Computer Telecommunications Research Articles

Features of the Security System Development of a Computer Telecommunication Network

Features of the Security System Development of a Computer Telecommunication Network

Features of the Security System Development of a Computer Telecommunication Network

Features of the Security System Development of a Computer Telecommunication Network

Optimization of Automatic Control and Measurement for the HEPS Large-Scale High-Power RF Conditioning Test

High power radio frequency (RF) conditioning is a key step for the RF components to gain full performance. In the construction of high energy photon source (HEPS), upgrading Beijing Electron-Positron Collider (BEPCII), preresearch of circular electron positron collider (CEPC), and other projects at Institute of High Energy Physics (IHEP), there will be a lot of RF conditioning tasks within a very tight schedule. To improve the conditioning efficiency, an optimized automatic control has been developed. The automatic control system is developed based on the Experimental Physics and Industrial Control System (EPICS). The control hardware platform adopts a combination of the Micro Telecom Computing Architecture (MTCA) based low-level control and programmable logic controller (PLC) interlocking unit, which integrates a variety of measurements to ensure safe and reliable unattended operations during high-power (up to 160 MW) and high gradient (up to 33 MV/m) testing. The finite state transfer based on multiple event-triggered interrupt processes is used to improve conditioning efficiency. Taking the conditioning of the HEPS 3-m-long acceleration structure as an example, the breakdown rate (BDR) at high power is less than one out of 180 000 pulses. The time consumed for each accelerating structure is reduced by a factor of nearly 2/3. Experiments show that the system realizes the unattended operation of whole process, and improves conditioning efficiency.

Preface

Due to recent pandemic, 2022 5th International Conference on Advanced Algorithms and Control Engineering (ICAACE 2022) was held virtually online during January 20-22, 2022. The decision to hold the virtual conference was made in compliance with many restrictions and regulations that were imposed by countries around the globe. Such restrictions were made to minimize the risk of people contracting or spreading the COVID-19 through physical contact. There were 140 individuals who attended this online conference, represented many countries including Malaysia, India, Iran, and China. ICAACE 2022 is to bring together innovative academics and industrial experts in the field of advanced algorithms and control engineering to a common forum. The primary goal of the conference is to promote research and developmental activities in advanced algorithms and control engineering. And another goal is to promote scientific information interchange between researchers, developers, engineers, students, and practitioners working all around the world. During the conference, the conference model was divided into three sessions, including oral presentations, keynote speeches, and online Q&A discussion. In the first part, some scholars, whose submissions were selected as the excellent papers, were given about 5-10 minutes to perform their oral presentations one by one. Then in the second part, keynote speakers were each allocated 30-45 minutes to hold their speeches. In the second part, we invited two professors as our keynote speakers. Professor Jinming Wen, Jinan University, China. He is mainly engaged in the basic theoretical research and algorithm design of lattice cipher and compressed sensing. And then we had Assoc. Prof. Pavel Loskot, IEEE Senior Member, Zhejiang University-University of Illinois at Urbana-Champaign Institute (ZJUI), China. His current research interest focuses on problems involving statistical signal processing and importing methods from Telecommunication Engineering and Computer Science to other disciplines in order to improve the efficiency and the information power of system modeling and analysis. Their insightful speeches had triggered heated discussion in the third session of the conference. Every participant praised this conference for disseminating useful and insightful knowledge. The proceedings are a compilation of the accepted papers and represent an interesting outcome of the conference. Topics include but are not limited to the following areas: Algorithms and Data Structures, Electrical systems, Machine Learning, Intelligent data analysis and Data Mining, Mathematical and computer modelling, Systems and automation, Process control and other related topics. All the papers have been through rigorous review and process to meet the requirements of international publication standard. We would like to acknowledge all of those who supported ICAACE 2022. The help and contribution of each individual and institution was instrumental in the success of the conference. In particular, we would like to thank the organizing committee for its valuable inputs in shaping the conference program and reviewing the submitted papers. We sincerely hope that the ICAACE 2022 turned out to be a forum for excellent discussions that enabled new ideas to come about, promoting collaborative research. We are sure that the proceedings will serve as an important research source of references and knowledge, which will lead to not only scientific and engineering findings but also new products and technologies. The Committee of ICAACE 2022 Committee member are available in the pdf

