Shchebenuk V. Models and Methods of quality service of streams of control in the multipath system of adaptive telecommunication networks

The object of study - the process of information exchange in the adaptive telecommunications networks (ATN) by multi-route path. The purpose of the study - improving the efficiency of ATN through the development of methods and models for ATN using multi-route transfer. Methods: queuing theory, probability-time graphs and derivatives, probability theory and stochastic processes, theory of electrical communication. Scientific novelty: 1) was further developed the model of information exchange in ATN which, in contrast to the known features of the organization is built on a multi-route path. The model is the fact that when assessing the main probabilistic-time characteristics makes it possible to take into account the quality of variable-speed channels are used in a multi-route path, protocol features, self-similarity of traffic and redundancy; 2) improved model of control of network channel, a distinctive feature is the integrated use of both time probability graphs and derivatives of functions and Markov circuits and queuing theory. The model allows to estimate not only the mean and variance of message delivery times, but also the probability of message delivery in a given time, without restrictions on traffic characteristics; 3) have been further developed the methods and models of management traffic in multi-route transfer, recovery of lost and distorted fragments, considering the influence of the different operating modes and forming of the message from received fragments; 4) first developed methods and models channel and multi-channel synchronization differs from the known fact that has been described as uniaxial, biaxial and methods, and the method without the use of feedback. Models give probabilistic-time characteristics, compare the different methods and characteristics allow to reasonably choose thresholds of transition between stages of the installation process of synchronous operation. Practical results: developed methods and models allowing to estimate and compare the various options for implementing multi-route path can be used to upgrade existing, and for the development of advanced telecommunications networks. Area of application - telecommunication systems and networks.