scholarly journals Methods for Formation of Telecommunication Network States Sets for Different Measures of Connectivity

2020 ◽  
Vol 19 (3) ◽  
pp. 644-673 ◽  
Author(s):  
Aleksandr Batenkov ◽  
Kirill Batenkov ◽  
Aleksandr Fokin
Keyword(s):  
Integrated Circuits ◽  
Spanning Trees ◽  
Telecommunication Network ◽  
Communication Line ◽  
Functional Relationships ◽  
Telecommunications Network ◽  
Connectivity Property ◽  
Common Concept ◽  
Network States ◽  
The Stability

Reliability, survivability, and stability analysis tasks are typical not only for telecommunications, but also for systems whose components are subject to one or more types of failures, such as transport, power, mechanical systems, integrated circuits, and even software. The logical approach involves the decomposition of the system into a number of small functional elements, and within telecommunications networks they are usually separate network devices (switches, routers, terminals, etc.), as well as communication lines between them (copper-core, fiber-optic, coaxial cables, wireless media, and other transmission media). Functional relationships also define logical relationships between the failures of individual elements and the failure of the network as a whole. The assumption is also used that device failures are relatively less likely than communication line failures, which implies using the assumption of absolute stability (reliability, survivability) of these devices. Model of a telecommunication network in the form of the generalized model of Erdos–Renyi is presented. In the context of the stability of the telecommunications network, the analyzed property is understood as the connectivity of the network in one form or another. Based on the concept of stochastic connectivity of a network, as the correspondence of a random graph of the connectivity property between a given set of vertices, three connectivity measures are traditionally distinguished: two-pole, multi-pole, and all-pole. The procedures for forming an arbitrary structure of sets of paths and trees for networks are presented, as well as their generalization of multipolar trees. It is noted that multipolar trees are the most common concept of relatively simple chains and spanning trees. Solving such problems will allow us to proceed to calculating the probability of connectivity of graphs for various connectivity measures.

Critical Infrastructure Management for Telecommunication Networks

2014 ◽  
Vol 5 (1) ◽  
pp. 1-13
Author(s):  
Haibo Wang ◽  
Bahram Alidaee ◽  
Wei Wang ◽  
Wei Ning
Keyword(s):  
Ad Hoc ◽  
Critical Infrastructure ◽  
Telecommunication Network ◽  
Telecommunication Networks ◽  
Critical Infrastructures ◽  
Infrastructure Management ◽  
Detection Model ◽  
Proposed Model ◽  
The Stability ◽  
Supporting Structures

Telecommunication network infrastructures both stationary and ad hoc, play an important role in maintaining the stability of society worldwide. The protection of these critical infrastructures and their supporting structures become highly challenged due to its complexity. The understanding of interdependency of these infrastructures is the essential step to protect these infrastructures from destruction and attacks. This paper presents a critical infrastructure detection model to discover the interdependency based on the theories from social networks and new telecommunication pathways while this study transforms social theory into computational constructions. The procedure and solution of protecting critical infrastructures are discussed and computational results from the proposed model are presented.

DETERMINATION OF STRUCTURES IN CHIPS THAT ARE SENSITIVE TO COSMIC PARTICLES

2020 ◽  
Vol 12 (4) ◽  
pp. 73-77
Author(s):  
Andrey Savchenko ◽  
A. Kulay ◽  
I. Strukov ◽  
K. Chubur ◽  
Sergey Grechanyy
Keyword(s):  
Energy Consumption ◽  
Integrated Circuits ◽  
Scaling Effects ◽  
The Stability ◽  
Main Effects

The article considers the influence of scaling effects on the stability of integrated circuits (IC) under the influence of cosmic particles. There are two directions of scaling: reduction of topological dimensions of IC elements and optimization of energy consumption due to design and technological solutions. The paper analyzes the main effects (SEU, SEL, SEHE, SEGR and MBU) on the sensitivity of the IC to single events (SE)

scholarly journals Choice of the Optimal Solution for Introducing vIMS Technology in the Infrastructure of the Telecommunication Network

2020 ◽  
pp. 30-33
Author(s):  
Andrey Andreevich Alekseenko ◽  
Yuri Nikolaevich Belov
Keyword(s):  
Technological Progress ◽  
Driving Forces ◽  
Telecommunication Network ◽  
Optimal Solution ◽  
Ip Multimedia Subsystem ◽  
Literary Sources ◽  
Telecommunications Network ◽  
Network Equipment ◽  
Main Ideas ◽  
Functional Components

The article focuses on the main driving forces that force telecom operators to introduce the latest achievements of scientific and technological progress into their networks and provide subscribers with new opportunities and advantages. One of the latest advances in the world of telecommunications is the IP Multimedia Subsystem (IMS). Based on literary sources, a review of the IMS concept is carried out, the main ideas embodied by it are highlighted. The paper provides a solution for the implementation of virtual IMS technology in the telecommunications network infrastructure, defines the main network equipment on which the functional components of the vIMS network are implemented.

