Koreckyy O. Increasing the efficiency of optical transport systems with dense wavelength division mutliplexing

Object - the data flows transmission in all-optical telecommunication systems with wavelength division multiplexing. Subject - energy parameters of the optical transport system with wavelength division multiplexing that affect on the quality parameters of data flows transmission. Methods of research: the research was conducted based on the probability theory assumptions and mathematical statistics, analysis and simulation, the laws of boolean algebra, graph theory and the theory of information transfer. Theoretical and practical results: the model of information flow switching in optical switching node using vector-matrix algebra was proposed, which reduces the level of interchannel interference, by spatial diversity of interfering channels; the method of data flows transmission with orthogonal frequency division multiplexing technology was improved by adaptation for the optical transmission system with wavelength division multiplexing, which reduces the required value of signal to noise ratio; proposed the method of stochastic characteristics prediction in optical transport systems with wavelength division multiplexing, which allows increasing signal to noise ratio during network operation; improved the routing method based on metric of the channel state by making diagonal weighting coefficients in the adjacency matrix of network graph, which contains information about the time and energy parameters of optical switching nodes.