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Информация об авторах:
Канаев Андрей Константинович,
профессор, д.т.н., Петербургский государственный университет путей сообщения Императора
Александра I (ФГБОУ ВО ПГУПС), заведующий кафедрой "Электрическая связь", г. Санкт-Петербург, Россия
Лукичев Михаил Михайлович, 
аспирант, Петербургский государственный университет путей сообщения Императора Александра I, 
г. Санкт-Петербург, Россия
Лукичева Вера Леонидовна, 
аспирант, Петербургский государственный университет путей сообщения Императора Александра I, 
г. Санкт-Петербург, Россия
DOI 10.24411/2072-8735-2018-10328
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THE FORMATION METHODOLOGY FOR EQUIVALENT MULTI-SERVICE NODE 
OF A TECHNOLOGICAL COMMUNICATION NETWORK IN A SIMULATION 
ENVIRONMENT THAT TAKES INTO ACCOUNT ALL THE PARAMETERS 
OF THE QUALITY OF SERVICE IN A STEADY MODE
Andrey K. Kanaev,
St.Petersburg state transport university of the emperor Alexander I, St.Petersburg, Russia, 
[e-mail] 
Mikhail M. Lukichev, 
St.Petersburg state transport university of the emperor Alexander I, St.Petersburg, Russia, 
[e-mail]
Vera L. Lukicheva,
St.Petersburg state transport university of the emperor Alexander I, St.Petersburg, Russia, 
[e-mail]
Abstract
When studying the behavior of elements technological communication networks, it is necessary to use simulation models. This approach
allows us to assess the quality parameters of its functioning at the stage of designing a communication network. In addition, during the
operation of technological communication networks, simulation models make it possible to assess the degree influence of topology
changes and increasing the number of sources of structured information flow. However, the accuracy of the simulation results direct-
ly depends on the parameters of the object under study being incorporated into the model. With insufficient accuracy in constructing
the elements of the model, the simulation result as a whole will be unreliable. Or, on the contrary, with an overly detailed description
of the functioning of each network element, the time taken to build the model and its execution will be disproportionately long. This
article discusses the methodology for the formation of optimal models of the network node of a communication network, which allows
to highlight the most significant parameters of the device in question. Using the presented methodology in conjunction with the method-
ology for generating a structured network load, as well as topology, allows you to create models that evaluate the behavior of the entire
communication network, as well as highlight the quality parameters of the functioning of such networks. In order to build the most
accurate model, the probability and time characteristics of the network node were analyzed, and also to verify the result, a communi-
cation network functioning model from one node with load generators of a different class was constructed, which allows one to 
evaluate quality parameters. The proposed methods, models, and parameters identified experimentally do not contradict well-known
scientific works in this field, make it possible to clarify and highlight the most significant functions of network communication nodes,
and can also be used in further studies.
Keywords: 
transport communication networks, simulation, probability-time traffic characteristics, information transmission delays, delay time
variation, packet loss ratio, traffic sniffer, models of a communication network node, information transmission quality parameters.
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