Mathematical Model of the Delay in Communication Networks Based on QS with a Time Lag

In the mathematical modeling of modern computer networks, telecommunication networks, traffic flows, logistics and many others, the methods of queuing theory are widely used. In turn, in studies of queuing systems (QS) G/G/1 with arbitrary distribution laws of intervals between adjacent requirements of the incoming flow and their service time, the spectral decomposition method (MSD) of solving the Lindley integral equation is often used. This method is based on the search for zeros and poles of the constructed spectral decomposition in the form of some fractional-rational function using numerical methods to determine the roots of polynomials. In this case, the coefficients of the polynomial in the numerator of the expansion are expressed through the unknown parameters of the distribution laws used to describe the QS. In the case of teletraffic research, usually these unknown parameters of the distribution laws can be determined through the numerical characteristics of the intervals between traffic packets by the method of moments. The purpose of this article is to present a fundamentally new mathematical model of a system formed by two flows with distribution laws shifted to the right. This is possible only for those probability distribution laws whose density functions are Laplace transformable. The main advantages of such systems, let us call them time lag systems, are that they provide less queue latency compared to conventional systems, and that they extend the range of traffic parameters. The article presents the results obtained on the average delay of requests in the queue for a system with exponential and hyper-Erlang distributions, an algorithm for calculating the average delay and the results of computational experiments in the Mathcad package.

New Perspectives in the Development of the Artificial Sport Trainer

The rapid development of computer science and telecommunications has brought new ways and practices to sport training. The artificial sport trainer, founded on computational intelligence algorithms, has gained momentum in the last years. However, artificial sport trainer usually suffers from a lack of automatisation in realization and control phases of the training. In this study, the Digital Twin is proposed as a framework for helping athletes, during realization of training sessions, to make the proper decisions in situations they encounter. The digital twin for artificial sport trainer is based on the cognitive model of humans. This concept has been applied to cycling, where a version of the system on a Raspberry Pi already exists. The results of porting the digital twin on the mentioned platform shows promising potential for its extension to other sport disciplines.

Forms and Means of Information and Communication Support for Students of Mathematics in the Pedagogical Institution of Higher Education

The article is devoted to the forms and means of information and communication support for students of mathematics in the pedagogical institution of higher education. The main purpose of the article is to define and characterize the forms and means of information and communication support for teaching mathematics in a pedagogical institution of higher education. To achieve this goal, the authors used the following research methods: analysis and generalization of scientific and methodological sources, government documents on the research topic for theoretical justification of the problem, modeling, synthesis of data. The results. The introduction to this article presents a theoretical analysis of educational technologies, in particular, highlights the «information technology» and defines the essence of this concept. The authors define the pedagogical goals of the use of information technology, as well as provide a classification of pedagogical software. The article highlights and substantiates computer training programs used in higher education institutions in the study of some disciplines, which by their purpose are divided into control (tests, questionnaires, etc.), reference and information (databases, dictionaries), modeling and electronic textbooks. In the process of analysis, the means of information and communication support for teaching mathematics in a pedagogical institution of higher education are identified: computer training and control programs (electronic textbooks, workshops, test systems, simulators), expert systems, electronic libraries, telecommunications, e-mail, teleconferences) and multimedia systems. Conclusions. The authors proved that spreadsheets and integrated mathematical packages can also be widely used in teaching students of mathematical disciplines. Integrated mathematical packages such as Matlab, MathCad, Maple, Mathematica are singled out and briefly described. It is noted that one of the leading types of ICT is computer telecommunications, in the system of mathematics education the use of the following types of computer telecommunications as teleconferencing, e-mail, electronic bulletin board and other Internet capabilities is quite possible. So, modern MultiMedia tools allow you to create a variety of information environments that increase the level of emotional perception of information, and to develop the ability to implement various forms of independent activities for information processing.

