Kubrakova K. Requests buffering method of real-time traffic transmission in a telecommunication network

The object of research - the process of service requests for the transfer of real-time flows in a telecommunications network. The aim of the thesis is to improve the utilization of channels and the user experience. Research Methods. In solving particular problems thesis used the theory of queuing systems, the mathematical apparatus of fuzzy logic and probability-time graphs. Thus, the development of mathematical models of real-time service flows, as well as assessing the quality of service requests for the transfer of real-time streams used elements of the theory of probability and queuing systems. With the improvement of mathematical models of neuro prediction and improvement of buffering used elements of the theory of fuzzy sets and fuzzy logic. Scientific novelty rezultativ.1. Advanced mathematical model of service requests received by the telecommunication channel, due to the possibility of simultaneous transmission over multiple streams of real-time, allowing you to identify the channel efficiency for the given parameters of requests for the transfer of real-time streams. 2. For the first time developed a mathematical model for evaluating the quality of services, which, in contrast to the known, by taking into account the probability of service requests to assess the quality of service reservation requests channel resources. 3. Receive the further development of prediction models neuro traffic parameters telecommunications network by taking into account of the average intensity of the receipt of requests for the transfer of real-time streams for telecom link and the average duration of transmission of these streams, allowing to predict the parameters of the traffic network. 4. An improved method for buffering transfer requests streams real-time by taking into account the probability of service requests for the transfer of real-time streams, which increases the quality of service requests for the transfer of real-time streams. The practical significance of the research results. 1. The calculation results showed that the use of an improved method of buffering improves quality of service requests for real time stream transmission, including telecommunications channel utilization factor is increased by 5-15% depending on the parameters of the requests for buffering the real-time transmission flows. 2. Comparative evaluation showed that the probability of servicing the request is growing by an average of 3.9% - 12.8%, depending on the parameters of transfer requests streams real-time. 3. The results are used in research projects conducted under the "Concept of development of communication in Ukraine," and used in the process of teaching and research work of Poltava National Technical University. Yuri Kondratyuk. 4. In a medium MATLAB + Simulink developed simulation models that allow to obtain quantitative indicators characterizing the dependence of the use of the channels of the network buffering parameters. 5. An improved mathematical model for estimating the service utilization of telecommunication channels, developed a mathematical model to assess the quality of service requests for the transfer of real-time streams, an improved method for buffering transfer requests streams real-time, as well as the model developed neuro forecasting parameters real-time traffic is scientifically practical basis for the creation of a telecommunications system that provides high-quality transmission of real-time streams. The results of scientific research have been implemented in the enterprise "Malkos" (PE "Egura") in the performance of tasks related to the design and development of a software system for the transmission and control of multimedia streams (the act of implementation of 4/25/2014) and in the educational process of Poltava National Technical University. Yuri Kondratyuk (act of realization of 23.05.2014).