Results 51 to 60 of about 57,732 (152)
The performance of approximating ordinary differential equations by neural nets [PDF]
, 2010 The dynamics of many systems are described by ordinary differential equations (ODE). Solving ODEs with standard methods (i.e. numerical integration) needs a high amount of computing time but only a small amount of storage memory. For some applications, e.
Brause, Rüdiger W., Fojdl, Josef
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IEEE Access, 2019 In the context of green communication and energy-efficiency in wireless communication, this paper investigates distributed estimation algorithms in an energy-constrained wireless sensor network and proposes an energy-efficient distributed leader ...
Sander Ulp +2 more
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A class of reduced-complexity hybrid precoding algorithms for MU-MISO OFDM transmission
, 2021 In downstream spatial multiplexing involving multicarrier modulation using a hybrid precoder, several trade-offs have to be made with respect to the hardware complexity of the analog part of the precoder, the computational complexity of the precoders ...
Noels, Nele +2 more
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Rate Fairness and Power Consumption Optimization for NOMA-Assisted Downlink Networks
Energies, 2020 This paper considers a non-orthogonal multiple access (NOMA) downlink network, where a hybrid of NOMA and beamforming designs is developed to enhance the channel capacity.
Kha-Hung Nguyen +4 more
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Finding groups in data: Cluster analysis with ants [PDF]
, 2009 Wepresent in this paper a modification of Lumer and Faieta’s algorithm for data clustering. This approach mimics the clustering behavior observed in real ant colonies.
Urszula Boryczka +2 more
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Blind Adaptive Beamformer Based on Orthogonal Projections for GNSS [PDF]
, 2012 The quality of the ranging data provided by a global navigation satellite systems (GNSS) receiver largely depends on the synchronization error, that is, on the accuracy of the propagation time-delay estimation of the line-of-sight (LOS) signal.
Noll, Tobias G. +4 more
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FRAMEWORK FOR COMPARING SEGMENTATION ALGORITHMS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 The notion of a ‘Best’ segmentation does not exist. A segmentation algorithm is chosen based on the features it yields, the properties of the segments (point sets) it generates, and the complexity of its algorithm. The segmentation is then assessed based
G. Sithole, L. Majola
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Time multigrid methods and D-adaptivity for coupled fluid flow solvers [PDF]
, 2002 This Thesis is about the application of coupled multigrid solvers to the numeri- cal simulation of viscous incompressible fluids. In the centre of discussion is the adaptivity between a one-dimensional solver and a two-dimensional one. The methodology
Fernandes, Aurelio
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Experimental Results of Novel DoA Estimation Algorithms for Compact Reconfigurable Antennas
International Journal of Antennas and Propagation, 2017 Reconfigurable antenna systems have gained much attention for potential use in the next generation wireless systems. However, conventional direction-of-arrival (DoA) estimation algorithms for antenna arrays cannot be used directly in reconfigurable ...
Henna Paaso +6 more
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We study numerical methods and algorithms for time-dependent fractional-in-space diffusion problems. The considered anomalous diffusion is modelled by the fractional Laplacian (−Δ)α, 0<α<1, following the integral definition.
Svetozar Margenov, Dimitar Slavchev
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