Increasing of the qam symbols reconstruction accuracy when applying the filtered orthogonal frequency division multiplexing method

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Resumo

The filtered orthogonal frequency division multiplexing method used for the transmission of the signals with spectra in adjacent frequency subbands has been analyzed. Three types of errors appearing when applying the method for quadrature amplitude modulation symbols transmission have been described. For the error reduction the modified algorithm based on cyclic convolution properties has been developed. In the numerical experiment, the classical and modified algorithms have been applied in combination with modulation schemes of large order.

Sobre autores

K. Budunova

Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences

Autor responsável pela correspondência
Email: 1917schw@mail.ru
Rússia, Mokhovaya Str., 11, Build. 7, Moscow, 125009

V. Kravchenko

Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences; Bauman State Technical University; Scientific and Technological Center of Unique Instrumentation, Russian Academy of Sciences

Email: kvf-ok@mail.ru
Rússia, Mokhovaya Str., 11, Build. 7, Moscow, 125009; 2nd Baumanskaya Str., 5,Build. 1, Moscow, 105005; Butlerova Str., 15, Moscow, 117342

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