Extremist Crimes Committed Using the Sphere of Telecommunications and Computer Information

To successfully counter extremist and terrorist crime in the virtual space, it is important to implement measures for improving legislation (clarification of extremism features, the introduction of a list of extremist crimes into the law, etc.), as well as measures to improve the training of law enforcement officials, wider involvement of specialists and experts in the investigation of cases, establishing cooperation with providers in order to timely identify extremist and terrorist crimes, a deeper study of the personality of criminals who specialize in committing extremist crimes using the field of telecommunications and computer information. The use of telecommunications and computer information in the commission of extremist crimes indicates a high intellectual level of the criminal, which helps him not only to commit high-tech crimes, but also to hinder the investigation of his actions using the same knowledge and experience. In this regard, the social danger of both the criminal and the offence committed by him increases, which should be taken into account when solving and investigating crimes. In addition, the professionalism of criminals makes increased demands on law enforcement officers investigating crimes of this type, which means that it is necessary to constantly improve their training in the field of computer information and telecommunication technologies. The paper discusses some issues of classification of extremism using computer and telecommunication networks, gives a definition of extremism, and suggests ways to solve problems in the qualification and organization of the investigation of the crimes in question.

CHARACTERISTICS OF DISTANCE EDUCATION

In the XXI century, the role of information technologies in the life of society is growing every day. The informatization of society leads to qualitative changes in the field of education. The world requires more and more mobility from a person, therefore, in addition to traditional forms of education, distance learning firmly occupies its position. Distance education acts as one of the social mechanisms that contribute to the adaptation of society to new living conditions. Modern computer telecommunications are able to provide knowledge transfer and access to a variety of sources containing educational information on an equal basis, and sometimes much more effectively than traditional means of teaching.

Micro telecom computing architecture.4-based beam position monitor electronics design for storage ring of Hefei advanced light facility.

The Hefei Advanced Light Facility (HALF) is a fourth-generation vacuum ultraviolet and x-ray diffraction limit synchrotron radiation (DLSR) light source now under preliminary research. To achieve ultralow beam emittance and small beam size, the orbit of the beam in the DLSR storage ring should meet the stability requirement at submicrometer scale. The beam position monitor (BPM) electronics measures the orbit and is hence an essential part of the beam orbit control system. In this article, we designa BPM electronics based on the MicroTCA.4 (Micro Telecom Computing Architecture) standards platform, which consists of a MicroTCA.4 module (including a chassis, a power supply, and a digital board), a customized RF front end module, and a frequency synthesizer. In-phase and quadrature sampling and digital signal processing algorithms are implemented to obtain turn-by-turn data, fast acquisition data at a 10 kHz rate, and slow acquisition data at a 10Hz rate. To evaluate the performance and function of BPM electronics, we conducted offline tests in the laboratory and beam tests based on the storage ring of Hefei Light Source II (HLS II), a light source similar to the HALF as an alternative. Test results indicate that the performance of MicroTCA.4-based BPM electronics can meet the requirements of the HALF storage ring.

The digital generation: New educational needs

The article discusses the pedagogical feasibility of using innovative intellectual immersive technologies in the educational process, corresponding to the pace and needs of digital society development. The features of teaching the digital generation of students are highlighted. The specificity of educational and cognitive activity and the peculiarities of the development of cognitive interest in future IT-specialists in the process of studying specialized disciplines are determined. It is proposed to consider a constructivist approach to learning, which implies the creation of a modal, functional, communicative learning environment, which, in turn, contributes to the self-construction and development of student’ own cognitive trajectory. Arguments are given in favor of the use of Augmented Reality (AR) technology in teaching “digital natives” studying in the IT-field (direction of training 09.03.01 “Informatics and Computer Engineering”). Empirical data are presented that prove the positive influence of educational AR-content on the level of student engagement. The coefficient of student engagement is a quantitative characteristic to assess the state of interest in the educational material in the discipline “Computer Networks and Telecommunications”. The student engagement rate was established by collecting subjective data, which are not directly observable, and are revealed in the course of students’ self-assessment of their learning activities.

