Abstract
Methods for improving the quality of functioning fiber-optic transmission systems based on the next NGN (Next Generation Network) and future FN (Future Network) communication networks using efficient technologies for the spectral division of an optical channel in optical telecommunication systems are analyzed. A new approach to the construction methods for calculating the capacity indicators of communication lines of a DWDM system and the performance fiber-optic transmission systems (FOTS) for guaranteed quality of service QoS (Quality of Service) and QoE (Quality of Experience) in the provision multimedia services "Triple Play services" and Bandwith on Demand. The quality indicators of FOTS functioning with the use of modern optical technologies of wavelength multiplexing when introducing single-mode fibers with attenuation are considered. Based on the study optical transport communication networks, the indicators were chosen for the capacity of fiber-optic transmission systems and the spectral efficiency modulation formats based on spectral WDM (Wavelength Division Multiplexing) and DWDM (Dense WDM) technologies in the provision multimedia services. In this paper, based on the methods for calculating the capacity indicators of the lines of a DWDM system, the issues quality of indicators FOTS functioning using spectral WDM and DWDM technologies are investigated. Further, the paper provides an analysis and calculation indicators of the throughput fiber-optic communication lines and spectral modulation efficiencies based on wavelength multiplexing.
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