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

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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.

作者简介

K. Budunova

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

编辑信件的主要联系方式.
Email: 1917schw@mail.ru
俄罗斯联邦, 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
俄罗斯联邦, Mokhovaya Str., 11, Build. 7, Moscow, 125009; 2nd Baumanskaya Str., 5,Build. 1, Moscow, 105005; Butlerova Str., 15, Moscow, 117342

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