Abstract
The necessity of developing a mathematical model for the functioning of multi-antenna radio communication facilities with spectrally effective signals under the influence of destabilizing factors has been substantiated. The results of the study of the influence of destabilizing factors on the multi-antenna systems with spectrally effective signals are presented. New analytical dependences have been obtained, which make it possible to calculate the effect of destabilizing factors on the efficiency of multi-antenna system with spectrally effective signals. Object of research: development of a mathematical model of the functioning of multi-antenna radio communication facilities with spectrally effective signals under the influence of destabilizing factors. Investigated problem: taking into account additional destabilizing factors on the multi-antenna of a radio communication facility with spectrally effective signals. Main scientific results: when transmitting information in multi-antenna radio communication systems with spectrally effective signals, the following are taken into account: Type of parameters of deliberate interference, type and parameters of deliberate fading, type and parameters of security code structures, phase jitter, slope of the constellation matrix, Intersymbol interference, high mobility of objects (transmitter and receiver), the number of receiving and transmitting antennas, the number of subcarriers in the antenna channel. It has been established that taking into account all the parameters in the system makes it possible to assess the state of the channel, to develop measures to reduce the negative influence of destabilizing factors on the noise immunity of multi-antenna systems. A review of the practical use of research results: radio communication facilities with programmable architecture. Innovative technologies product: technology for substantiating the architecture of transceivers, software for programmable radio equipment, which can increase the noise immunity of radio communications, taking into account additional destabilizing factors and software for radio monitoring equipment. Overview of an innovative technological product: programmable radios, software for radio communications.
Highlights
MIMO (Multiple Input Multiple Output) technology has found practical application in many modern telecommunication systems
New analytical dependences have been obtained, which make it possible to calculate the effect of destabilizing factors on the efficiency of multi-antenna system with spectrally effective signals
As an alternative to the Orthogonal Frequency Division Multiplexing (OFDM) technology [3, 4], in order to increase the frequency efficiency of the channels, it is proposed to use Spectrally Efficient Frequency Division Multiplexing (SEFDM) signals [5, 6]
Summary
MIMO (Multiple Input Multiple Output) technology has found practical application in many modern telecommunication systems. The above stipulates the search for new scientific approaches to increase the energy and frequency efficiency of multi-antenna systems using hybrid information technology MIMO-SEFDM. All this confirms the relevance of the chosen research direction. Proposed solution to the problem In order to increase the energy and frequency efficiency of radio communication systems, it is proposed to jointly use multi-antenna systems with spectrally efficient signals. That is why the aim of research is to develop a mathematical model of the functioning of multi-antenna radio communication facilities with spectrally effective signals under the influence of destabilizing factors
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