scholarly journals Sixty Earth-Day Test of a Prototype Pt/HTCC Alumina Package in a Simulated Venus Environment

2019 ◽  
Vol 16 (2) ◽  
pp. 78-83 ◽  
Author(s):  
Liangyu Chen ◽  
Philip G. Neudeck ◽  
Roger D. Meredith ◽  
Dorothy Lukco ◽  
David J. Spry ◽  
...  
Keyword(s):  
High Temperature ◽  
Integrated Circuits ◽  
Extreme Environment ◽  
Electrical Performance ◽  
Harsh Environment ◽  
Three Phase ◽  
Testing Environments ◽  
Earth Day ◽  
The Stability ◽  
Surface Environment

Abstract This article presents experimental results of a prototype high-temperature cofired ceramic (HTCC) package with Au/Pt metallization in a three-phase harsh environment test that culminated with a 60-d demonstration in a simulated Venus surface environment consisting of a 465°C corrosive atmosphere at 90 bar pressure. The prototype package is based on a previously developed and reported HTCC package successfully tested with multiple analog and digital silicon carbide high-temperature semiconductor integrated circuits in 500°C Earth air ambient for more than 10,000 hours, and short-term tested at temperatures above 800°C. The three-phase harsh environment test started with 48 h in 465°C Earth air, followed by 48 h in 465°C nitrogen at 90 bar pressure and 1,400 h in a simulated Venus surface environment of 465°C corrosive atmosphere at 90 bar. In addition to in situ electrical tests in a three-phase harsh environment and posttest electrical diagnosis, initial posttest analysis of the package materials and surfaces was performed to assess the stability of the packaging materials in the testing environments, as well as the surface conditions after the test. The test in the simulated Venus environment was implemented in the NASA Glenn Extreme Environment Rig. The results of this study suggest that an effective encapsulation of areas of surface metallization and vicinities may help improve the long-term electrical performance of an HTCC alumina packaging system in a Venus environment.

scholarly journals TO THE QUESTION OF LEGAL CONDITIONS PLACE IN THE SYSTEM OF LEGAL FACTS

2020 ◽  
Vol 24 (1) ◽  
pp. 25-45
Author(s):  
Elena Yu. Tsukanova
Keyword(s):  
Social Relations ◽  
Legal Status ◽  
Real Life ◽  
Social Situation ◽  
Research Process ◽  
Physical Reality ◽  
Specific Situation ◽  
Functional Relationships ◽  
Long Time ◽  
The Stability

The article is devoted to the problems of the formation and positioning of the legal status category in legal science. The relevance of this phenomenon in law is due to the lack of its unambiguous perception, which does not allow to fully determine its place and purpose in the theory of legal facts. The purpose of this article is to determine the philosophical and dialectical basis for the inclusion of this concept in the scientific categorical apparatus of jurisprudence. This will allow with sufficient certainty to identify its main characteristics, place in the classification of legal facts, as well as functional relationships with other elements of the legal-factual system. The methodological basis of the article was made by modern achievements of the theory of knowledge. In the research process, theoretical, general philosophical (dialectic, analysis, synthesis, deduction, systemic method,), as well as traditional legal methods (formal-logical, normative-dogmatic and others) were used. In the process of research, based on the ratio of the dialectic categories of movement and rest, the conclusion was formulated that physical reality is a series of static and dynamic situations. Static circumstances characterizing the stability and sustainability of a phenomenon or object are states. The variability of social relations is due to dynamic circumstances, which serve as the basis for a change of state. This approach allowed us to formulate the conclusion that states are natural elements of physical being. They can be qualified as real life circumstances and, provided that the rule of law associates a certain legal consequence with them, they should be recognized as legal facts. An analysis of the place of the state in the system of legal facts allowed us to conclude that the length of time cannot be considered as qualifying it. States are characterized by length in time, and it is precisely the “fluidity” of the phenomenon that matters for a specific situation. When a certain process takes a long time, but as applied to the social situation, it matters as a single whole, then it should be considered as an instantaneous fact.

