scholarly journals Cooperative Problem Solving in Telecommunication Network

2013 ◽  
Vol 4 (3) ◽  
pp. 388-392
Author(s):  
Shanu K Rakesh ◽  
Bharat Choudhary ◽  
Rachna Sandhu
Keyword(s):  
Communication Network ◽  
Problem Solving ◽  
Distributed Control ◽  
Communication Networks ◽  
Foraging Behaviour ◽  
Telecommunication Network ◽  
Telecommunication Networks ◽  
Control Problems ◽  
Engineering Systems ◽  
Biologically Inspired

Swarm intelligence, as demonstrated by natural biological swarms, has numerous powerful properties desirable in many engineering systems, such as telecommunication. Communication network management is becoming increasingly difficult  due to the increasing size, rapidly changing topology, and complexity of communication networks. This paper describes  how biologically-inspired agents can be used to solve control problems in telecommunications. These agents, inspired by the foraging behaviour of ants, exhibit the desirable characteristics of simplicity of action and interaction. The colle ction of agents, or swarm system, deals only with local knowledge and exhibits a form of distributed control with agent communication effected through the environment. In this paper we explore the application of ant-like agents to the problem of routing in telecommunication networks.

Peculiarities of construction of clock network synchronization systems for distributed communication networks

2021 ◽  
Vol 1 ◽  
pp. 29-40
Author(s):  
S.V. Malygin ◽  
◽  
M.L. Schwartz ◽  
Keyword(s):  
Communication Networks ◽  
High Speed ◽  
Telecommunication Network ◽  
Clock Synchronization ◽  
Telecommunication Networks ◽  
Reference Frequency ◽  
Channel Switching ◽  
Network Synchronization ◽  
Synchronization System ◽  
Distributed Communication

Modern high-speed telecommunication networks with time division multiplexing (TDM) based on nx64kBit/s channel switching cannot function without a high-quality network synchronization system, which is designed to ensure the reliability and stability of the formation, switching and processing of information in digital channels. The clock synchronization system is based on the transmission of the reference frequency from the primary clock to all digital equipment of the telecommunication network through the high-speed streams of transmission systems. However, in the case of distributed communication networks, the integrity of the clock synchronization system is violated, and there is a need to develop special technical solutions to ensure the provision of frequencies for all remote network elements. This article is devoted to an overview of such solutions.

scholarly journals Monitoring optimization of telecommunication networks for generation of reserve capacity in system

2021 ◽  
Vol 34 (02) ◽  
pp. 993-1007
Author(s):  
Oleg Jakovlevich Kravets ◽  
Elena Ivanovna Danilina ◽  
Iana Ivanovna Malikova ◽  
Dmitry Vladimirovich Gorelov
Keyword(s):  
Communication Networks ◽  
Telecommunication Network ◽  
Telecommunication Networks ◽  
System Structure ◽  
Measuring System ◽  
Reserve Capacity ◽  
Main Concept ◽  
Optimization Task ◽  
System Solution ◽  
Selection Of

This article discusses an approach to monitoring optimization in telecommunication networks with packet routing. Mathematical model of data networking with accounting for monitoring traffic structure is described, optimization task is determined. Main attention is paid to model development on the basis of queueing theory in order to generation of reserve capacity in system. The main concept is that comparatively simple structure of monitoring network is imposed on physical structure of telecommunication network. The modeling is aimed at selection of optimum parameters of monitoring system, solution techniques for similar task are proposed. The obtained optimization task is sufficiently complicated, subsequent attempts should be aimed at searching for conditions which would enable introduction of some constraints in order to simplify its solution without noticeable loss of the model adequacy. This is especially important for asynchronous task of monitoring, it should be based on selection of the most acceptable type of objective function (linear or quadratic). Management system structure of terminal equipment monitoring has been developed for railway sector on the basis of SNMP V3. The system would permit to improve confidence level of data received from measuring system about electrical parameters of route cables, thus decreasing human errors upon classification of emergency situations occurring in communication networks.

scholarly journals METHODS OF IDENTIFICATION AND COMPREHENSIVE DIAGNOSIS OF TELECOMMUNICATION SYSTEMS

2020 ◽  
pp. 58-65
Author(s):  
N.M. Yakymchuk ◽  
A.I. Toroshanko
Keyword(s):  
Communication Networks ◽  
Telecommunication Network ◽  
Control Object ◽  
Network Control ◽  
Telecommunication Networks ◽  
Network Node ◽  
Control Information ◽  
Regular Control ◽  
Control Of Parameters ◽  
And Control

The article formulates the main tasks of management of information networks and telecommunications services in terms of ensuring their reliable operation. The telecommunication network is considered as a complex system consisting of many components, each of which has its own characteristics of operation during operation. The main functions of the telecommunication network control system are determined: fault detection and network status diagnostics, network device administration, forecasting and elimination of congestion and other possible deviations in network functioning, ensuring coordinated interaction between different types of control systems for providing telecommunication services with specified quality. Methods of analysis and management of networks are essentially a kind of identification methods, i.e. the current assessment of the parameters and condition of complex technical systems. There is a close relationship between identification and diagnostic tasks. The methods for solving these problems largely depend on the class to which the identification object can be assigned. Computer and telecommunication networks belong to the class of distributed systems with delays in signal and control information. Methods of retrospective identification are used to analyze the state of such systems. The influence of delays of signal and control information on the efficiency of search and determination of places of failures, overloads and emergency modes in communication networks is investigated. The results of computer simulation are given. The approach based on regular control of parameters and condition of network nodes taking into account delays of receipt of information on parameters and a condition of a concrete network node and delays of the control information necessary for adjustment of parameters of a network node as control object has found further development.