USE OF MODERN INFORMATION TECHNOLOGIES IN THE DISTANCE LEARNING

Currently, the number of applicants who prefer distance education is growing every year. This form of learning reflects all the inherent components of the learning process such as goals, content, methods, organizational forms and means of learning. The widespread demands for this form of education and the modern realities caused by the COVID-19 pandemic have created the need the development and implementation of distance learning technologies.
 Ensuring educational dialogue in distance learning is done with the help of telecommunication technologies. The main technologies most widely used in this form of education include a variety of video lectures, electronic multimedia textbooks, computer training and testing systems, and other.
 In this article the new information technologies used in the process of distance learning discussed in detail. Although we discussed advantages and disadvantages of the new information technologies. In addition, distance learning using Internet technologies is gaining more and more popularity. The Internet has a number of specific features (openness, accessibility, variability, interactivity) that must be considered when designing, creating and conducting distance learning courses.
 The main strengths of this form of learning, in our opinion, are flexibility, modularity, accessibility, cost-effectiveness, mobility and manufacturability.
 Weaknesses include the lack of direct face-to-face communication, the mandatory availability of a personal computer and access to Internet resources, the problem of user authentication when testing knowledge, the high complexity of developing distance learning courses and others.
 Also considered are the main models the organization of distance learning, which are used in the leading universities in the world. These include: consortium, franchising, validation, distance audiences, projects, and open learning.
 Thus, despite the weaknesses, modern computer telecommunications is able to provide knowledge transfer and access to various educational information equally, and sometimes much more effectively than traditional teaching aids. A variety of educational technologies can not only ensure the active involvement of students in the learning process, but also allow you to manage this process, unlike most traditional learning environments.

APPLICATION OF THE PROFESSIONALLY ORIENTED TASKS IN LEARNING INFORMATION TECHNOLOGIES AT HIGHER EDUCATION ESTABLISHMENTS

The most often used information technologies in the future professional activity of students of pedagogical universities are computer technologies of text, tabular and graphic data processing, work with multimedia data, as well as computer telecommunications. Mastering the skills of working with these technologies involves the study of office suites that allow you to perform data processing work. The use of information and communication technologies provides ample opportunities for the organization of educational and cognitive activities of students. Therefore, it is important to teach students the effective use of information and communication technologies in their professional activities. As far as much attention is paid not only to the knowledge that graduates must master, but also the formation of their professional skills, the most modern requirements for higher education meets a new type of educational tasks – professionally-oriented tasks.
 The article clarifies the main aspects of the introduction of professionally-oriented tasks in the educational process of pedagogical higher educational institutions. New possibilities and ways of using a package of office programs in the work of a teacher have been investigated. The professionally-oriented tasks have been applied in creating an educational and methodological complex for students in the study of Microsoft Office 2010. An example of step-by-step and sequential system of tasks for obtaining a certain outcome result taking into account the professional orientation of students has been given. New approaches to the introduction of professionally-oriented tasks in teaching the course “Modern information technologies in the educational process” have been developed. They will allow students to apply skillfully the acquired knowledge and skills to work with office suite programs in their studies, flexibly adapt to situations that arise in the professional activities of teachers, independently acquire the necessary knowledge, effectively use them to solve various problems in practice. A set of interrelated methods was used to solve the tasks included in the study: theoretical: analysis and generalization of scientific and pedagogical literature, modeling of the educational process; empirical: observation of the educational process at school during pedagogical practice and at the university. The introduction of information technology into the educational process of higher education allows teachers to qualitatively change the content, methods and organizational forms of learning.

Internet fraud: technologies of performance, ways of counteraction and prevention

The article proves that the separation of technologies for committing fraud on the Internet allows you to determine the causal complexes. As a result, it is possible to effectively influence the prevention and counteraction of the corresponding type of crime. The author concludes that it is necessary to introduce into the practice of law enforcement and other government agencies effective tools for preventing and combating Internet fraud. He sees such a tool as outreach activities and modes of action that will block the determinants of criminal behavior in cyberspace. In order to concretize the specified means of prevention, it also deepens the theoretical basis regarding the system for preventing Internet fraud. So, the author comes to the conclusion that counteraction is a system of measures and methods of activity not only of law enforcement agencies, but also of other state and non-state bodies, while among these measures there are measures to prevent certain types of crimes. The article indicates that in the process of implementing a certain type of cybercrimes by criminals, they talk about the technologies of criminal activity as complexes of interrelated crimes, united by a single criminal purpose. For the commission of Internet fraud in the technology of criminal activity, there are typically ways of committing crimes in the use of computers, systems and computer networks and telecommunication networks (provided for in Section XVI of the Criminal Code of Ukraine) and Art. 200 of the Criminal Code of Ukraine. As a result of the analysis of the materials of the forensic practice of investigating fraud on the Internet, two main technologies have been identified: 1) the seizure of funds using phishing sites (the methods of reporting false information from the victim and its content have been updated) 2) the seizure of funds using a bank payment card and / or ATM (the variability of the method of manipulating information has been updated)

Waldschmidt constant of certain sets of points with 3 supporting lines in projective plane

The paper shows values of the initial degree and Waldschmidt constant for some special cases including severalcases of ten points with three supporting lines in projective plane. These constants represent the complexity of optimal solutions in repeated path problems that have many applications in computer science, informatics theory and telecommunications.

