ANALYSIS OF SPATIAL-TIME CHARACTERISTICS OF A RADIO LINE WITH MULTIPATH WITHIN 5G TECHNOLOGY
Keywords:multipath, 5G, 4G, LTE, Cassini Oval, OFDM
Background. As a result of the reflection of rays from buildings, from the surface of the Earth or from horizontal boundaries between different layers of the atmosphere, multipath effects occur that cause fast fading, which affects the quality of service.
Objective. Determine the spatial-time parameters of the directly received and reflected signals for the conditions of conducting wireless communications specific to 5G technology.
Methods. The delay time of the beam reflected from the obstacle with respect to the direct beam at the receiving point and the transmission rate of the streams for different frequency ranges are calculated.
Results. For the 900 MHz, 2.4 GHz, and 5 GHz ranges, the maximum delay of the reflected beam, at which the end of the main signal coincides with the moment of arrival of the reflected beam, corresponds to the transmission rates of the streams 1.1, 1.2, and 1.34 Mbps, respectively.
Conclusions. A technique is proposed for determining the spatio-time parameters received directly and reflected signals for the conditions of conducting wireless communications, typical for 5G technology
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