Mathematical model channel in the middle of the room systems 5G and 6G

Abstract

For point-to-point connections in 5G systems, the E-band [1] has already been standardized, which means that the next generation of 6G will also use it. The E-band is located in the frequency range from 60 to 90 GHz. The use of the E-band allows radio systems to approach data transmission over optical fiber in terms of connection speed [1]. An increase in the frequency of the operating range automatically leads to a decrease in the coverage area of one transmitter. The size of cells in 5G and 6G systems is already micro-cells and pico-cells, which sometimes provides coverage only in a certain building. Most of the models used to calculate radio routes located inside buildings are based on the formula describing the propagation of radio waves in free space. However, the presence of walls, floors, furniture, people and other objects significantly affects the nature of radio wave propagation. The variety of conditions leads to the necessity of using some empirical models based on numerous experiments to investigate the conditions of radio wave propagation indoors. In this work, it is proposed to take two models as a basis - an experimental one [3] and an analytical one taking into account the reverberation field [2]. The combination of the analytical and experimental model allows you to estimate both the line-of-sight channel and the channel without line-of-sight; take into account the individual features of the premises, significantly reducing the error characteristic of experimental models; Due to the use of the indicator of the degree of losses on the route according to the experimental model, it is possible to more accurately take into account the nature of the premises. Thus, it is possible to combine the advantages and reduce the disadvantages of two modeling approaches.