TELECOMMUNICATION NETWORKS AS A BASE FOR BRIDGING THE DIGITAL DIVIDE BETWEEN RUSSIAN FEDERATION REGIONS

2021 ◽  
Author(s):  
Н.А. ЧИСТОВА ◽  
А.С. БОРОДИН ◽  
А.Е. КУЧЕРЯВЫЙ
Keyword(s):  
Digital Divide ◽  
Communication Networks ◽  
Russian Federation ◽  
Educational Process ◽  
Telecommunication Networks ◽  
Gross Regional Product ◽  
Planning And Design ◽  
The Russian Federation ◽  
Regional Product ◽  
The Relationship

Статья посвящена анализу возможностей сетей связи для сокращения цифрового разрыва между регионами Российской Федерации. Основным результатом статьи является установление взаимосвязи валового регионального продукта и доли занятых в сфере информатизации и связи в общем числе занятых во всех отраслях. Результаты статьи могут быть использованы заинтересованными министерствами и ведомствами при реализации программы цифровой экономики, научными и проектными организациями при планировании и проектировании сетей связи, а также университетами в учебном процессе. The article is devoted to the analysis of the capabilities of telecommunication networks with ultralow latency to reduce the digital divide between the regions of the Russian Federation. The main result of the article is to establish the relationship between the gross regional product and the share of people employed in the field of informatization and communications in the total number of people employed in all industries. The results of the article can be used by interested ministries and departments in the implementation of the digital economy program, scientific and design organizations in the planning and design of communication networks, as well as by universities in the educational process.

THE METHOD OF ESTIMATION FRACTAL DIMENSION OF THE TELECOMMUNICATION NETWORK

2021 ◽  
Author(s):  
Ф.Х. НАХЛИ ◽  
А.И. ПАРАМОНОВ
Keyword(s):  
Fractal Dimension ◽  
Comparative Analysis ◽  
Telecommunication Network ◽  
Shortest Paths ◽  
Network Connectivity ◽  
Telecommunication Networks ◽  
New Method ◽  
Topological Properties

Анализируется фрактальная размерность (ФР) сети связи и ее использование для исследования и планирования сетей связи. Рассматривается применение метода «выращивания кластера» для оценки ФР и предлагается новый метод определения ФР сети, основанный на оценивании связности сети путем поиска кратчайших путей. Показано, что оценка ФР сети является дополнительной характеристикой, отражающей топологические свойства сети. Дается сравнительный анализ предложенного метода и «выращивания кластера». Полученные результаты позволяют выбрать метод и получить оценки ФР сети в зависимости от ее особенностей. The paper analyzes the fractal dimension of the network and its use for telecommunication networks research and planning. The analysis of the "cluster growing" method for assessing the fractal dimension is given and a new method for assessing the fractal dimensionof anetwork is proposed, based onassessing the network connectivity by finding the shortest paths. The article shows that the assessment of the fractal dimension of the network is an additional characteristic that reflects the topological properties of the network. Comparative analysis of the proposed method and "cluster growing" is given. The results obtained make it possible to select a method and obtain estimates of the fractal dimension of the network, depending on its features.

scholarly journals Parallel Network Simulation With OMNeT++

2009 ◽  
Author(s):  
András Varga ◽  
Ahmet Y. Şekercioğlu Şekercioğlu
Keyword(s):  
Communication Networks ◽  
Large Scale ◽  
Distributed Simulation ◽  
Discrete Event ◽  
Rare Event ◽  
Telecommunication Networks ◽  
Event Simulation ◽  
Parallel And Distributed Simulation ◽  
Simulation Protocol ◽  
Parallel Network

This paper reports a new parallel and distributed simulation architecture for OMNeT++, an open-source discrete event simulation environment. The primary application area of OMNeT++ is the simulation of communication networks. Support for a conservative PDES protocol (the Null Message Algorithm) and the relatively novel Ideal Simulation Protocol has been implemented.Placeholder modules, a novel way of distributing the model over several logical processes (LPs) is presented. The OMNeT++ PDES implementation has a modular and extensible architecture, allowing new synchronization protocols and new communication mechanisms to be added easily, which makes it an attractive platform for PDES research, too. We intend touse this framework to harness the computational capacity of highperformance cluster computersfor modeling very large scale telecommunication networks to investigate protocol performance and rare event failure scenarios.

