We present a novel precoding or modulation scheme (matrix modulation) that allows parallel transmission of several data signals over an unknown multiple-input multiple-output (MIMO) channel. We first present a theorem on unique signal demodulation and an efficient iterative demodulation algorithm for transmission over an unknown instantaneous-mixture channel. We then generalize our results to a...

We report a measurement of the large optical transmission matrix (TM) of a complex turbid medium. The TM is acquired using polarization-sensitive, full-field interferometric microscopy equipped with a rotating galvanometer mirror. It is represented with respect to input and output bases of optical modes, which correspond to plane wave components of the respective illumination and transmitted wa...

This paper presents a practical scheme that can be used for allocating the transmission loss to generators and loads. In this scheme first the share of a generator or load on the current through a branch is determined using Z-bus modified matrix. Then the current components are decomposed and the branch loss allocation is obtained. A motivation of proposed scheme is to improve the results of Z-...

The problem of sound transmission and reflection from unbounded panels of functionally graded materials is studied using an analytical approach. By means of matrix manipulation and Fourier component analysis, the three-dimensional (3-D) governing equations of elastodynamics are converted into a system of ordinary differential equations with variable coefficients in the frequency and wavenumber ...

In this paper, three analytic closed form solutions are introduced for arbitrary Nonuniform Transmission Lines (NTLs). The differential equations of NTLs are written in three suitable matrix equation forms, first. Then the matrix equations are solved to obtain the chain parameter matrix of NTLs. The obtained solutions are applicable to arbitrary lossy and dispersive NTLs. The validation of the ...

We consider different high rate space-time modulation methods and related (re)transmission strategies in a MIMO channel. The proposed matrix modulators exploit the MIMO channel in increasing the peak rate via power-efficient parallel transmission, whereas the self-orthogonalizing retransmission and signal combining strategies improve ultimate throughput.

A numerical method using a Pad e Approximation has been developed for the solution of the vectorial diiraction problem of a homogeneous plane wave with arbitrary angle of incidence by an innnite dielectric grating. The method is based on the Coupled Wave Theory. After discretization of the grating by a division into planar layers, the transmission matrix of each layer is calculated with a Pad e...

We address the problem of acquiring and transmitting EEG signals in Wireless Body Area Networks (WBAN) in an energy efficient fashion. In WBANs, the energy is consumed by three operations: sensing (sampling), processing and transmission. Previous studies only addressed the problem of reducing the transmission energy. For the first time, in this work, we propose a technique to reduce sensing and...

The basic reproduction number is a key parameter in mathematical modelling of transmissible diseases. From the stability analysis of the disease free equilibrium, by applying Routh-Hurwitz criteria, a threshold is obtained, which is called the basic reproduction number. However, the application of spectral radius theory on the next generation matrix provides a different expression for the basic...

Abstract: We discuss basically the importance of reproduction number in Mathematical modeling as a summary measure of the transmission potential of an infectious disease.The basic reproduction number R0 for a compartmental disease model is often calculated by the next generation matrix (NGM) approach. It provides significant insight into the transmission dynamics of a disease and can guide stra...