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Methods for early recognition of OFDM data
R.R. Yuzkiv 1, V.A. Fedoseev 1,2, V.V. Myasnikov 1,2, V.V. Sergeyev 1,2
1 Samara National Research University, Moskovskoye Shosse 34, 443086, Samara, Russia,
2 IPSI RAS – Branch of the FSRC “Crystallography and Photonics” RAS,
Molodogvardeyskaya 151, 443001, Samara, Russia
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Full text of article: Russian language.
A technique of early recognition (recovery) of data transmitted using OFDM technology by an incompletely received signal is considered. Theoretically, this approach is able to increase the speed of information transfer, as well as the resistance of the de-encoder to the loss of part of the transmitted signal. The article proposes a mathematical formulation of the OFDM signal early recognition problem, and also discusses several methods for solving it: a regularization method, an iterative method based on the fast Fourier transform, a gradient method based on learning, and an inverse operator method. The possibility of simultaneously using several methods to improve the accuracy of information recovery is considered. The results of numerical experiments presented in this work confirm the practical potential of the proposed approach.
OFDM, frequency modulation, signal recovery, early recognition, gradient descent, error-correcting codes.
Yuzkiv RR, Fedoseev VA, Myasnikov VV, Sergeyev VV. Methods for early recognition of OFDM data. Computer Optics 2020; 44(1): 60-66. DOI: 10.18287/2412-6179-CO-662.
This work was supported by the Russian Foundation for Basic Research under project No. 18-01-00748 (Sections 1 and 2.1), project No. 19-07-00357 (Sections 2.2-2.4), and by the RF Ministry of Science and Higher Education within the government project of FSRC «Crystallography and Photonics» RAS under agreement 007ГЗ/Ч3363/26 (Section 3).
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