Results 151 to 160 of about 167,226 (306)

Adaptive Channel Estimation for Semi-Passive IRS with Optimized Sensor Deployment. [PDF]

Sensors (Basel)
Han Z, Wang H, Wang Y, Fan Z.
europepmc   +1 more source

Channel Estimation for RIS-Assisted MIMO Systems in Millimeter Wave Communications. [PDF]

Sensors (Basel), 2023
Liu Y, Deng H, Peng C.
europepmc   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Joint channel estimation and feedback with masked token transformers in massive MIMO systems. [PDF]

Sci Rep
Yin M, Zhao M, Liu L, Liu L.
europepmc   +1 more source

A Structured Sparse Bayesian Channel Estimation Approach for Orthogonal Time-Frequency Space Modulation. [PDF]

Entropy (Basel), 2023
Zhang M, Xia X, Xu K, Yang X, Xie W, Li Y, Liu Y.   +6 more
europepmc   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Channel Estimation in UAV-Assisted OFDM Systems by Leveraging LoS and Echo Sensing with Carrier Aggregation. [PDF]

Sensors (Basel)
Chen Z, Wu W, Wang R, Liang M, Zhang W, Yao S, Hu W, Qing C.   +7 more
europepmc   +1 more source

A Novel Joint Channel Estimation and Symbol Detection Receiver for Orthogonal Time Frequency Space in Vehicular Networks. [PDF]

Entropy (Basel), 2023
Zhang X, Wen H, Yan Z, Yuan W, Wu J, Li Z.   +5 more
europepmc   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Channel Estimation for Intelligent Reflecting Surface Empowered Coal Mine Wireless Communication Systems. [PDF]

Entropy (Basel)
Liu Y, Guo K, Li X, Wang B, Xu Y.
europepmc   +1 more source