Cyber crime, computer crime or cyber offense? The analysis of the features of a terminology application

Today cybercrime and computer terrorism are identified as one of the threats to Ukraine’s national security in the information sphere. Cybersecurity measures include achieving and maintaining security features in the resources of an institution or users, aimed at preventing relevant cyber threats. Cybercrime is a set of criminal offenses committed in cyberspace by computer systems or by using computer networks and other means of access to cyberspace, within computer systems or networks, as well as against computer systems, computer networks and computer data, has been widely developed. The paper considers such terms as «computer crime», «information crime», «crime in the field of computer information», «crimes in the field of information technology». Scientific works of domestic and foreign researchers on the issues of countering cybercrime are analyzed. The connection of the concept of «cybersecurity» with the terms «cybercrime», «computer crime» and «cybercrime» the concepts of «cybercrime» was given. The difference in the interpretation of the concepts «cybersecurity» and «information security» was considered. The definitions of «cybercrime», «computer crime» and «cyber offense» were given for comparison. Their main features were considered. The concept of «computer victimhood» and its components were considered. With the introduction of the institute of criminal offenses in the national criminal law, the terms «cybercrime» and «computer crime» should lose their relevance, as evidenced by the change of title of Chapter XVI of the Criminal Code of Ukraine to «Criminal offenses in the use of electronic computing machines (computers), systems and computer networks and telecommunications networks». Therefore, instead, we can recommend the use of the term «cyber offense», which we propose to understand as «socially dangerous criminal act in cyberspace and/or using it, liability for which is provided by the law of Ukraine on criminal liability and/or which is recognized as a criminal offense by international treaties of Ukraine, and cybercrime is a set of cyber offences». It is clear that this will require the introduction of appropriate terminological changes in the Law of Ukraine «On the Basic Principles of Cyber Security of Ukraine» and other regulations.

ЗАСТОСУВАННЯ ІКТ У ПРОЦЕСІ ПРОФЕСІЙНОГО РОЗВИТКУ ВЧИТЕЛІВ У ЗАКЛАДАХ ВИЩОЇ ТА ПІСЛЯДИПЛОМНОЇ ПЕДАГОГІЧНОЇ ОСВІТИ

The article is based on the analysis of scientific and pedagogical literature determines that the main properties of educational innovations are manifested in systematic changes associated with the transition from the lower quality to higher quality in the organization, monitoring, quality management systems of the educational and scientific process, as well as specific features of mental activity, which is the result of new socio-economic, psychological social processes in the activities and thinking of all its participants. It is noted that the preparation of future teachers for innovation is a long step-by-step process of formation of his personality. It is stated that each institution, as a component of the education system, during the organization and direct implementation of the educational and scientific cognitive process should use the capabilities and capacities of ICT at a sufficient level to solve educational problems – to carry out e-learning, which in turn requires the creation and constant development of informatization of the methodical system of institutions of higher and postgraduate pedagogical education. It is established that the modern system of higher and postgraduate pedagogical education has significant experience in the use of ICT in the process of professional development of teachers. Among them, the most recognized and convenient are hypertext technology, the Internet (e-mail, TV-video conferencing, chat, etc.), «virtual reality» and multimedia technology. It is noted that the use of modern information telecommunication networks has significantly changed the communicative environment, opened new ways to search for information, expanded the range of Internet use in various spheres of life. It has been determined that in recent years in different countries special attention has been paid to the possibilities of using computer telecommunication technologies in the organization of education. They provide effective feedback, which involves both the organization of the study material and communication with the teacher when the need arises. Such learning is called distance learning. The most important for the educational process services provided by the Internet technology are described: e-mail, TV, and video conferencing, «virtual reality». Keywords: professional development of teachers, postgraduate pedagogical education, continuing education.