Nature-Inspired Informatics for Telecommunication Network Design

2010 ◽  
pp. 323-371 ◽  
Author(s):  
Sergio Nesmachnow ◽  
Héctor Cancela ◽  
Enrique Alba
Keyword(s):  
Network Design ◽  
Social Life ◽  
Spanning Trees ◽  
Optimization Problems ◽  
Telecommunication Network ◽  
Access Network ◽  
Planning Horizon ◽  
Optimization Techniques ◽  
Significant Research ◽  
Local Access

The speedy pace of change in telecommunications and its ubiquitous presence have drastically altered the way people interact, impacting production, government, and social life. The infrastructure for providing telecommunication services must be continuously renewed, as innovative technologies emerge and drive changes by offering to bring new services to the end users. In this context, the problem of efficiently designing the underlying networks in order to satisfy different requirements while at the same time keeping the capital and operative expenditures bounded is of ever growing importance and actuality. Network design problems have many variations, depending on the characteristics of the technologies to be employed, as well as on the simplifying hypothesis that can be applied on each particular context, and on the planning horizon. Nevertheless, in most cases they are extremely complex problems, for which exact solutions cannot be found in practice. Nature-inspired optimization techniques (belonging to the metaheuristic computational methods) are important tools in these cases, as they are able to achieve good quality solutions in reasonable computational times. The objective of this chapter is to present a systematic review of nature-inspired techniques employed to solve optimization problems related to telecommunication network design. The review is aimed at providing an insight of different approaches in the area, in particular covering four main classes of applications: minimum spanning trees, reliable networks, local access network design and backbone location, and cellular and wireless network design. A large proportion of the papers deal with single objective models, but there is also a growing number of works that study multi-objective problems, which search for solutions that perform well in a number of different criteria. While genetic algorithms and other evolutionary algorithms appear most frequently, there is also significant research on other methods, such as ant colony optimization, particle swarm optimization, and other nature-inspired techniques.

Nature-Inspired Informatics for Telecommunication Network Design

2010 ◽  
pp. 302-350
Author(s):  
Sergio Nesmachnow ◽  
Héctor Cancela ◽  
Enrique Alba
Keyword(s):  
Network Design ◽  
Social Life ◽  
Spanning Trees ◽  
Optimization Problems ◽  
Telecommunication Network ◽  
Access Network ◽  
Planning Horizon ◽  
Optimization Techniques ◽  
Significant Research ◽  
Local Access

The speedy pace of change in telecommunications and its ubiquitous presence have drastically altered the way people interact, impacting production, government, and social life. The infrastructure for providing telecommunication services must be continuously renewed, as innovative technologies emerge and drive changes by offering to bring new services to the end users. In this context, the problem of efficiently designing the underlying networks in order to satisfy different requirements while at the same time keeping the capital and operative expenditures bounded is of ever growing importance and actuality. Network design problems have many variations, depending on the characteristics of the technologies to be employed, as well as on the simplifying hypothesis that can be applied on each particular context, and on the planning horizon. Nevertheless, in most cases they are extremely complex problems, for which exact solutions cannot be found in practice. Nature-inspired optimization techniques (belonging to the metaheuristic computational methods) are important tools in these cases, as they are able to achieve good quality solutions in reasonable computational times. The objective of this chapter is to present a systematic review of nature-inspired techniques employed to solve optimization problems related to telecommunication network design. The review is aimed at providing an insight of different approaches in the area, in particular covering four main classes of applications: minimum spanning trees, reliable networks, local access network design and backbone location, and cellular and wireless network design. A large proportion of the papers deal with single objective models, but there is also a growing number of works that study multi-objective problems, which search for solutions that perform well in a number of different criteria. While genetic algorithms and other evolutionary algorithms appear most frequently, there is also significant research on other methods, such as ant colony optimization, particle swarm optimization, and other nature-inspired techniques.

METHODOLOGY FOR SUBSTANTIATING THE RATIONAL ROUTE OF INFORMATION TRANSMISSION IN THE INFORMATION AND TELECOMMUNICATION NETWORK IN THE CONDITIONS OF THE COMPLEX IMPACT OF THE ENEMY

2020 ◽  
Author(s):  
С.А. БАГРЕЦОВ ◽  
Н.Б. АЧКАСОВ ◽  
О.С. ЛАУТА ◽  
Д.Ю. ВАСЮКОВ
Keyword(s):  
Information Transmission ◽  
Shortest Path ◽  
Transfer Process ◽  
Data Exchange ◽  
Data Transfer ◽  
Telecommunication Network ◽  
Quality Of Information ◽  
Transfer Path ◽  
The Stability

Представлены подходы к повышению устойчивости функционирования информационно-телекоммуникационной сети, которые способствуют оптимизации процесса передачи данных среди обменников информации за счет повышения быстродействия и нахождения оптимального пути передачи данных. Отмечается, что сокращение времени обмена информацией между абонентами будет происходит по наиболее короткому пути и это должно существенно повлиять на качество информации,ее важность и необходимость при ведении боевых действий в условиях радиоэлектронного противодействия противника. Various approaches to improving the stability of telecommunications networks, which lead to optimizing the data transfer process by increasing the speed and finding the most optimal data transfer path, are presented. It is noted that the reduction of the data exchange time between subscribers will occur along the shortest path, which will significantly affect the quality of information, its importance, and the need for conducting combat operations in the condition of electronic counteraction of the enemy.

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