D.Yu. Charkin1

1 JSC «Concern «Sozvezdie» (Voronezh, Russia)

1 d.yu.charkin@sozvezdie.su

Traditionally, wireless non-stationary radio communication networks use omnidirectional antennas. With this approach, when exchanging information between two nodes, interference is created for other network users from the immediate vicinity, which leads to a decrease in its survivability. One of the possible ways to solve this problem is the spatial separation of network nodes due to the use of directional antennas. However, at the moment there is no analytical mathematical apparatus that allows analyzing the effect of the directivity of antenna systems on the survivability (connectivity) of a telecommunication radio network. The article derives analytical relationships that allow estimating the probability of connectivity of both the entire arbitrary or random telecommunication network and its individual elements, taking into account the directivity of the antenna system. It is found that the survivability of an individual network element depends on the width of the antenna system radiation pattern, the probability of data transmission by the node, the degree of the receiving node and the required threshold value of the signal / (noise + interference) ratio. The probability of connectivity of the entire network, in addition to the listed parameters, will also be determined by the polarity of the network. Based on the analysis conducted using the derived relationships; it is shown that the network whose antenna elements have a beamwidth of less than 45 degrees will have the greatest connectivity. In this case, connectivity will decrease proportionally to the increase in the probability of transmission by one node.

Charkin D.Yu. Evaluation of the influence of antenna directionality on the survivability of telecommunication networks. Radiotekhnika. 2025. V. 89. № 9. P. 155−162. DOI: https://doi.org/10.18127/j00338486-202509-16 (In Russian)

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