Rokovyi O. Method and means for providing quality of service for multimedia data transmission in a heterogeneous networks

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0415U000858

Applicant for

Specialization

  • 05.13.05 - Комп'ютерні системи та компоненти

30-03-2015

Specialized Academic Board

Д 26.002.02

Publishing and Printing Institute of Igor Sikorsky Kyiv Polytechnic Institute

Essay

The method of adjusting the jitter buffer, based on the forecast value fluctuations (standard deviation) packet transmission delay, jitter supports buffer size at the minimum level at which no packet loss. This approach allows to respond to changes in packet transmission delay fluctuations are not in fact change and advance. The process of varying the jitter buffer occurs smoothly, without compromising the quality of voice data in terms of a large fluctuation delay packet. The proposed method of determining the initial data for singular spectral analysis, which allows for the required accuracy of the forecasting at a given horizon. The proposed method of choice for packet rejection receiver buffer in case of reduction of the amount and method of compensation (filling) the receiver buffer in case of an increase in its size. With the E-model evaluated the effectiveness of the proposed method of regulating jitter buffer compared with F-EXP-AVG method. The proposed method showed higher scores MOS at large fluctuations of delay and packet transmission method gave slightly F-EXP-AVG for small values of fluctuation.

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