Technical Study on 5G Using Soft Computing Methods

With increasing advancements in the field of telecommunication, the attainment of a higher data transfer rate is essentially a greater need to meet high-performance communication. The exploitation of the fuzzy system in the wireless telecommunication systems, especially in Fifth Generation Mobile Networks (or) 5G networks is a vital paradigm in telecommunication markets. A comprehensive survey is dealt in the paper, where it initially reviews the basic understanding of fuzzy systems over 5G telecommunication. The literature studies are collected from various repositories that include reference materials, Internet, and other books. The collection of articles is based on empirical or evidence-based from various peer-reviewed journals, conference proceedings, dissertations, and theses. Most of the existing soft computing models are streamlined to certain applications of 5G networking. Firstly, it is hence essential to provide the readers to find research gaps and new innovative models on wide varied applications of 5G. Secondly, it deals with the scenarios in which the fuzzy systems are developed under the 5G platform. Thirdly, it discusses the applicability of fuzzy logic systems on various 5G telecommunication applications. Finally, the paper derives the conclusions associated with various studies on the fuzzy systems that have been utilized for the improvement of 5G telecommunication systems.

NPP-Smart Grid Mutual Safety and Cyber Security Assurance

The smart grid (SG) is a movement to bring the electrical power grid up to date so it can meet current and future requirements to fit customer needs. Disturbances in SG operation can originate from natural disasters, failures, human factors, terrorism, and so on. Outages and faults will cause serious problems and failures in the interconnected power systems, propagating into critical infrastructures such as nuclear industries, telecommunication systems, etc. Nuclear power plants (NPP) are an intrinsic part of the future smart grid. Therefore, it is of high priority to consider SG safety, mutual influence between NPP and SG, forecast possible accidents and failures of this interaction, and consider the strategies to avoid them.

Combining Parallel Computing and Biased Randomization for Solving the Team Orienteering Problem in Real-Time

In smart cities, unmanned aerial vehicles and self-driving vehicles are gaining increased concern. These vehicles might utilize ultra-reliable telecommunication systems, Internet-based technologies, and navigation satellite services to locate their customers and other team vehicles to plan their routes. Furthermore, the team of vehicles should serve their customers by specified due date efficiently. Coordination between the vehicles might be needed to be accomplished in real-time in exceptional cases, such as after a traffic accident or extreme weather conditions. This paper presents the planning of vehicle routes as a team orienteering problem. In addition, an ‘agile’ optimization algorithm is presented to plan these routes for drones and other autonomous vehicles. This algorithm combines an extremely fast biased-randomized heuristic and a parallel computing approach.

Design of a 1×2 CPW Fractal Antenna Array on Plexiglas Substrate with Defected Ground Plane for Telecommunication Applications

In this paper, a fractal antenna array for telecommunication applications is presented. The proposed antenna array is realized on a Plexiglas substrate, has 1×2 radiating elements, and dimensions of 170mm×105mm. The antenna array is composed of two Koch Snowflake patches and is fed by a Coplanar Waveguide (CPW) transmission line. Radiating elements and the ground plane are printed on the top side of the substrate. Defected Ground Structure (DGS) technique is employed to enhance the bandwidth and improve the impedance matching. The proposed antenna array operates at two frequency bands, 1.08-1.32GHz covering the GPS band and 1.7-3.7GHz covering the GSM 1800/1900, UTMS, Bluetooth, LTE, and WiMAX bands. In addition, the antenna has a good performance with efficiency and peak gain of 82% and 6.3dB respectively. These characteristics allow the antenna to be an attractive candidate for telecommunication systems. Design and analysis of different structures were carried out with Ansys HFSS.

Use of electronic evidence by refugees in civil procedure

Purpose. The purpose of the article is to analyze the current legislation that regulates the submission of refugees to court and the study of electronic evidence by courts in civil proceedings, outline the existing problems of using electronic evidence in court proceedings and analysis of court practice of electronic evidence. Methodology. The methodology includes a comprehensive analysis and generalization of existing scientific and theoretical material and the formulation of relevant conclusions. During the research the methods of scientific cognition were used: comparative-legal, logical-semantic, functional, logical-normative. Results. The study found that the use of electronic evidence, on the one hand, has simplified the proof procedure for refugees, but on the other hand, problems remain. Scientific novelty. In the course of the research it was established that for the full use of electronic evidence in Ukraine it is expedient to refine the information and telecommunication systems of courts, to provide courts with appropriate material and technical base, which would allow unhindered research of electronic evidence. Practical significance. The significance of the study is determined by the fact that the scientific results provide a basis for improving the legislation on the use of electronic evidence by refugees in Ukraine.

