Development of noise-resistant decoders for systems with orthogonal frequency separation

Authors: Samatov T.M.
Published in issue: #2(43)/2020
DOI: 10.18698/2541-8009-2020-2-579
Category: Informatics, Computer Engineering and Control | Chapter: System Analysis, Control, and Information Processing, Statistics
Keywords: noise-resistant coding, Bowes-Chowdhury-Hockingham code, Golei code, transmission efficiency, modeling in MATLAB Simulink, orthogonal separation, modulation
Published: 13.02.2020

The article is devoted to the main components of a digital data transmission system with orthogonal frequency division. One of the methods for efficiently implementing orthogonal separation of signal subcarriers is presented. The method of increasing the efficiency of data transmission, which consists in the use of noise-resistant coding, is analyzed. A model of a digital data transmission system was developed in the MATLAB Simulink package using noise-resistant coding and OFDM modulation. Simulation was carried out and bit error coefficients were calculated for three different variants of the developed system. The simulation results are presented in the form of dependences of bit error probability on the signal-to-noise ratio in the transmission channel, showing that the Golei code (23, 12) gives the best result, since it is able to correct more errors than other codes.

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