Results 111 to 120 of about 103,779 (270)
Robust Capon Beamforming via Shaping Beam Pattern [PDF]
arXiv, 2013 High sidelobe level and direction of arrival (DOA) estimation sensitivity are two major disadvantages of the Capon beamforming. To deal with these problems, this paper gives an overview of a series of robust Capon beamforming methods via shaping beam pattern, including sparse Capon beamforming, weighted sparse Capon beamforming, mixed norm based Capon ...
arxiv
Generic Multiuser Coordinated Beamforming for Underlay Spectrum Sharing
, 2015 The beamforming techniques have been recently studied as possible enablers for underlay spectrum sharing. The existing beamforming techniques have several common limitations: they are usually system model specific, cannot operate with arbitrary number of
Atanasovski, Vladimir +4 more
core +1 more source
Medical Physics, EarlyView.Abstract Background Microwave breast hyperthermia is a noninvasive treatment method for breast cancer that utilizes microwave energy (ME) sources to raise tissue temperatures above 42∘C$^{\circ }{\rm C}$, inducing tumor cell necrosis. The efficiency of ME deposition depends on the electric field magnitude and tissue conductivity, with antenna phase and
Burak Acar, Tuba Yilmaz, Ali Yapar
wiley +1 more source
Implementation of the Digital QS-SVM-based Beamformer on an FPGA Platform [PDF]
arXiv, 2022 To address practical challenges in establishing and maintaining robust wireless connectivity such as multi-path effects, low latency, size reduction, and high data rate, the digital beamformer is performed by the hybrid antenna array at the frequency of operation of 10 GHz.
arxiv
Optimization of Massive Full-Dimensional MIMO for Positioning and Communication
, 2017 Massive Full-Dimensional multiple-input multiple-output (FD-MIMO) base stations (BSs) have the potential to bring multiplexing and coverage gains by means of three-dimensional (3D) beamforming.
Jeong, Seongah +2 more
core +1 more source
Robust beamforming design for UAV communications based on integrated sensing and communication
EURASIP Journal on Wireless Communications and Networking, 2023 Integrated sensing and communication (ISAC) has been a promising technique in various wireless communication applications. In this paper, we investigate a beamforming design method based on ISAC waveforms in unmanned aerial vehicle (UAV) communications ...
Haolin Zhang +4 more
doaj +1 more source
Beamforming in MISO Systems: Empirical Results and EVM-based Analysis
, 2009 We present an analytical, simulation, and experimental-based study of beamforming Multiple Input Single Output (MISO) systems. We analyze the performance of beamforming MISO systems taking into account implementation complexity and effects of imperfect ...
Dick, Chris +3 more
core +1 more source
Reduction of interference using Orthogonal Vertical Beamforming in an indoor communication [PDF]
MATEC Web of Conferences, 2019 The interference between users is one of the factors that limit the achievable user throughput in the current indoor communication. In this paper, an evaluation of transmit beamforming contribution is analyzed in the context of an indoor environment. The
Wongchampa Paleerat
doaj +1 more source
Beamforming Techniques for Large-N Aperture Arrays
, 2010 Beamforming is central to the processing function of all phased arrays and becomes particularly challenging with a large number of antenna element (e.g. >100,000).
Adami, K Zarb +4 more
core +1 more source
A compressive beamforming method [PDF]
2008 IEEE International Conference on Acoustics, Speech and Signal Processing, 2008 Compressive sensing (CS) is an emerging area which uses a relatively small number of non-traditional samples in the form of randomized projections to reconstruct sparse or compressible signals. This paper considers the direction-of-arrival (DOA) estimation problem with an array of sensors using CS. We show that by using random projections of the sensor
Gurbuz, Ali Cafer +2 more
openaire +3 more sources