Abstract

In recent years the study of infocommunication systems has been devoted a lot of work. However, until now not been proposed model adequately describing information and communication systems and allowing to use the entire arsenal of classic methods for analyzing nonlinear dynamic systems. The paper proposes a new approach to the analysis of the behavior of infocommunication systems with the TCP protocol - considering them as nonlinear dynamical systems that exhibit chaotic properties when defined-represented values of the parameters. The phase portraits of the studied systems, values calculated maximum Lyapunov exponent for different values of the basic parameters of the systems. The aim of the research was to find the optimal values of the parameters of infocommunication system, in which the area of performance (ie, the area of the system parameters in which it absence, chaotic phenomena exist) maximum. To achieve this goal the following tasks were solved: statement of the problem of parametric optimization of infocommunication system with the TCP protocol;- obtaining an algorithmic model of the objective function on the basis of the simulation model of infocommunication systems;- the choice of method solving the optimization problem;- the solution of the optimization problem with the selected optimization methods.

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