Results 21 to 30 of about 66 (59)

Novel Sparse-Coded Ambient Backscatter Communication for Massive IoT Connectivity

open access: yesEnergies, 2018
Low-power ambient backscatter communication (AmBC) relying on radio-frequency (RF) energy harvesting is an energy-efficient solution for batteryless Internet of Things (IoT).
Tae Yeong Kim, Dong In Kim
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

Secrecy Wireless‐Powered Sensor Networks for Internet of Things

open access: yesWireless Communications and Mobile Computing, Volume 2020, Issue 1, 2020., 2020
This paper investigates a secure wireless‐powered sensor network (WPSN) with the aid of a cooperative jammer (CJ). A power station (PS) wirelessly charges for a user equipment (UE) and the CJ to securely transmit information to an access point (AP) in the presence of multiple eavesdroppers.
Junxia Li   +7 more
wiley   +1 more source

Sum rate maximization in active RIS-assisted ambient backscatter communication system

open access: yesResults in Engineering
This paper focuses on an active reconfigurable intelligent surface (RIS)-assisted ambient backscatter communication (AmBC) system. The explosive growth of the Internet of Things (IoT) has led to increasing demands for efficient communication, yet ...
Hongxia Zheng   +7 more
doaj   +1 more source

Backscatter-NOMA: A Symbiotic System of Cellular and Internet-of-Things Networks

open access: yesIEEE Access, 2019
Non-orthogonal multiple access (NOMA) is envisioned as a key technology to enhance the spectrum efficiency for 5G cellular networks. Meanwhile, ambient backscatter communication is a promising solution to the Internet of Things (IoT), due to its high ...
Qianqian Zhang   +3 more
doaj   +1 more source

Outage Performance of RIS-Assisted AmBC-NOMA Cooperative V2I Communications

open access: yesIEEE Open Journal of the Communications Society
Vehicle-to-infrastructure (V2I) communication facilitates seamless interaction between vehicles and the surrounding infrastructure. Recently, there has been a notable surge in research interest in ambient backscatter communications (AmBC), primarily due ...
Ahmed Samir   +4 more
doaj   +1 more source

Performance Evaluation of Ambient Backscattering Communication (AmBC) in Outdoor Environments

open access: yes, 2023
The demand for wireless communications surged in the past decade due to the massive number of devices requiring a connection to the internet. Although traditional wired communications provide a much more reliable connection, utilizing wires in specific deployment scenarios is improbable.
openaire   +1 more source

Deep Conditional Generative Adversarial Networks for Efficient Channel Estimation in AmBC Systems

open access: yesIEEE Transactions on Machine Learning in Communications and Networking
In ambient backscatter communication (AmBC), battery-free devices (tags) harvest energy from ambient radio frequency (RF) signals and communicate with readers.
Shayan Zargari   +3 more
doaj   +1 more source

Performance Analysis of CR-Enabled AmBC NOMA Under IQI and Sensitivity Constraints

open access: yesIEEE Access
Considering tag sensitivity and in-phase and quadrature-phase imbalance (IQI), this paper investigates the reliability and security of a cognitive radio (CR)-aided ambient backscatter communication (AmBC) non-orthogonal multiple access (NOMA) system ...
Wenjing Zhao   +6 more
doaj   +1 more source

Secrecy Analysis and Prediction of Ambient Backscatter NOMA Systems With I/Q Imbalance

open access: yesIEEE Open Journal of the Communications Society
In this paper, the reliability and security of ambient backscatter (AmBC) non-orthogonal multiple access (NOMA) systems on Nakagami-m distribution are studied.
Jiangfeng Sun   +3 more
doaj   +1 more source

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