scholarly journals Performance of Base Stations in Railway Digital Radio Communication Networks

2021 ◽  
Vol 19 (2) ◽  
pp. 41-48
Author(s):  
Yu. V. Nemtsov ◽  
I. V. Seryogin ◽  
P. I. Volnov
Keyword(s):  
Communication Network ◽  
Communication Networks ◽  
Base Station ◽  
Base Stations ◽  
Radio Communication ◽  
Radio Communications ◽  
Digital Radio ◽  
Cargo Transportation ◽  
Assess Quality

Base station (BS) is a terminal device of a radio communication network, while railway radio communications play an important role in ensuring safety of passenger and cargo transportation.A proposed method for calculating the performance of base stations in railway digital radio communication networks is intended to calculate for the BS the probabilities of being in certain state.BS was decomposed and such functional elements as circuit groups and a radio frequency path were identified, as well as the central module ensuring the exchange of information with elements of this BS and with other BSs. A detailed study of each element has increased accuracy of the proposed method. Following the Markov model, BS is presented as a system in which all possible states are considered. Models for BS with two and three circuit groups have been constructed. The parameters of each functional element of the model can be obtained through observation over a certain period. The solution of the system of equations for each of the models presented in the article will allow obtaining the values of the system being in a certain state. The obtained characteristics can be used to calculate the reliability of the entire radio communication network, and then to assess quality of service provided to the users of this network.Conclusions are made about the possibilities of using the obtained models when designing new railway communication networks and when calculating quality indices of existing ones. The proposed models can be applied not only to railway radio communication networks but also to mobile communication networks of commercial operators. 

scholarly journals The Correlation Internal and Eksternal Characteristics with Communication Networks Self-help Rubber Farmer in Batu Bersurat Village XIII Koto Kampar District

2020 ◽  
Vol 3 (1) ◽  
pp. 27-36
Author(s):  
Muhammad Ikhsan Ikhsan ◽  
Roza Yulida ◽  
Fajar Restuhadi
Keyword(s):  
Communication Network ◽  
Communication Networks ◽  
Land Tenure ◽  
Information Needs ◽  
Test Results ◽  
Sources Of Information ◽  
Correlation Test ◽  
Self Help ◽  
Adequate Information ◽  
The Relationship

In order to encourage rubber agribusiness activities, farmers need adequate information and reliable sources of information to achieve their goals. To meet information needs, farmers develop communication networks between farmers and their actors. This research aims to describe the sociogram of the communication network of rubber farmers in self-help patterns,and analyze the relationship between farmer characteristics and communication networks.This research conducted in Batu Bersurat Village XIII Koto Kampar District. The method used in this research is the census method and the study respondents were taken as many as 42 farmers.  The results of this research indicate that the structure of the communication network formed in rubber farmers approached the radial personal networkstructure .Based on the correlation test results indicate that the characteristics of rubber farmers related to locall centrality are, extent of land tenure, cosmopolity, intensity of counseling, and number of sources of information. Correlation test results indicate that the characteristics of rubber farmers related to globall centrality are level of education, extent of land tenure, cosmopolity, intensity of counseling, and number of sources of information.Correlation test results indicate that the characteristics of rubber farmers related to betwenness are extent of land tenure, cosmopolity, intensity of counseling, and number of sources of information.

scholarly journals Self-organizing topology for energy-efficient ad-hoc communication networks of mobile devices

2020 ◽  
Author(s):  
Indushree Banerjee ◽  
Martijn Warnier ◽  
Frances M. T Brazier
Keyword(s):  
Communication Network ◽  
Mobile Devices ◽  
Communication Networks ◽  
Energy Efficient ◽  
Ad Hoc ◽  
Preferential Attachment ◽  
Scale Free ◽  
Simulated Environment ◽  
Adaptive Topology ◽  
Hoc Networks

Abstract When physical communication network infrastructures fail, infrastructure-less communication networks such as mobile ad-hoc networks (MANET), can provide an alternative. This, however, requires MANETs to be adaptable to dynamic contexts characterized by the changing density and mobility of devices and availability of energy sources. To address this challenge, this paper proposes a decentralized context-adaptive topology control protocol. The protocol consists of three algorithms and uses preferential attachment based on the energy availability of devices to form a loop-free scale-free adaptive topology for an ad-hoc communication network. The proposed protocol has a number of advantages. First, it is adaptive to the environment, hence applicable in scenarios where the number of participating mobile devices and their availability of energy resources is always changing. Second, it is energy-efficient through changes in the topology. This means it can be flexibly be combined with different routing protocols. Third, the protocol requires no changes on the hardware level. This means it can be implemented on all current phones, without any recalls or investments in hardware changes. The evaluation of the protocol in a simulated environment confirms the feasibility of creating and maintaining a self-adaptive ad-hoc communication network, consisting of multitudes of mobile devices for reliable communication in a dynamic context.

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