Wireless underground sensor networks (WUSN) consist of wireless devices that operate below the ground surface. These devices are buried completely under dense soil, thus electromagnetic wave transmits only through soil medium. However, the high attenuation that caused by soil is the main challenge for the electromagnetic wave transmission for WUSN. In this study, architecture of wireless underg...

The propagation of arbitrary amplitude dust ion acoustic waves (DIAWs) in a magnetized collisional dusty plasma including hot electrons, with kappa velocity distribution for electrons, warm ions and dust particles has been studied. In the presence of immobile massive dust particulates, DIAWs have been investigated through the Sagdeev pseudo-potential method. It is demonstrated that the amplitud...

Propagation of electromagnetic waves in forest environments is examined in which both the transmitting and receiving points are located in the trunk layer of a four-layered anisotropic forest model. This propagation model considers the forest as a horizontally stratified, anisotropic media of canopy and trunk, bounded by ground below and air above. The electromagnetic fields are obtained using ...

It is pointed out that the classical propagation model can be in accord with the Sagnac effect due to earth’s rotational and orbital motions in the high-precision GPS (global positioning system) and interplanetary radar, if the reference frame of the classical propagation medium is endowed with a switchability according to the location of the wave. Accordingly, it is postulated that, as in the ...

Propagation of the extremely short electromagnetic pulse in non-linear dielectric media without the slowly varying envelope approximation is discussed. The models under consideration take into account both resonant and not-resonant excitations of non-linear medium, and polarisation states of electromagnetic wave. Steady state solutions of the relevant equations are presented for certain of thes...

In the domain of electromagnetic wave propagation in the presence of rough surfaces, the Rayleigh roughness criterion is a widelyused means to estimate the degree of roughness of considered surface. In this paper, this Rayleigh roughness criterion is extended to the case of rough layers. Thus, it provides an interesting qualitative tool for estimating the degree of electromagnetic roughness of ...

We analyze the propagation of an electromagnetic plane wave through a chiral medium moving with a constant velocity and endowed with the Post constitutive relations. The covariance under the Lorentz group of Maxwell’s equations and of Post’s relations is used to transform the electromagnetic fields in the moving frame into fields in the frame of a fixed observer. The physical consequences of th...

The propagation of intense laser beam through a plasma ablated from a solid target by a focused ns laser beam gives rise to a high-amplitude electron plasma wave, which has the ability to trap and accelerate significant amount of plasma electrons. This can be caused by many physical processes, which laser beam undergoes in the plasma corona. A very important representative of a such process is ...

– We generalize the invariant imbedding theory of the wave propagation and derive new invariant imbedding equations for the propagation of arbitrary number of coupled waves of any kind in arbitrarily-inhomogeneous stratified media, where the wave equations are effectively one-dimensional. By doing this, we transform the original boundary value problem of coupled second-order differential equati...