Items of № 4, 2012

The Electrosvyaz Magazine is one of the leading science & technical magazines in Russia.

ASTASHKIN P.M.

Classes of information and factors having impact on quality and speed of decisions made while managing information security overall system projects

In given article the author considers a theme of influence of classes of the information and factors on quality and speed of accepted decisions at management of projects of complex system of information security.
The author has in detail described classes the information which are necessary fordecision-maker for decision-making, and also the existing factors influencing quality and time, given for decision acceptance, has considered their influence and interrelation, had shown, as decision-maker can manipulate them for achievement of the set quality of the made decision for given time for its acceptance.
In conclusion of article the author had been drew a conclusion on possibility manipulation with the various factors for achievement of the set quality of the made decision for given time for its acceptancebydecision-maker.                                                                                                 Key words: influence, decision-maker, manipulation.


 

LEVAKOV A.K.

Simulation model for studying a NGN network under a significant traffic growt

In the article, the parameters of the simulation model designed for studies of quality of service in next generation network under dramatic increase of traffic are considered. Single-line teletraffic system is used as a model. The input to the system is the flow of calls (IP-packets) with different distribution laws. Call service time is assumed to be constant or random value with small coefficient of variation. Queue is limited. Two types of service are used: «First In, First Out» and with priorities. Proposed model allows study of real processes of IP-packets service in the next generation network.
Key words: traffic, simulation model, teletraffic system, IP-packet delay, mean of distribution, coefficient of variation.


 

KOCHEROV A.V.

Telecommunication quality management. The main thing is measurement

The article gives a review of documents and methods, which allow to determine stability and quality parameters of the public switched telephone and cellular network. Key words: method, determine stability, network.


 

NIKITIN B.K., PIRMAGOMEDOV R.Y.

Reliability of passive optical networks. Optical splitters

The article deals with certain aspects of reliability of networks of broadband access, implemented in the PON technology. A suggested approach to the development of universal mechanisms of estimation and forecasting of reliability of passive optical networks. Presented the results of the tests of optical splitters in the conditions of high temperature and humidity. On the basis of data obtained in the course of the test, time to failure of splitters in normal operating conditions was calculated.
Key words: passive optical network, optical splitter, reliability, test methods, time to failure.


 

ALBOV N.Y., ADZHEMOV A.S.

Statistical analysis of incoming traffic of applications for testing services of information and education resources

This paper is focused on statistical analysis of arrival process to the testing module in e-learning service network. The criterion of peak traffic time is proposed. It is found that interarrival time distribution is exponential. Another result of analysis is that the request stream in the intervals of peak traffic time is stationary.
Key words: statistical traffic analysis, KPSS, interarrival times.


 

IBRAHIMOV B.G., IBRAHIMOV G.G.

Estimating the efficiency of a multimedia transfer via a single user’s or network’s terminal

Key words: еfficiency, multimedia traffic, user’s and network terminal, quality of service, multiservice network link, terminal equipment.


 

VOLKOV A.A.

Transmission of clipper speech signals by means of 180° SSB PSK

Propose system of quality transmitting speech by clipper and SSB PSK on 180° mit recovery amplitude.

Key words: сlipper, speech, PSK on 180°, SSB, transmitting.


 

TROFIMOV V.K., KHRAMOVA T.V.

Compression of information generated by an unknown source

The method of compression of the information generated by unknown Markov’s source by symbols with varying durations is offered and proved its optimality.
Key words: entropy, coding, the cost of encoding, capacity, source.


 

KUZOVKOVA T.A.

Substantiation of the infocommunication branch’s economics’ scientific basis

A conceptual construct formation of the infocommunication branch of the national economy is based on determination of the factors of economic boarders of the branch and the product market, revealing of the specific characteristics of markets with network effects, of production and service selling within infocommunication branch. For the economic definition of complex infocommunication branch and its components the estimation of the essence and the meaning of the branch as a part of production and social infrastructure are conducted, and the accepted in Russian Federation and international business classifications of economy types are applied.
Key words: branch, market, economic boarders, infocommunications, infocommunication product, service.


 

TSYM A. Yu., IVANOV I. A.

Integrated assessment of an enterprise’s potential taking into account production, economic and financial ratings in aggregate

In managing difficult production complex, consisting of individual companies, in matters of development, the development strategy of mergers and acquisitions appropriate to rely on an objective assessment of the capacity of the enterprise. The authors propose a comprehensive assessment of the effective potential of the company in aggregate production, economic and financial indicators. Methods of calculating the integrated assessment illustrated by the large typed trust to build communication lines. No association with any particular such enterprises and the construction and installation departments are random.
Key words: enterprise, enterprise potential, enterprise management, qualimetry, integrated assessment.


 

BUROVA A.A., KALININ A.L., LEPPA V.R.

High power and speed antenna tuning unit

In this article powerful antenna tuning unit with computational tuning technique, providing increased reliability and high-speed performance, is presented.
Key words: antenna tuning unit, antenna-feeder path, radio transmitter, tuning time, standing wave ratio.


ZAKHAROV L.F.

Compensating stabilizers’ durability analysis

Key words: regulator cell, stability voltage stabilizer continuously working, time constant, transfer constant, transfer function, magnification constant, voltage stabilizer continuously working.


DOKUCHAEV V.A., SHVEDOV A.V.

Security support for VoIP enterprise networks


BYKHOVSKY M.A.

Measuring wave angles while receiving signals in a multipath telecommunication channel


 

MAKAROV V.V., SLUTZKY M.G.

Telecommunication projects’ quality management system engineering

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