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In this report, we provide a comparative study of state-of-the-art in Orthogonal Frequency Division Multiplexing techniques. In order to achieve better spectral efficiency, OFDM/OQAM using well designed pulses with proper Time Frequency Localization is of great interest.
This paper contains a description of the proposed 2D - 3D - 2D′ method, which allows transition from the existing two-dimensional dependences to the ancillary three-dimensional dependences and follows to the required two-dimensional dependences. It helps to simplify the research
That the environment of distribution brings in distortion in an ideal signal, radiated a transmitter, both as a result of addition of noises and by distortion of useful signal. Noises of radio channel include base-line noise of ether, parasite radiations of industrial electrical equipment and other extraneous radiations.
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