Abstract
An algorithm for coherent element-by-element detection with decision feedback is proposed for signals with non-orthogonal subcarrier frequency spacing. The simulation results in the Matlab environment show that the proposed algorithm is quite effective. The admissible boundary values of the signal-to-noise ratio are determined, at which the effect of the error burst is manifested. The error burst of decision feedback affects the reduction of the performance of detection, starting from the values of the bit error rate BER = 0.1–0.3 at the normalized frequency spacing α = 0.3–0.4. In addition, it is determined that the decision feedback depth is effective in value of not more than 4.
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The results of the work were obtained with the support of the scholarship of the President of the Russian Federation to young scientists and graduate students carrying out promising research and development in priority areas of modernization of the Russian economy for 2021–2023 (CП-1671.2021.3).
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Makarov, S.B., Nguyen, D.C., Zavjalov, S.V., Ovsyannikova, A.S., Nguyen, C.M. (2022). The Effect of Error Burst When Using a Decision Feedback Algorithm for Receiving Non-orthogonal Multi-frequency Signals. In: Koucheryavy, Y., Balandin, S., Andreev, S. (eds) Internet of Things, Smart Spaces, and Next Generation Networks and Systems. NEW2AN ruSMART 2021 2021. Lecture Notes in Computer Science(), vol 13158. Springer, Cham. https://doi.org/10.1007/978-3-030-97777-1_32
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