Results 91 to 100 of about 2,907 (204)

Aerial and Space‐Borne Seismology on Venus: Viability and Design Implications for Future Missions

open access: yesEarth and Space Science, Volume 13, Issue 6, June 2026.
Abstract Venus' evolution remains a mystery because of the lack of in situ geophysical data to constrain its interior structure. Recently‐selected planetary missions VERITAS (NASA), DAVINCI+ (NASA), and EnVision (ESA) will investigate the planet's interior, surface, and atmospheric chemistry.
Quentin Brissaud   +9 more
wiley   +1 more source

Speech Neurophysiology in Realistic Contexts: Big Hype or Big Leap?

open access: yesEuropean Journal of Neuroscience, Volume 63, Issue 12, June 2026.
Speech neurophysiology is moving from controlled listening tasks to dynamic, socially rich interactions, challenging traditional methods. This shift promises deeper insights into how the brain processes and represents speech in real‐world contexts, while introducing new analytical complexities.
Giovanni M. Di Liberto, Emily Y. J. Ip
wiley   +1 more source

Outage Constrained Robust Hybrid Coordinated Beamforming for Massive MIMO Enabled Heterogeneous Cellular Networks

open access: yesIEEE Access, 2017
Heterogeneous network (HetNet), employing massive multiple-input multiple-output (MIMO), has been recognized as a promising technique to enhance network capacity, and to improve energy efficiency for the fifth generation of wireless communications ...
Guixian Xu   +4 more
doaj   +1 more source

A Three-channel True-time delay Beamforming Analog Front-end

open access: yes, 2014
Beamforming is a signal processing technique used in sensor arrays. After specific time delay, signal will be constructive interference or destructive interference.
Hsueh, Jen-Chieh, 薛人傑
core  

A Low-Cost Modular Transmit Front-End with Analog Beamforming Capability

open access: yes, 2017
In this paper, we present a radio frequency (RF) transmitter front-end which can be used in analog beamforming applications. The proposed system is modular and can be used in different frequency bands.
Marcos V. T. Heckler   +5 more
core   +1 more source

Joint Analog and Passive Beamforming Design for IRS-Aided Secure Cognitive NOMA Systems [PDF]

open access: yes, 2023
Due to the ability of channel reconfiguration, intelligent reflecting surface (IRS) can be used to boost the secrecy rate of cognitive non-orthogonal multiple access (NOMA) systems. However, the cost and hardware complexity of full-digital beamforming in
Wang, X   +5 more
core  

Outdoor mm-wave 5G/6G transmission with adaptive analog beamforming and IFoF fronthaul. [PDF]

open access: yesSci Rep, 2023
Pérez Santacruz J   +7 more
europepmc   +1 more source

Beyond Codebook-Based Analog Beamforming at mmWave: Compressed Sensing and Machine Learning Methods

open access: yes, 2022
Analog beamforming is the predominant approach for millimeter wave (mmWave) communication given its favorable characteristics for limited-resource devices.
Luo, Tao   +8 more
core  

Spectral Efficiency of mmWave Massive MIMO Systems with Hybrid Beamforming

open access: yesWasit Journal of Engineering Sciences
Millimeter wave communications (mmWave) has been considered a key enabling technique for 5G systems since it offers orders of magnitude more spectrum than current frequency bands.
Sajjad Kadhim   +5 more
doaj   +1 more source

Multiuser downlink hybrid analog-digital beamforming with individual SINR constraints

open access: yes, 2011
This paper deals with the problem of multiuser transmit hybrid analog-digital beamforming. Precisely, we tackle the problem of transmit power minimization under minimum signal-to-noise-plus-interference ratio (SINR) constraints.
Blanco, Luis   +2 more
core   +1 more source

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