The communication systems with OFDM-signals have been considered in a comparison with the classic communication systems, which are based on amplitude, frequency and phase modulation types. The possibilily of usage the wavelet transform instead of Fourier transform in such systems has been investigated. The experiment has been done with a matching of received information in two types of OFDM-systems: with Fourier and wavelet transforms. There has been shown that wavelet-basis can lead to the benefit with a selective fadding, so as information in such a signal is not localized in frequency domain, but, on the other hand, is not blurred in the time domain. Thus, the possibility has been demonstrated to build new communication systems, in which the optimal parameters of the system are not distributed in several algorithms, but are concentrated in wavelet transform. Such several algorithms in common OFDM-systems are interleaving coding, OQAM-IOTA, FBMC and others.
07.90.+c Other topics in instruments, apparatus, and components common to several branches of physics and astronomy
02.70.-c Computational techniques; simulations
02.10.-v Logic, set theory, and algebra
$^1$Microwavee Eletronics\
$^2$Moscow State University, Physics Faculty
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