Báo cáo hóa học: " Research Article A Variational Approach to the Modeling of MIMO Systems" docx

... proposed a variational relation for approaching MIMO channel; see (7)–(11). This is a scalar equation involving the minimum distance δminas a random variable. Restrictingour analysis to the case ... Pefor a given SNR, we study the determination of the theoreticalvalue of the optimal number of antennas. This theoreticalanalysis, which uses a statistical approach, allows to predict the number ... task.However, there is a clever way to extract information fromthis matrix without going into involved mathematical anal-ysis. The idea is to optimize the above scattering equationusing a variation approach...

Báo cáo hóa học: "Research Article A Novel Approach to the Design of Oversampling Low-Delay Complex-Modulated Filter Bank Pairs" doc

... in the passband but also in the transitionband. The mean value of the group delay ranges below that of linear-phase filters of the same length. The observed overallsignal delay lies within the ... groupdelay was proposed that is based on the Remez exchangealgorithm. With the mentioned approaches a filter group2 EURASIP Journal on Advances in Signal Processingdelay can always be obtained that ... shownthat his algorithms for the constrained design of digitalfilters with arbitrary magnitude and phase responses have the potential to achieve a considerable reduction of group delayas compared to...

Báo cáo hóa học: " Research Article Iterative Reconﬁgurable Tree Search Detection of MIMO Systems" docx

... Section 5, the performance of the following two cases are given: the case with separatingreal and imaginary components, denoted as “IRTS Real,” and the case without separating real and imaginary components,denoted ... prop-agation to improve transmit rate greatly without increasingbandwidth and transmit power. To approach MIMO chan-nel capacity, channel code is usually required to provide re-dundancy to guard ... vectors s, and then sent by multiple an-tennas. At the receiver, the transmitted signals are received onNrreceive antennas, and the received signal vectors y are fed to the MIMO detector. The...

Báo cáo hóa học: " Research Article A Novel Approach to Detect Network Attacks Using G-HMM-Based Temporal Relations between Internet Protocol Packets" pot

... evaluation. The data consisted of threeweeks of training data and two weeks of test data. Amongthese datasets, we used attack-free training data for nor-mal behavior modeling, and attack data was used ... that were incorrectly classifiedas attacks divided by the total number of normal data. The falsenegativerateis defined as the total number of attack datathat were incorrectly classified as normal ... rate is defined as the number of correctlyclassified normal and abnormal packets divided by the totalsize of the test data. The false positive rate is defined as the total number of normal data...

Báo cáo hóa học: " Research Article A New Approach to q-Bernoulli Numbers and q-Bernoulli Polynomials Related to q-Bernstein Polynomials" pdf

... Article A New Approach to q-BernoulliNumbers and q-Bernoulli PolynomialsRelated to q-Bernstein PolynomialsMehmet Açikgöz, Dilek Erdal, and Serkan AraciDepartment of Mathematics, Faculty of Science ... polynomials,” in Proceedings of the 8th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM ’10), AIP, Rhodes,Greece, March 2010.5 L. Carlitz, “q-Bernoulli numbers and ... 8th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM’10), AIP, Rhodes, Greece, March 2010.2 M. Açıkgöz and Y. S¸ims¸ ek, A new generating function of q-Bernstein-type...

Báo cáo hóa học: "Research Article A Decentralized Approach for Nonlinear Prediction of Time Series Data in Sensor Networks" pptx

... which leads to minimal distortion of the data.In this paper, we propose a new approach to modelphysical phenomena and track their evolution over time. The new approach is based on a kernel machine ... notation. Radial kernels have a naturalinterpretation in terms of measure of similarity in X, as the kernel value is larger the closer together two locations are.Two typical examples of radial ... xj)||xi−xj||0Gaussian kernelLaplacian kernelFigure 1: Shapes of the Gaussian and the Laplacian kernels around the origin.more classical and universal ones. In this paper, without anyessential loss of...

Báo cáo hóa học: " Research Article A Generalized Approach to Linear Transform Approximations with Applications to the Discrete Cosine Transform" pptx

... that adapts to the available computationalresources. We will show how to compute and embedmetadata in the image as well as show a decodingalgorithm to allow for adaptive approximation. The metadata ... framework that enables us to systematically change the approximation in real-time to take advantage of additionalcomputational resources to minimize distortion.1.2. Our approach In this paper, ... discuss the metadata that needs to be embedded at the encoder, to allow the decoder to approximate the transform T in an adaptive manner, inresponse to changing computational constraints. We needto...

Báo cáo hóa học: " Research Article A Practical Approach for Simultaneous Estimation of Light Source Position, Scene Structure, and Blind Restoration Using Photometric Observations" pot

... regularization approach is then used to estimate the light source position, scene structure, and blur parameter. The optimization is carried out using the graph cuts approach. The advantage of the ... gradients and the albedo and alsoperform blind image restoration. The surface gradients and the albedo are modeled as separate Markov random fields(MRFs), and a suitable regularization scheme ... surfacegradients, and the blur parameter.6.1. Data fitting termSince, we have many observations of the same stationaryobject captured with a stationary camera, the data fittingterm (from (3)) can be written...

Báo cáo hóa học: " Research Article A New Estimate on the Rate of Convergence of ´ Durrmeyer-Bezier Operators" ppt

... urrmeyer-B´ezier operators Dn,αare an important approximation operator of new type, the purpose of this paper is to continue studying the approximation properties of the operators Dn,αfor functions of bounded ... the approximation properties of operators Dn,1f and some results onapproximation of functions of bounded variation by positive linear operators, one can refer2 Journal of Inequalities and ... variation, and give a better estimate than that of Theorem A by means of some probabilistic methods and inequality techniques. The result of this paper is as follows.Theorem 1.1. Let f be a...

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