Impacts of noise and interference on the bit error rate of the FBMC-OQAM modulation scheme in 5G systems

Objectives. The work sets out to evaluate the noise immunity of the signal modulation method in 5G networks using a filter bank multicarrier with offset quadrature amplitude modulation (FBMC-OQAM) and to analyze the bit error rate (BER).

Methods. In the work, probability theory and mathematical statistics methods are applied according to computer modeling approaches.

Results. An analysis of BER for the signal modulation method in 5G networks, which uses a bank of filters with multiple carriers with offset quadrature amplitude modulation under noise conditions, is presented. The resistance of the method to intra-cell, inter-cell, and inter-beam types of interference in the 5G channel, as well as additive white Gaussian noise, is investigated. The graphical and numerical data obtained through computer modeling demonstrates improved BER in 5G networks using FBMC-OQAM. The presented comparative analysis of error probability in the FBMC-OQAM system under various types of noise and interference emphasizes the impact of these factors on the quality of information transmission.

Conclusions. The FBMC-OQAM method is characterized by the low impact on the error probability of the data transmission system in 5G networks of various types of interference including intra-cell and inter-cell interference, inter-beam interference, and nonlinear distortions. However, it will be necessary to further optimize the method and develop algorithms for enhancing error probability in the FBMC-OQAM system under real conditions in 5G networks. The research results can be used in the development of 5G networks.

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