Radiowaves propagation model of unmanned aerial system data

Abstract

The offered model of radiowaves propagation of the unmanned aerial system data link is realized in two stages: calculation of middle radius of coverage area and his further elaboration by geometrical methods along the separate directions with the expressed relief inhomogeneities. Underestimation of this factor can be a reason of absence of receiving signal which leads to interruption of integrity of information, or can be an occasion of propagation of radiowaves beyond of destination area which creates a precondition of leaking or physical interception of information. The model allows to promote the level of informative integrity, availability and safety of data exchange due to a removal of propagation of radiowaves out of setting. Also it promotes reduction of probability of leaking and physical interception of information as well as retain of necessary level of availability and integrity of information. Index Terms-Coverage area; model of propagation of radiowaves; base station; terminal; availability of information; integrity of information; interception of information; leaking of information.

Modeling of the Сellular Сommunication System Coverage Area Taking into Account the External Details of the Terrain

“…In this case, radio waves reflected from high-rise buildings outside the contour of the coverage area can significantly affect the contour formation. This phenomenon was not taken into account in the results [10].…”

“…1. We have discussed this situation in [10]. Here we discuss new studies on how the reflection of radio waves from obstacles located outside the contour of the coverage area affects the result of this area formation.…”

“…-for each selected sector, calculate the distance of a stable communications using the Walfisch-Ikegami model [10] for the phenomena of diffraction and interference. In this case, the wave intensity at the receiving point is taken equal to the sensitivity of the base station receiver;…”