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Structure Radio Beam Construction in Azimuthal Domain [PDF]
IEEE Access, 2020 Structure radio beams with diverse radiation patterns exhibit huge potentials in many applications. In this paper, we propose a plane spiral orbital angular momentum (PS-OAM) based structure radio beam construction scheme, in which several PS-OAM waves ...
Zhixia Wang +7 more
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Concurrent Multi-Beam Digital Predistortion Using FFT Beamforming and Virtual Arrays [PDF]
SensorsA digital predistortion (DPD) scheme for concurrent multi-beam transmission in fully digital multiple-input, multiple-output (MIMO) systems, using Fast Fourier Transform (FFT) beamforming and so-called virtual-array processing, is proposed.
Björn Langborn +3 more
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Hierarchical MAB Framework for Energy-Aware Beam Training for Near-Field Communications [PDF]
SensorsFor XL-MIMO multi-user frequency division duplex systems, this paper proposes a near-field beam training scheme using a two-phase combinatorial multi-armed bandit (MAB) framework.
Yunxing Xiang +7 more
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Beam Domain MIMO-OFDM Optical Wireless Communications With PAPR Reduction
IEEE Photonics Journal, 2023 Multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM), confirmed as an efficient technique, has been applied in optical wireless communications (OWCs) to improve the transmission rate.
Chen Sun +5 more
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Manipulation of curved beams using beam-domain optimization
Optics Express, 2022 An efficient scheme for the design of aperture fields (distributed sources) that radiate arbitrary trajectory curved (accelerating) beams, with enhanced controllability of various beam features, is presented. The scheme utilizes a frame-based phase-space representation of aperture fields to overcome the main hurdles in the design for large apertures ...
Gabriel Lasry +2 more
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A Multi-Frequency Tomographic Inverse Scattering Using Beam Basis Functions
Sensors, 2022 We present an overview of a beam-based approach to ultra-wide band (UWB) tomographic inverse scattering, where beam-waves are used for local data-processing and local imaging, as an alternative to the conventional plane-wave and Green’s function ...
Ram Tuvi
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Comptes Rendus. Mathématique, 2023 We show the local null-controllability of a fluid-structure interaction system coupling a viscous incompressible fluid with a damped beam located on a part of its boundary.
Buffe, Rémi, Takahashi, Takéo
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A Time-Domain Finite-Difference Method for Bending Waves on Infinite Beams on an Elastic Foundation
Acoustics, 2022 To model the vibration and structure-borne sound excitation and propagation of a railway rail, it can be modeled as an infinite beam on an elastic foundation.
Katja Stampka, Ennes Sarradj
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Applied Mechanics, 2023 The Kirchhoff analogy between the oscillation of a pendulum (in the time domain) and the static bending of an elastic beam (in the spatial domain) is applied to the stability analysis of an inverted pendulum on a vibrating foundation (the Kapitza ...
Rahul Ramachandran, Michael Nosonovsky
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Beam Domain Secure Transmission for Massive MIMO Communications [PDF]
IEEE Transactions on Vehicular Technology, 2018 We investigate the optimality and power allocation algorithm of beam domain transmission for single-cell massive multiple-input multiple-output (MIMO) systems with a multi-antenna passive eavesdropper. Focusing on the secure massive MIMO downlink transmission with only statistical channel state information of legitimate users and the eavesdropper at ...
Wenqian Wu +3 more
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