## 2 Related Works  
Recently, the challenges of modeling the structure of a wireless network draw special attention due to their constant importance in the development of both mobile networks and other wireless networks. In addition, the choice of the network structure has a noteworthy effect on the overall performance. However, significant efforts have been made to address these challenges. In this section, a brief overview of the related works will be given below.  
In particular, [PERSON] et al. [13; 14] proposed two models for ensuring the efficiency of a wireless broadband access network. These models are based on the orthogonal frequency-division multiplexing (OFDM) channel, which can allow for solving the optimizing problem of channel parameters (frame length) in which the inter-channel interference is considered. In addition, it is possible to improve the efficiency of network planning by taking into account data about the existing environment and users.  
Methods for ensuring the efficiency of solving problems of out-of-band clustering of devices in 5G networks are described in [15; 16], in which the authors analyzed the solutions to the clustering problem based on data on the position of user terminals by two methods and compared the solutions obtained. Simultaneously, the uniform and normal distribution of users over the served territory are also considered. Whereas, the wireless network of the Internet of Things with mobile nodes from the point of view of structure stability has been analyzed in [9]. The authors proposed methods for choosing the structure of routes that increase their stability in conditions of the mobility of network nodes.  
Furthermore, in [17; 18], [PERSON] et. al. analyzed the characteristics of a network built using D2D communications in a high density of subscribers. They considered IoT networks with high user density and assess the impact of user density on the structure of traffic routes.  
More recently, a model of a 5G access network is proposed in [19; 20] in which the influence of blocking of the radio signal by mobile objects (users) is considered, while the authors used a Poisson point process (uniform distribution in the service area) as a model for a group of subscribers.  
It is seen from the above review of related work, users in an access network or nodes in a wireless sensor network are modeled by point processes, such as Poisson field or fields with other properties. However, the researcher does not have a numerical characteristic that would describe the features of the real environment and allow them to be related to the properties of the model. In addition, most of the works are aimed at increasing the efficiency of the access network by choosing the parameters of the channel or its structure under the conditions of a given distribution of users. Moreover, in most cases, this distribution is assumed to be uniform. Despite the usefulness of such solutions, it should be noted that in most cases, the distribution of users is uneven, and in some cases, the assumptions made can significantly differ the models from real structures. Therefore, in this paper, we propose a model for the distribution of users over the service area, taking into account the features of the environment, which are numerically expressed in the form of the Hurst parameter or fractal dimension. These properties can be estimated numerically in the target environment and also reflected numerically in its model. This allows us to approximate the properties of the model to the properties of the environment it describes.