Results 101 to 110 of about 82,705 (221)

Single-Carrier Modulation versus OFDM for Millimeter-Wave Wireless MIMO

, 2017
This paper presents results on the achievable spectral efficiency and on the energy efficiency for a wireless multiple-input-multiple-output (MIMO) link operating at millimeter wave frequencies (mmWave) in a typical 5G scenario.
Buzzi, Stefano, Colavolpe, Giulio, D'Andrea, Carmen, Foggi, Tommaso, Ugolini, Alessandro   +4 more
core   +1 more source

Symbol‐Level GRAND‐Assisted Detection for Polar‐Coded Spatial Modulation in MIMO Systems

International Journal of Communication Systems, Volume 39, Issue 7, 10 May 2026.
This research presents an integrated polar‐coded spatial modulation (PCSM) transceiver scheme for MIMO transmission over Rayleigh fading channels. The proposed architecture employs linear spatial signal processing for antenna and symbol estimation, followed by symbol‐level guessing random additive noise decoding (symbol‐level GRAND)–assisted detection ...
Abhilasha Gautam, Prabhat Thakur, Ghanshyam Singh   +2 more
wiley   +1 more source

Selective Modulation of Evidence Accumulation by Hippocampal Theta Oscillations During Mnemonic Decision‐Making

Human Brain Mapping, Volume 47, Issue 7, May 2026.
Hippocampal theta power during memory retrieval predicts evidence accumulation in a mnemonic similarity task. Trial‐level MEG signals were integrated with a linear ballistic accumulator model, revealing that theta oscillations modulate decision dynamics, linking neural variability to memory‐based discrimination performance.
Pei L. Robins, Jessica R. Gilbert, Bruce Luber, Nadia Mustafa, Eesha Bharti, Jeffrey D. Stout, Frederick W. Carver, Zhi‐De Deng   +7 more
wiley   +1 more source

Directed Communication in Theta and Alpha Networks Supports Content Handling in Working Memory

Human Brain Mapping, Volume 47, Issue 7, May 2026.
We examined mental rotation and delineated the role of directed communication in theta and alpha band activity in cortical networks. ABSTRACT Executive functions enable flexible control of behavior by dynamically coordinating perception, memory, and action.
Julia Elmers, Moritz Mückschel, Christian Beste   +2 more
wiley   +1 more source

Liver Stiffness Characterization of OGTLKO Mouse Model of Progressive Liver Fibrosis

Journal of Ultrasound in Medicine, Volume 45, Issue 5, Page 1069-1082, May 2026.
Objectives O‐GlcNAcylation plays a key regulatory role in hepatic physiology, and its disruption leads to fibrosis in liver‐specific OGT knockout mice (OGTLKO), making this model valuable for studying advanced metabolic dysfunction‐associated steatohepatitis (MASH).
Gilles Renault, Lenin Chinchilla, Lourdes Massengo, Pierre Monbernard, Fadila Benhamed, Marion Regnier, Raphael Denis, Catherine Postic, Anthony Novell, Jean‐Luc Gennisson   +9 more
wiley   +1 more source

Reinforcement Learning-Based Joint Beamwidth and Beam Alignment Interval Optimization in V2I Communications

Sensors
The directional antenna combined with beamforming is one of the attractive solutions to accommodate high data rate applications in 5G vehicle communications.
Jihun Lee, Hun Kim, Jaewoo So
doaj   +1 more source

Location‐Assisted Graph‐Based User Scheduling in Multi‐User MIMO LEO NTN Systems

International Journal of Satellite Communications and Networking, Volume 44, Issue 3, Page 275-287, May/June 2026.
ABSTRACT This paper addresses user clustering and scheduling for multi‐user MIMO low Earth orbit nonterrestrial network systems in full frequency reuse. Since the number of on‐ground user terminals is usually much higher than the number of on‐board LEO satellite antennas, user scheduling becomes a fundamental task.
Bilal Ahmad, Daniel Gaetano Riviello, Bruno De Filippo, Alessandro Guidotti, Alessandro Vanelli‐Coralli   +4 more
wiley   +1 more source

Numerically Optimized Fourier Transform-Based Beamforming Accelerated by Neural Networks

Applied Sciences
Conventional beamforming methods for reconfigurable reflector antennas assume full control over the amplitude and phase of the reflected field. Here, we develop a novel beamforming methodology for reflecting Programmable Metasurfaces (PMS) with ...
Keivan Kaboutari, Abdelghafour Abraray, Stanislav Maslovski   +2 more
doaj   +1 more source

The Detection of Transient Subduction Zone Interface Properties Using Teleseismic Data

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The physical properties of subduction zone interfaces govern the transition between stable aseismic slip, episodic slow slip events (SSEs), and large earthquakes. Ultraslow velocity layers (USVLs) along the megathrust are commonly interpreted as indicators of elevated pore‐fluid pressures that promote slow slip, but their temporal variability ...
F. Rappisi, T. J. Craig, S. Rost
wiley   +1 more source

Analysis of Simulated and Measured Indoor Channels for mm-Wave Beamforming Applications

International Journal of Antennas and Propagation, 2018
Ray tracing- (RT-) assisted beamforming, where beams are directly steered to dominant paths tracked by ray tracing simulations, is a promising beamforming strategy, since it avoids the time-consuming exhaustive beam searching adopted in conventional beam
Anders Karstensen, Wei Fan, Fengchun Zhang, Jesper Ø. Nielsen, Gert F. Pedersen   +4 more
doaj   +1 more source