INNOVATIVE PEDAGOGICAL METHODS AND COMPUTER TELECOMMUNICATIONS IN DISTANCE EDUCATION

Formulation of the problem. The problems of pedagogical system, innovative methods of education and training of specialists, use of new teaching methods based on computer information technologies and distance learning platforms, use of innovative methods and distance learning platforms in the implementation of online education are considered. According to statistical research, the effectiveness of the traditional pedagogical system is no more than sixty percent. Innovative methods of training specialists in education are the use of new methods that qualitatively increase the effectiveness of ways and means of presenting information compared to the traditional system, learning to find the necessary information independently, checking its adequacy and learnability. Such innovations and novelties can be the use of computer technology and the Internet, and, especially now, of distance learning and communication technology.
 Materials and methods. The methods include content analysis, synthesis, comparison, description of the obtained research results, generalization.
 Results. The existing solutions for remote learning (distance learning platforms), using computer telecommunications, were analyzed: Meet, iSpring, WebTutor, GetCourse, Google Classroom, Microsoft Teams, Moodle, Blackboard Learning System, LMS «Prometheus», The Virtual Laboratory, VirtuLab and ZILLION, video communication and conference programs: Zoom, YouTube, Viber, Skype and others. All these platforms have their own characteristics and features, and their use lies in the possibilities of application in educational institutions and personal preferences of teachers and students. All distance learning platforms are web-based and therefore the requirements for client computers are minimal. The analysis of the remote learning technologies used allows us to determine the basic necessary and sufficient set of software tools that need to be applied for the full operation of the platform in the application of distance learning technologies. Microsoft Teams is suggested as a possible platform for distance learning.
 Conclusion. Application of remote technologies and software in creation of hardware-distance scientific-educational systems will lead to low cost of software product both for developers and customers (reduction of expenses on additional software) and will provide attraction of a wide range of users due to low system requirements and possibility of use in mobile devices. And usage of Microsoft Teams distance learning platform allows implementing a wide range of capabilities, which this platform has: video communication, different types of communication, provision of all kinds of materials, demonstration of any participant's screen during broadcast for the whole group, list of participants and attendance control, polling, possibility to record events and their further viewing, administration of all processes from the learning side, etc.

Implementation of Computer Telecommunication Network Management and Centralized Monitoring System Based on Genetic Algorithm

With the continuous strengthening of competition in China’s telecommunications market, the technology and management of the telecommunications industry have made great strides forward. If the system application, server or network equipment fails and there is no suitable solution, it will have a great impact on the whole business activities of the enterprise. Modern network is no longer simply providing an end-to-end service as reliable as possible, but is committed to providing users with high-quality and reliable communication service quality to meet the bandwidth delay requirements of various applications. The networking of monitoring system is one of the main goals of monitoring system development, which develops with the wide application of information technology represented by Internet. In order to improve the level of operation and maintenance, customer satisfaction and market competitiveness, enterprises undoubtedly need to speed up the construction of integrated network management system. This paper discusses the method of combining genetic algorithm and computer network technology to realize computer telecommunication network management and centralized monitoring, which is of great significance to improve the level of field maintenance and management.

Peculiarities of teaching a foreign language in the conditions of distance learning

The purpose of the article is to analyze the features of teaching foreign languages in higher education in the context of distance learning. To achieve this goal, the article uses the methods of theoretical analysis, critical analysis of scientific resources and scientific observation of the educational process. A comprehensive description of the application of these methods through the prism of foreign languages is the scientific novelty of the work. In the era of continuous informatization of society and education, in particular the use of modern computer technology, the Internet, multimedia and mobile communications in the educational process of higher education, has become a necessary condition for training and education of competent professionals and their future adaptation to working conditions. Therefore, educational institutions try to organize the educational process so as to provide students with full access to educational materials, using paper, electronic and multimedia media and access to Internet resources. In addition, the use of computer technology and the Internet, distance learning technologies significantly expands the range of potential students and allows to involve in education (including language) a wider range of students from abroad. Conclusions. Distance learning through computer telecommunication networks has broad prospects in the study of foreign languages. First of all, this advantage, in comparison, for example, with video and audio seminars, lies in the availability of operational feedback from teachers and students, with numerous training programs. Distance learning of foreign languages is a fairly effective form of learning a foreign language, aimed at the development of cognitive abilities, oral speech, foreign language thinking and full mastery of written foreign language communication.