more
openaire   +2 more sources

Ergodic Rate Analysis of Cooperative Ambient Backscatter Communication [PDF]

open access: yes, 2019
Ambient backscatter communication has shown great potential in the development of future wireless networks. It enables a backscatter transmitter (BTx) to send information directly to an adjacent receiver by modulating over ambient radio frequency (RF ...
Alouini, Mohamed-Slim   +5 more
core   +2 more sources

ISI Cancellation Using Blind Equalizer Based on DBC Model for MIMO-RFID Reader Reception [PDF]

open access: yes, 2015
Under the dyadic backscatter channel (DBC) model, a conventional zero forcing (ZF) and minimum mean square error (MMSE) method for MIMO-RFID reader reception are not able to be rapidly cancelled inter-symbol interference (ISI) because of the error of ...
Duangsuwan, S., Promwong, S.
core   +2 more sources

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