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City Backbone Network Traffic Forecasting

Serikov Tansaule, Zhetpisbayeva Ainur, Аkhmediyarova Аinur, Mirzakulova Sharafat, Aigerim Kismanova, Tolegenova Aray, Wójcik Waldemar

International Journal of Electronics and Telecommunications

2021

Vol. 67, No. 3

319--324

The work considers a one-dimensional time series protocol packet intensity, measured on the city backbone network. The intensity of the series is uneven. Scattering diagrams are constructed. The Dickie Fuller test and Kwiatkowski-Phillips Perron-Shin-Schmitt test were applied to determine the initial series to the class of stationary or non-stationary series. Both tests confirmed the involvement of the original series in the class of differential stationary. Based on the Dickie Fuller test and Private autocorrelation function graphs, the Integrated Moving Average Autoregression Model model is created. The results of forecasting network traffic showed the adequacy of the selected model.

Experimental determination of the characteristics of a transmission spectrum of tilted fiber Bragg gratings

Tolegenova Akmaral, Kisała Piotr A., Zhetpisbayeva Ainur, Mamyrbayev Orken, Medetov Bekbolat

Metrology and Measurement Systems

2019

Vol. 26, nr 3

581--589

In this article, we study tilted fiber Bragg gratings (TFBGs) with tilt angles of 6°and 8°, their transmission spectra, and spectral parameters that have a linear dependence on the refractive index of the environment. It is shown that there can be several such characteristics, such as the minimum, width and energy of the spectrum. The linear dependence of the spectrum width on the refractive index does not depend on the tilt angle. The linear dependence of the spectrum minimum is only observed for a tilt angle of 8°. The results of this work can be used to create a sensor system based on an optical fiber.