A telecommunications network is a group of nodes and connections between them, the main purpose of the organization of which is to transmit information for a certain period of time. Since the network is only a tool, the technologies of applying this tool to the transmitted information may vary, i.e. the algorithms for transmitting information between nodes, choosing the order of transmission, building routes from one node to another may differ depending on the principles of network organization and the goals of information transmission. One of these technologies is Segment Routing (SR), created in order to improve the methods of working with the network, its vision and eliminate the problems inherent in the technologies previously used on these networks. Segment routing represents an important evolutionary step forward in the design, management and operation of modern data transmission networks. An important mechanism for optimizing the use of network resources is the load balancing mechanism. Data on the status of nodes and data transmission channels in the network can significantly facilitate the task of ensuring load balancing in the network. This article is devoted to an overview of segment routing technology, consideration of existing prerequisites for more active implementation and use of this technology.

The paper considers the solution to the problem of increasing the spectral efficiency of a digital transmission system with multifrequency modulation and optimal finite signals that do not cause intersymbol interference in various channels of a multifrequency modem. Applying the method of multi-frequency data transmission based on two-dimensional signal processing, high-speed data transmission is organized over frequency-limited communication channels based on wired technologies of the xDSL standard. The well-known and new modem, which is superior in efficiency to similar modems, are presented. In this paper, the modernization of a multifrequency modem with optimal finite signals based on quadrature amplitude modulation (QAM) is considered. The peculiarity of this structure is as follows: the use of new, synthesized optimal finite OFS-2 signals with increased noise immunity; in the application of the new structure of the multi-frequency modem MFM3; in the use of a frequency-limited GCS in the UEP DCS at the reception in order to compensate for the amplitude and phase distortions introduced by it. Comparative results of calculations of the spectral-energy efficiency of the considered multi-frequency modulated modem MFM3 with OFS-2 and narrow-band subcarriers are illustrated by the graphs in Fig. and presented in Table . Implementation of the new modem in digital telecommunications systems will significantly increase their spectral efficiency. The proposed approach can be used to organize high-speed data transmission over frequency-limited communication channels based on wired technologies of the xDSL standard. For the first time, an adaptive multi-channel digital transmission system with a new multi-frequency modem and new optimal second-type finite signals with increased spectral and energy efficiency has been developed, taking into account optimal estimates of the parameters of the direct communication channel transmitted via the feedback channel and used both in transmission (in the modulator) and reception (in the demodulator).

The automated system of control and management of life cycle of an intelligent building and, in general, of the Smart City requires high-quality supervision, control and preventive maintenance to handle water supply networks, delineation of operating balance and responsibility for engineering networks functioning and structures between suppliers and consumers, ensuring water analysis. This article discusses the advantages of a module that sends data to telecontrol in real time and allows to solve problems such as: continuous and comprehensive monitoring of the state of a remote DWI (Drinking Water Intake) object; remote control of the object; remote control of the actions of the staff; automatically preventing personnel from incorrect actions; increasing the level of organization of energy accounting, efficiency and reliability of obtaining information; improving safety, production culture and improving working conditions; obtaining detailed information about the parameters of the power grid, the electrical equipment operation and the implementation of dispatching control in real time; optimization of technological modes of operation. The study can help reduce the number of accidents at facilities and improve work efficiency as well as solve the issues of work by providing the equipment with new devices, such as MCU series controllers.

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