Análise da complexidade espectro-computacional de códigos de correção de erro para sinais OFDM

Abstract

With the increasing need to send more and more information using new telecommunications standards, the demand for optimizing data sending arises. Therefore, we need a way to measure the flow of bits that pass through a channel and are decoded correctly, called Spectro-Computational Flow. It combines the correctly encoded bits with the time spent decoding them. This analysis was carried out using liquid-dsp library, supported by libcorrect and fftw libraries. With this library, experiments were carried out simulating different values of signal-to-noise ratio, different valuesof message bits, varying the error correction code used to correct possible faults and a new approach for sending bits with a logical division of the channel is also proposed, in this way, the number of test carriers compared to the standard remains the same, but with the addition of one more decoder and one more encoder. With the experiments carried out, a greater flow rate was noticed in this new way, opening the possibility of further tests with the approach carried out in this work to see if it can be used in future telecommunications standards.