Increases of capacity of telecommunication system with МІМО

DOI: 10.31673/2412-9070.2020.035560

Abstract

The actual issue of increasing the data transfer rate in telecommunication systems with MIMO is considered. It is proposed to use an increase in the signal-to-noise ratio due to the processing and addition of signals from parallel antenna channels to increase the throughput of the system by applying quadrature amplitude manipulation. System simulation for MIMO 4x4. The error probability for QAM is calculated. A method is proposed that allows to increase by 4 times the information transfer rate while maintaining the signal duration and, accordingly, the bandwidth of the radio channel. According to the proposed methodology, telecommunication systems can be created with large numbers of multiposition amplitude-manipulated signals, as well as in combination with multiposition phase-shifted signals. It is shown that an increase in the signal-to-noise ratio when processing signals from parallel antenna channels cannot increase the system capacity, but only lead to a decrease in the signal reception error.

Keywords: bandwidth; MIMO; signal/noise; multi-position signal.

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