Now showing items 41-60 of 1764

    • EFFICIENCY ESTIMATION OF COMPUTING GRIDS WITH VARIOUS TRAFFIC TYPES 

      Shmeleva, T.R.; Шмельова, Т.Р.; Шмелёва, Т.Р. (ОНАЗ ім. О.С. Попова, 2017)
      For the efficiency evaluation of computing grids with different types of traffic, reenterable colored Petri nets are suggested. The principles of constructing models in the form of reenterable colored Petri nets are ...
    • EFFICIENCY EVALUATION OF THE "VECTORING" SYSTEM APPLICATION ON THE CONNECTING LINES DURING MODERNIZATION OF THE RURAL TELEPHONE NETWORK 

      Оreshkov, V.І.; Орєшков, В.І.; Орешков, В.И. (ОНАЗ ім. О.С. Попова, 2018)
      The urgency of the "digital divide" problem is a global problem. That the problem is in particular and acute in Ukraine, is described in the article. It is proposed to use VDSL2 technology for modernization of the rural ...
    • EFFICIENCY OF PARTLY ERRORS CORRECTION IN ARQ DTS BASED ON TIMER SIGNAL CONSTRUCTION 

      Захарченко, Н.В.; Хомич, С.В.; Белова, Ю.В.; Севастев, Е.А.; Захарченко, Н.В.; Хомич, С.В.; Сєвастєєв, Е.О.; Zakharchenko, N.V.; Homich, S.V.; Belova, Yu.V.; Sevasteev, E.A. (ОНАЗ ім. О.С. Попова, 2014)
      Розроблено метод передавання на базі систем з вирішальним зворотнім зв’язком та таймерних сигнальних конструкцій з корегуванням частини помилок інтервалу «хорошого» стану рівнянням якості. Визначені граничні умови його ...
    • EFFICIENCY STUDY OF ALGORITHMS APPLIED IN DVB-T/ DVB-T2 SYSTEMS AT PRESENCE OF PHASE NOISE 

      Баляр, В.Б.; Balyar, V.B. (ОНАЗ ім. О.С. Попова, 2014)
      In article study results in direction of efficiency estimation of algorithms used in DVB-T/ DVB-T2 systems at presence of phase noise with parameters defined in DSTU ETSI TR 101 290. Obtained estimations will be used as ...
    • ELABORATION OF A SOFTWARE AND LAB ENVIRONMENT FOR IN-DEPTH OWD ANALYSIS ON WIRELESS LINKS USING LTEST 

      Nikityuk, L.A.; Siemens, E.; Нікітюк, Л.А.; Сіменс, Е.; Никитюк, Л.А.; Сименс, Е. (ОНАЗ ім. О.С. Попова, 2014)
      : Research of optimal transfer protocol for organization of a reliable data transfer between serial devices for GPRS/EDGE and UMTS networks with subsequent using it in elastic jitter buffer algorithm. The main criterion ...
    • ESTIMATING THE SERVICE WAITING PROBABILITY IN A SINGLE-CHANNEL SYSTEM WITH SELF-SIMILAR TRAFFIC 

      Lozhkovskyi, A.G.; Levenberg, E.V.; Ложковський, А.Г.; Левенберг, Є.В.; Ложковский, А.Г.; Левенберг, Е.В. (ОНАЗ ім. О.С. Попова, 2018)
      Estimation of the service quality characteristics in a single-channel system with queue for the packet network is often reduced to the determination of the Hurst exponent for self-similar traffic, after which using the ...
    • ESTIMATION OF QoS CHARACTERISTICS OF SELF-SIMILAR TRAFFIC FOR THE Wв/M/1/infinity QUEUING SYSTEM 

      Strelkovskaya, I.V.; Siemens, E.; Solovskaya, I.N.; Fedotova, I.; Стрелковська, І.В.; Сіменс, Е.; Соловська, І.М.; Федотова, І.; Стрелковская, И.В.; Сименс, Е.; Соловская, И.Н.; Федотова, И. (ОНАЗ ім. О.С. Попова, 2018)
      The work considers the problem of Quality of Service (QoS) characteristics estimation for self-similar traffic serviced by a queuing system of the Wв/M/1/infinity type using the Weibull distribution. To solve this problem, ...
    • FORMALIZATION OF THE INFOCOMMUNICATION NETWORK ADAPTATION TASK WITHIN THE LIFE CYCLE AND THE GENERAL APPROACH TO ITS SOLUTION BASED ON GENETIC ALGORITHMS 

      Nikityuk, L.A.; Нікітюк, Л.А.; Никитюк, Л.А. (ОНАЗ ім. О.С. Попова, 2017)
      Infocommunication network on formal grounds is a complex system that functions in a disturbing environment, evolves over time and is characterized by non-stationary fault flow of its subsystems and elements. In this paper ...
    • FORMATION THE PIЕCOSECOND OPTICAL PULSES OF THE ASSIGNED STRUCTURE USING PRECISION LINES OF DELAY 

      Odegov, N.A.; Staren"kiy, I.V.; Kostjuk, V.V (ОНАЗ ім. О.С. Попова, 2018)
      The article examines the development of methods of one to increase the spectral efficiency of the fiber optic systems of transmission. The essence of the method is shown with the use of alphabet as signals with peak ...
    • FOURIER ANALYSIS OF THE TEXTURE OF HIGH-DEFINITION IMAGES 