Identification algorithm for telecommunication systems with uncertain parameters of their vector of state stochastic model

The described method of structure identification of the state vector of a telecommunication system stochastic model is based on a posteriori probability density approximation (APDA) by a system of a posteriori moments. An assumption of possible APDA approximation by a class of Pearson distributions resulted in a closed system of moment equations. Implementation of optimal non-linear stochastic object control techniques helped to solve the problem of structural identification. Introduction of the proposed approach into contemporary telecommunication systems will not impose additional requirements on the calculating equipment, thus making this method well-suited for a wide range of applications.

The concept and essence of electronic transactions in the civil law of Ukraine

This research is devoted to the analysis of the legal regulation of electronic transactions in the civil law of Ukraine, the disclosure of problematic issues related to the practical application of the Law of Ukraine "On Electronic Commerce". Within the framework of this article, a theoretical and applied study of various approaches of scientists was carried out, as well as the position of the legislator regarding the understanding of the concept and essence of an electronic transaction through its comparison with traditional approaches to understanding the concept and essence of a transaction. The analysis of the Law of Ukraine "On Electronic Commerce" was carried out, and it was found that the latter defines the organizational and legal basis for activities in the field of electronic commerce in Ukraine, establishes the procedure for making electronic transactions using information and telecommunication systems and determines the rights and obligations of participants in relations in the field of electronic commerce. To achieve this goal, the author applied methods characteristic of legal science. The study was conducted out using the dialectical method of cognition of legal reality, which provided an opportunity to analyze the essence of electronic transactions as a variety of legal facts affecting the dynamics of legal obligations in the civil law system of Ukraine. Whereas the use of the formal-legal method made it possible to analyze the regulations related to the regulation of electronic transactions, which contributed to the proper disclosure of the research objectives. Based on the study, the authors conclude that electronic transactions, like transactions in general, are a kind of legal facts acting in the form of an act of strong-willed lawful behavior aimed at establishing, changing or terminating civil rights and obligations. It has been established that a characteristic feature of electronic transactions is that they are carried out using information and telecommunication systems. It was determined that a characteristic feature of electronic transactions is interactivity, efficiency and multimedia.

Shared-Aperture 24–28 GHz Waveguide Antenna Array

A compact three-element shared-aperture waveguide antenna array for the 24–28 GHz microwave-frequency band is presented as a proof-of-concept of an array with steerable directional beam suitable for 5G telecommunication systems. The array is intended for use in a microwave photonic link and is sufficiently steerable only with the progressively phased excitation signals of equal magnitudes. The mutual interactions between the array elements are minimized to maintain the properties of the individual elements, even if they are embedded and closely spaced in the array. The proposed concept could be simply extended by adding more elements to further increase the directivity and enhance the steering properties of the array.

Electronic evidence

Relevance of the problem outlined in the article is due to increasing levels of crime in the sphere of illicit trafficking in narcotic drugs, psychotropic substances, their analogues or precursors using information and telecommunication systems. The aim of the article is a comprehensive analysis of the problem of the use of electronic evidence in proving crimes of trafficking in narcotic drugs, psychotropic substances, their analogues or precursors. To achieve the goal were used to theoretical, historical comparative methods and logical analysis; application of dialectical method allowed to reveal the meaning of concepts "electronic evidence The article presents the most common methods of communication in the sale of drugs, psychotropic substances, their analogues or precursors through such means of communication as messengers, social networks, online games, proprietary programs. It is established that the main causes of drug trafficking crimes include: insufficient legal regulation of cyberspace, the lack of geographical boundaries, the spread of information about drugs on the Internet, especially in Darknet), the uncontrolled development of the cryptocurrency market. The definition of electronic proof in the Ukrainian legal system, as well as the forms and features of electronic proof are considered.

Stochastisation of microwave oscillations in microstrip log-periodic antenna-generator with LF noise-like modulation.

Microwave solid-state oscillators of noise-like signals are of the great interest for wireless telecommunication systems, imaging systems and electronic warfare. In the paper, the possibility of power combining in the array of three independent noise-like oscillators is investigated. The noise-like oscillators are based on the microstrip log-periodic antennas which are integrated with field-effect transistors. As an active element, NE350184С field-effect transistor with 13.5 dB gain at 12 GHz is chosen. It was previously shown that single-frequency, multifrequency or noise-like generations are possible in the active antennas. The main factors that affect the generation type are the current in the drain-source circuit of the transistor and the distance between the antenna plane and reflecting screen. It is experimentally shown, that using of the noise-like oscillator arrays makes possible the spectrum and power combining, but the construction is not enough stable and reliable.