Results 31 to 40 of about 523,825 (238)

Multi-Dimensional Sparse-Coded Ambient Backscatter Communication for Massive IoT Networks

Energies, 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

Ambient Backscatter Communication Networks

, 2023
Understand fundamental principles of ambient backscatter technology and their diverse potential applications with this authoritative ...
Niyato, D, Hoang, DT, Kim, DI, Huynh, NV, Gong, S   +4 more
core  

Long range ambient backscatter apparatus

, 2022
In accordance with a first aspect of the present invention, there is provided an ambient backscatter circuit arranged to generate a varying circuit reflection coefficient. The ambient backscatter circuit comprises: a modulation member; a switching device
Goussetis, George; id_orcid, Daskalakis, Spyridon; id_orcid   +1 more
core   +1 more source

Guest Editorial: Special Issue on Large-Scale Wireless-Powered Networks With Backscatter Communications

IEEE Open Journal of the Communications Society, 2020
The Proliferation of connected and embedded devices has played a critical role in the development of next generation Internet of Things (IoT), and consequently, the diffusion of low power networks. The sustainability of such networks entails energy aware
Sami Muhaidat, Paschalis C. Sofotasios, Kaibin Huang, Muhammad Ali Imran, Zhiguo Ding, Naofal Al-Dhahir   +5 more
doaj   +1 more source

Cloud-Aided Cognitive Ambient Backscatter Wireless Sensor Networks

IEEE Access, 2019
Cognitive ambient backscatter is a wireless communication paradigm that allows a secondary backscatter device to superimpose its information-bearing data on a primary signal, without requiring any type of power-consuming active components or other signal
Donatella Darsena, Giacinto Gelli, Francesco Verde   +2 more
doaj   +1 more source

Multi-Antenna Ambient Backscatter Communications: Performance Optimization and Analysis

, 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

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Polarization-Based Reconfigurable Tags for Robust Ambient Backscatter Communications

IEEE Open Journal of the Communications Society, 2020
Ambient backscatter communication is an emerging and promising low-energy technology for the Internet of Things. In such a system, a tag sends a binary message to a reader by backscattering a radio frequency signal generated by an ambient source. The tag
R. Fara, D.-T. Phan-Huy, A. Ourir, Y. Kokar, J.-C. Prevotet, M. Helard, M. Di Renzo, J. De Rosny   +7 more
doaj   +1 more source

Rate Maximization of UAV-Assisted Ambient Backscatter Communications

, 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, Jiang, X, Nallanathan, A, Li, Y, Wu, X, Zhao, N, Li, B   +6 more
core   +1 more source

Impact of the Process Atmosphere During Hot Isostatic Pressing on the Near‐Surface Composition of an Additively Manufactured Austenitic High‐Interstitial Steel

Advanced Engineering Materials, EarlyView.
A high interstital austenitic steel is additively manufactured and postdensified by HIP to eliminate gas porosity. Thereby, the loss of N and Mn in Ar HIP atmosphere is investigated. Further, HIP using N2 atmosphere is investigated which led to excessive nitride formation.
F. Großwendt, J. Hahn, J. Kimm, S. Weber, J. Lentz   +4 more
wiley   +1 more source