      Osharovskaya, E.V.; Ошаровська, О.В.; Ошаровская, Е.В.; Patlayenko, N.A.; Патлаєнко, М.О.; Патлаенко, Н.А.; Pyliavskyi, V.V.; Пілявський, В.В.; Пилявский, В.В. (Львівський національний університет ім. Івана Франка, 2018)
      This paper presents the results of measuring the signal-to-noise ratio at the boundary of object contours in highdefinition images after compression of the original digital stream based on the Fourier transform and the ...
    • FRACTAL CODING OF VIDEO SEQUENCES BY GENETIC ALGORITHM 

      Osharovskaya, E.V.; Patlaenko, N.A.; Ошаровська, О.В.; Патлаєнко, М.О.; Ошаровская, Е.В.; Патлаенко, Н.А. (ОНАЗ ім. О.С. Попова, 2017)
      The results of application of the modified genetic algorithm of fractal coding to still images and video sequences are presented. The dependence of the compression coefficient on the size of the rank block is obtained. ...
    • GENERAL INDIVIDUAL ATTACK ON THE PING-PONG PROTOCOL WITH COMPLETELY ENTANGLED PAIRS OF QUTRITS 

      Vasiliu, E.V.; Васіліу, Є.В.; Василиу, Е.В. (Cornell University, 2009)
      The general individual (non-coherent) attack on the ping–pong protocol with completely entangled pairs of three–dimensional quantum systems (qutrits) is analyzed. The expression for amount of the eavesdropper’s information ...
    • GENERATION OF DEFECTS IN P-N-JUNCTIONS THAT ARE MADE FROM GaAS AND GaAIAS AFTER THE X-RAY IRRADIATION 

      Irkha, V.I.; Ірха, В.І.; Ирха, В.И.; Gorbachev, V.E.; Горбачов, В.Е.; Горбачев, В.Э.; Mikhalaki, V.F.; Міхалакі, В.Ф.; Михалаки, В.Ф. (Національний університет «Львівська політехніка», 2012)
      The process of generation and reproduction of dark-patch defects in GaAs and GaAlAs p-n-junctions after the X-ray irradiation are considered.
    • THE GENERELIZED CLASSIFICATION MODEL OF IoT-PLATFORMS 

      Tsaryov, R.Yu.; Korovkina, K.V.; Царьов, Р.Ю.; Коровкіна, К.В.; Царёв, Р.Ю.; Коровкина, К.В. (ОНАЗ ім. О.С. Попова, 2017)
      The relevance of the concept development of the Internet of Things was shown in the article. The generalized classification model of Internet of Thighs (IoT) platforms was proposed. The model is represented by two levels: ...
    • IMPROVING DYNAMICS OF OBJECTS INTERACTION IN LTE BASED WIRELESS NETWORK 

      Taher, A.K.; Тахер, А.К. (ОНАЗ ім. О.С. Попова, 2016)
      This work analyses resource scheduling in LTE technology radio channel consider dynamics of terminal network objects interaction in real-time mode for multimedia data transmission over a packet-based network. It is ...
    • IN THE FIELD OF NEXT GENERATION NETWORKS BUILDING 

      Vorobienko, P.P.; Воробієнко, П.П.; Воробиенко, П.П. (Одеський національний політехнічний університет, 2013)
      There is provided an overview of the number of innovative technological solutions created by the scientists of A.S.Popov ONAT in the field of NGN building. In particular we consider the new telecommunication technologies ...
    • THE INCREASE OF TRANSMISSION PROTECTION BASED ON MULTIPLEXING OF TIMER SIGNAL CONSTRUCTIONS 

      Korchinsky, V.V.; Kildishev, V.I.; Osadchuk, K.O.; Корчинський, В.В.; Кільдішев, В.Й.; Осадчук, К.О.; Корчинский, В.В.; Кильдишев, В.Й.; Осадчук, Е.А. (ОНАЗ ім. О.С. Попова, 2018)
      In the article the method for increasing the security of confidential information transmission based on multiplexing of timer signal structures is addressed. The feasibility of this study is justified by the need to ...
    • INFINITE PETRI NETS: PART 1, MODELING SQUARE GRID STRUCTURES 

      Shmeleva, T.R.; Шмельова, Т.Р.; Шмелёва, Т.Р.; Zaitsev, D.A.; Зайцев, Д.А.; Зайцев, Д.А.; Zaitsev, I.D.; Зайцев, І.Д.; Зайцев, И.Д. (Complex Systems Publications, Inc., USA, 2017)
      A composition and analysis technique was developed for investigation of infinite Petri nets with regular structure, introduced for modeling networks, clusters and computing grids, that also concerns cellular automata and ...
    • THE INFLUENCE OF INACCURACY OF DISPERSION CORRECTION ON DWDM SYSTEM QUALITY PARAMETERS 

      Mazur, A.D.; Pedyash, V.V.; Мазур, Г.Д.; Педяш, В.В.; Мазур, А.Д.; Педяш, В.В. (2018)
      The wide distribution of broadband access services makes it necessary to increase the capacity of the transport systems of the telecommunications network. To solve the problem, fiber-optical transmission systems with ...
    • INNOVATIVE STRATEGY OF THE TELECOMMUNICATION ENTERPRISE DEVELOPMENT 

      Kaluhina, N.A.; Калугіна, Н.А.; Калугина, Н.А.; Sakun, A.A.; Сакун, Г.О.; Сакун, А.А.; Tardaskina, T.M.; Тардаскіна, Т.М.; Тардаскина, Т.М. (Чернігівський національний технологічний університет, 2017)
      In these studies, priority is given to the formation of innovative strategy, which can ensure development of the company in the light of building an innovative economy and information society. В цих дослідженнях пріоритет ...