Results 21 to 30 of about 8,908 (189)

Spectro-Temporal Combining in Bistate WiFi Backscatter Communication With Frequency Shift

open access: yesIEEE Access, 2021
In WiFi backscatter communication, the frequency shift technique allows a backscattered signal to appear not in the frequency channel of the carrier signal but in adjacent ones, thus avoiding noisy OFDM-based carrier signals and increasing the ...
Hwanwoong Hwang   +2 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

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

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

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

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

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

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

Joint optimization for secure ambient backscatter communication in NOMA-enabled IoT networks

open access: yesDigital Communications and Networks, 2023
Non-Orthogonal Multiple Access (NOMA) has emerged as a novel air interface technology for massive connectivity in Sixth-Generation (6G) era. The recent integration of NOMA in Backscatter Communication (BC) has triggered significant research interest due ...
Wali Ullah Khan   +4 more
doaj   +1 more source

Wirelessly Powered Backscatter Communication Networks: Modeling, Coverage and Capacity [PDF]

open access: yes, 2016
Future Internet-of-Things (IoT) will connect billions of small computing devices embedded in the environment and support their device-to-device (D2D) communication.
Han, Kaifeng, Huang, Kaibin
core   +3 more sources

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