Results 21 to 30 of about 525,717 (358)
LoRa Throughput Analysis With Imperfect Spreading Factor Orthogonality [PDF]
IEEE Wireless Communications Letters, 2018 LoRa is one of the promising techniques for enabling low power wide area networks for future Internet-of-Things devices. Although LoRa allows flexible adaptations of coverage and data rates, it is subject to intrinsic types of interferences: co-SF ...
Antoine Waret +3 more
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Gabor systems on positive half line via Walsh-Fourier transform
Karpatsʹkì Matematičnì Publìkacìï, 2020 Gabor systems play a vital role not only in modern harmonic analysis but also in several fields of applied mathematics, for instances, detection of chirps, or image processing.
O. Ahmad, N.A. Sheikh
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On Design Orthogonality, Maximin Distance, and Projection Uniformity for Computer Experiments
Journal of the American Statistical Association, 2020 Space-filling designs are widely used in both computer and physical experiments. Column-orthogonality, maximin distance, and projection uniformity are three basic and popular space-filling criteria proposed from different perspectives, but their ...
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A Compact and Straightforward Self-Decoupled MIMO Antenna System for 5G Applications
IEEE Access, 2020 This study investigates a compact and straightforward self-decoupled 2 × 2 multiple-input multiple-output (MIMO) antenna set and its applications for current and future 5G terminal devices.
Haiyan Piao, Yunnan Jin, Longyue Qu
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Orthogonality Catastrophe as a Consequence of the Quantum Speed Limit. [PDF]
Physical Review Letters, 2019 A remarkable feature of quantum many-body systems is the orthogonality catastrophe that describes their extensively growing sensitivity to local perturbations and plays an important role in condensed matter physics.
Thomás Fogarty +3 more
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Quantitative Analysis of the Balance Property in Factorial Experimental Designs 24 to 28
Mathematics, 2022 Experimental designs are built by using orthogonal balanced matrices. Balance is a desirable property that allows for the correct estimation of factorial effects and prevents the identity column from aliasing with factorial effects.
Ricardo Ramírez-Tapia +4 more
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Rational orthogonal versus real orthogonal [PDF]
The Electronic Journal of Linear Algebra, 2009 23 ...
Simone Severini +2 more
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Negative $q$-Stirling numbers [PDF]
Discrete Mathematics & Theoretical Computer Science, 2015 The notion of the negative $q$-binomial was recently introduced by Fu, Reiner, Stanton and Thiem. Mirroring the negative $q$-binomial, we show the classical $q$ -Stirling numbers of the second kind can be expressed as a pair of statistics on a subset of ...
Yue Cai, Margaret Readdy
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The Othogonality of Martingale in Birkhoff’s sense and others
Tikrit Journal of Pure Science, 2019 Orthogonality is one of an important the concepts in Mathematics , therefor it will be discussed in this paper, the orthogonality of martingale according to Birkhoff ’s, Roberts’s, Singer’s, Carlsson’s sense for orthogonality and the conditions that ...
Suha Jumaa, H.H.Ibrahim
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Orthogonal polynomials with orthogonal derivatives [PDF]
Bulletin of the American Mathematical Society, 1938 We are concerned with the following assertion: THEOREM. If {φn(x)} and { φn’(x)} are orthogonal systems of polynomials, then {φn(x)} may be reduced to the classical polynomials of Jacobi, Laguerre, or Hermite by means of a linear transformation on x.
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