COMPACT PATCH ANTENNA FOR MICROWAVE RANGE
The paper proposes to expand the range of your wireless network to use a small patch antenna using directional properties. The description of the antenna design are described and the principle of its operation, set its frequency and gain. The calculation range of the wireless network with the designed antenna. This graphic of the cross section of the radiation pattern in the horizontal plane, the spatial radiation pattern, based on the values of standing wave ratio against frequency. Designed antenna allows you to ensure the radio range of standard Wi-Fi line-of-sight at a distance of more than 1500 m, has a fairly wide beamwidth and high gain.
Keywords: patch antenna, wave propagation, data transmission, wireless communication.
THE SIMULATION OF RADIO WAVE PROPAGATION INDOORS
P. S. Ryzhenin
The analysis of such methods, based on which we can assess the level of electromagnetic fields inside premises. It is shown that on the basis of the deterministic methods achieve a higher accuracy of calculations of scattering characteristics of radio waves, when compared with statistical approaches. Occurs building the tree of beam propagation, while fundamentally we see the beam coming from the transmitting device and each point of reflection or diffraction are generated by the additional rays. When multipath propagation of the signal we are seeing some of the most significant effects: fading, time dispersion, the angular modulated carrier. The model rectangular space, which is calculated in the framework of the ray method.
Keywords: ray method, wave propagation, wireless communication, computer networks, antenna.
OPTIMIZATION OF WIRELESS COMMUNICATION NETWORKS BASED ON ARTIFICIAL INTELLIGENCE METHODS
A. A. Maksimova, V. N. Kostrova, A. A. Androsov
The analysis of the approaches designed for the estimation of scattering characteristics of diffractive structures and parameters of wireless communication systems is given. The possibility of optimizing wireless communication systems in the room based on artificial intelligence methods (genetic algorithm) is considered. As the main calculation method is proposed to use the ray-tracing method and an optimization technique – genetic algorithm. In a genetic algorithm it is proposed to use single point crossing-over, defined by its steps. As chromosomes the coordinates of the mesh around the point observations made at a given step are considered. A combined algorithm of calculating the optimal location of access points inside the building is proposed. The results of pre-test calculations are recorded.
Keywords: wireless communication, optimization, communication, radiowave propagation, ray method.
THE STUDY OF THE CHARACTERISTICS OF PROPAGATION OF ELECTROMAGNETIC WAVES IN THE INTERNAL AREAS INDOORS
E.S.Zatsepin, A.G.Sklyar, D.V.Rusanov
In the paper we consider the problem of propagation of electromagnetic waves in the internal area of the premises. Based on the analysis of possible approaches to solving this task the experimental method was chosen. The results obtained for different variants of propagation of electromagnetic waves through different environments were obtained. The structure of subsystem of data processing in the study of the propagation of the radio waves in the room was proposed.
Keywords: : wireless communication, experiment, method, optimization, method, coverage, approximation.
ABOUT THE DESIGN OF WIRELESS COMMUNICATION NETWORKS BASED ON ARTIFICIAL INTELLIGENCE METHODS
In this paper we considered the possibility of optimization of wireless systems communication indoor based artificial intelligence methods.
Keywords: wireless communication, optimization, communication.
THE PARTICULAR QUALITIES OF USING CAD IN THE DESIGN OF WIRELESS COMMUNICATION NETWORKS
In this paper we consider the questions related to computer-aided design of wireless communication systems. The suggestions for modifications to the CAD in the analysis of radio propagation in urban areas are given.
Keywords: wireless communication, automation, communication..
THE CONSTRUCTION OF MODULE FOR CALCULATION MOBILE COMMUNICATION SYSTEMS
This paper considers the model to calculate the wireless communication system based on the ray method. It is proposed to supplement the basic calculation model based on the ray method, another methods allowing to take into account features of objects or clarify propagation characteristics. The structure of the module design of a wireless communication system is given.
Keywords: : CAD, wireless communication, radiation method, physical optics, the method of integral equations.