QUALITY OF SERVICE PROVIDING
OF INFORMATIONAL SYSTEMS ON A BASE OF A CONTROLLED PROCESS LOCAL MODEL
O.G. Slavko, P.P. Kostenko
The problem of quality of service in
information systems and networks is examined. It is shown that a problem of
parametric identification of mathematical model of data transferring process in
case of its nonstationary and uncertainty is occur in
a task of quality of service providing. Indicated that method
of the controlled process local model synthesis can be applied to the transfer of
network data, mathematical models of which are described by ordinary
differential equations. The improvement of method of
quality of service providing with usage of a controlled process local model of
the data in real time while preventing congestions. The proposed method
allows to adjust the parameters of the algorithms of
random early detection in case of parametric uncertainty and nonstationarity of the data transfer process on a base of
the equivalent of unknown input signals.
Key words: data transfer
process, процесс передачи данных, quality of service,
congestion avoidance.