Results 21 to 30 of about 10,056 (178)
A novel joint transmit beamforming and receive time switching strategy for MISO SWIPT system
EURASIP Journal on Wireless Communications and Networking, 2018 In multi-antenna simultaneous wireless information and power transfer (SWIPT) system, beamforming strategy has been widely analyzed due to the increasing signal strength.
Lin Ma +4 more
doaj +1 more source
Near-Field Beamforming Algorithms for UAVs
Sensors, 2023 This study presents three distributed beamforming algorithms to address the challenges of positioning and signal phase errors in unmanned aerial vehicle (UAV) arrays that hinder effective beamforming.
Yinan Zhang +5 more
doaj +1 more source
Open-Loop Beamforming Technique for MIMO System and Its Practical Realization
International Journal of Antennas and Propagation, 2011 The concept of close-loop beamforming for MIMO system was well known proposed the singular value decomposition on channel matrix. This technique can improve the capacity performance, but the cost of feedback channel and the complexity processing discard
Peerapong Uthansakul +2 more
doaj +1 more source
New perspective on single-radiator multiple-port antennas for adaptive beamforming applications. [PDF]
PLoS ONE, 2017 One of the most challenging problems in recent antenna engineering fields is to achieve highly reliable beamforming capabilities in an extremely restricted space of small handheld devices.
Gangil Byun, Hosung Choo
doaj +1 more source
An applicable 5.8 GHz wireless power transmission system with rough beamforming to Project Loon
ICT Express, 2016 In recent, Google proposed the Project Loon being developed with the mission of providing internet access to rural and remote areas using high-altitude balloons.
Chang-Jun Ahn
doaj +1 more source
Impact of Beamforming on the Path Connectivity in Cognitive Radio Ad Hoc Networks
Sensors, 2017 This paper investigates the impact of using directional antennas and beamforming schemes on the connectivity of cognitive radio ad hoc networks (CRAHNs).
Le The Dung +4 more
doaj +1 more source
Real‐Time 3D Ultrasound Imaging with an Ultra‐Sparse, Low Power Architecture
Advanced Healthcare Materials, EarlyView.This article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Colin Marcus +9 more
wiley +1 more source
APL Machine LearningBeamforming, an integral component of modern mobile networks, enables spatial selectivity and improves network quality. However, many beamforming techniques are iterative, introducing unwanted latency to the system.
Jaspreet Kaur +7 more
doaj +1 more source
IEEE Access, 2022 The goal of this paper is to evaluate the performance of an adaptive beamforming approach in fifth-generation millimeter-wave multicellular networks, where massive multiple-input multiple-output configurations are employed in all active base stations of ...
Spyros Lavdas +5 more
doaj +1 more source
Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection
Advanced Materials, EarlyView.Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel +7 more
wiley +1 more source