THE MODELING OF THE SCATTERING OF RADIO WAVES OF CELLULAR COMMUNICATION SYSTEMS ON THE ELEMENTS OF BUILDINGS
A.A. Alimbekov, E.A. Avdeenko, V.V. Shevelev
This paper considers the problem of scattering of electromagnetic waves in cellular communication systems, elements of buildings. As a basic method is proposed to use the radial approach. The main steps of the algorithm for the calculation of total attenuation of the signal caused by the diffraction at the corners of buildings. The loss caused by reflection of the radio signal from the earth, are calculated based on the Fresnel coefficients for a plane wave. Indicated input parameters for the calculation. A diagram of the module of calculation of fields scattered by buildings, which uses a block optimization. A classification of optimization techniques used in the optimization of communication systems. Methods associated with unconditional optimization are divided into: one-dimensional case multidimensional case. Optimization methods are divided into these: optimization under linear constraints, optimization under nonlinear constraints.
Keywords: diffraction, building, link, beam, electromagnetic wave scattering.