Modeling of Spectrum Sharing Based Multifrequency UWB Radio Access Systems

The characteristics of a multifrequency UWB system with combining OFDM technologies and code division of subscribers and a multifrequency UWB system with DF signals using their computer simulation models are investigated, and the influence of identified narrowband (NB) and wideband (WB) types is investigated in accordance with the proposed channel model) interference to the UWB systems under investigation and the possibility of sharing RFS for each type of multifrequency UWB systems under consideration. Practical recommendations on the boundaries of the change in the characteristics of the signals of systems under which the spectrum is shared are developed. A mask of the signal spectrum of a multi-frequency UWB radio access systems in one frequency channel is proposed, taking into account the requirements of the SCRF. The estimates of studies of the influence of high-power stationary narrow-band and broadband jamming on the characteristics of multifrequency UWB systems in the conditions of a multipath channel with AWGN are of independent value for the developers of radio access systems obtained during a semi-naturals computer experiment