Перегляд за автором "Dudka, O."

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  • Зображення мініатюри
    Публікація
    Basic technologies and techniques ML/AI for improving physical layer security for 5G/6G communications systems
    (2023) Tsopa, O.; Dudka, O.; Merzlikin, A.
    One of the main features of using the millimeter wave band in the deployment of 5G/6G technologies is that these waves have a narrower range and less ability to penetrate obstacles such as buildings and trees [1,2]. Therefore, millimeter waves require a larger number of communication nodes located closer to each other to ensure network coverage. In addition, due to the high frequency of millimeter waves, they are subject to greater signal scattering and absorption from surfaces such as building walls and other obstacles, which can result in reduced data transmission range. Therefore, it is necessary to consider engineering solutions and technologies of artificial intelligence (IA) and machine learning (ML), which will allow ensuring high-quality communication between communication nodes, taking into account the peculiarities of the millimeter range of radio waves. However, thanks to the high bandwidth of the millimeter wave band, 5G/6G technology can provide high-speed transmission of large amounts of data, enabling new applications and services such as virtual reality (VR), augmented reality (AR), augmented reality (XR), Internet of Things (IoT) and others. Therefore, using the millimeter range of radio waves is an important element of 5G/6G technology that requires specific solutions to ensure reliability and security at the physical level of the network.
  • Зображення мініатюри
    Публікація
    Estimation of the Bandwidth of the Communication Channel of 5G Networks Based on Small Cells
    (2021) Tsopa, O.; Dudka, O.; Merzlikin, A.; Ruzhentsev, N.
    The article is devoted to the problem of using 5G millimeter waves band (MM WB) in wireless communication systems of the next generation. The aim of the work is to clarify the calculation methods and estimate the availability parameters and performance of communication channels in the millimeter wavelength band when deploying 5G communication network segments in various climatic zones of Ukraine.
  • Зображення мініатюри
    Публікація
    Mobile Expert System for Diagnostic Human State in Emergency Situations
    (WARSE, 2020) Kuzomin, O.; Dudka, O.; Vasylenko, O.; Shylo, R.; Lyashenko, V.
    An obligatory stage of any purposeful activity in emergency situations (emergency) is to make decisions on elimination of the emergency consequences and assistance to the victims, and if necessary, their evacuation. Not only the wrong but also the ineffective decisions could lead to human losses or irrational use of financial, labor, environmental, energy and other resources. In this regard, the problem of developing a scientific methodology for making effective decisions is one of the pressing scientific problems. The purpose of the study is to enhance the first “rescue-victim” interaction when the rescuer or doctor asks the patient specific questions to make decisions. The biggest cost is the waste of time, which can be significantly reduced by using a chat bot conversation with emergency victim.
  • Зображення мініатюри
    Публікація
    The Patient Organism Modeling for Diagnosis with the Usage of a Multi Agent Representation
    (WARSE, 2020) Kuzomin, O.; Dudka, O.; Vasylenko, O.; Lyashenko, V.
    The main ideas for building a multi-agent model of intelligent modeling for diagnosis are offered. The peculiarities of actions in a certain system of medical environment are indicated. The function of a medical agent is defined, which determines the actions that can be used by a medical agent in response to any sequence of acts of perception of medical data and knowledge. The problem of development of the specification of the problem medical agent is considered. The direction of development of the program of the medical agent is shown. Consider the requirements for the creation of reflex medical agents that respond directly to acts of perception. The requirements for the design of target-based agents are also considered.
  • Зображення мініатюри
    Публікація
    Using of Ontologies for Building Databases and Knowledge Bases for Consequences Management of Emergency
    (WARSE, 2020) Kuzomin, O.; Dudka, O.; Vasylenko, O.; Radchenko, V.; Lyashenko, V.
    The modeling of decision support for emergency consequences management is investigated. The presentation of information of injuries or illnesses of the victim when first examined by a rescuer or doctor is used to establish a diagnosis of the symptoms of the disease or to identify the consequences of the injuries. This approach is used to represent ontological data. The precedent technology for describing emergency response scenarios is presented in this article.