Optimization of Testing Intervals in the Conditions of Optical Fiber Periodic Predictive Control

Using the fiber-optic communication lines as a guide medium for access networks makes it possible to provide broadband communications, which is necessary in the digital economy. Along with such an indicator of the quality of communication as the speed of information transmission, reliability indicators are widely used. The article discusses the influence of the testing time interval on reliability indicators during periodic predictive monitoring of the fiber-optic communication line state. In particular, the influence of the control period interval and the testing time interval on the unavailability factor of the fiber-optic communication link is investigated. In this case, models of Markov and semi-Markov processes are used to describe the state of the optical line in time. The expressions that allow estimating the optimal ratio between the control period and the testing time on the period that provides the required level of the reliability indicator of the fiber-optic communication link are given.