Improving the Information Security of Modern Telecommunications Networks

The main characteristics of fiber-optic networks for which you can keep statistics, predict losses in signal propagation by communication lines, establish the presence of unauthorized access to the network are the power of the optical signal at the transmitter output and receiver input, respectively, and bit error rate. Its value is defined as the ratio of error-decoded bits to the total number of bits transmitted. According to the specified characteristics it is possible. Existing methods prevent the main methods of ND to optical fiber, but are characterized by low accuracy of establishing the location of unauthorized connection in fiber-optic communication lines. The proposed method of control of fiber-optic communication lines is based on the simultaneous use of hardware and software, which allows to increase the protection of information flows through additional processing of information signals transmitted in fiber-optic communication lines and increase the reliability and accuracy of location unauthorized access to optical channels. This argument confirms the timeliness and relevance of the scientific and practical problem, the solution of which requires the development of methods and practical provisions for the construction of means of control of unauthorized access in fiber-optic communication lines.