No 1 (2026)

Once every two years, Perm hosts the most prestigious scientific and technical event in the field of fiber optics in our country. From October 7 to 10, 2025, the capital of the Perm region welcomed the 10th All-Russian Dianov’s Conference on Fiber Optics at the traditional venue, the Cultural Space of "Perm Scientific and Production Instrument-Making Company". The report highlights the telecommunications aspect of the event.

The principles of building an operator-class FTTH network cable system in the private sector, mounted on power line poles, are discussed in light of the requirements of the Russian Ministry of Energy Order No. 327 and the Electrical Installation Regulations (7th edition), taking into account extreme climatic loads.

Celebrating its 25th anniversary in March 2026, the St. Petersburg company InfoTel is one of Russia’s leaders in the planning and optimization of wireless communication networks. The paper presents history and current state of the development team.

The paper continues the series dedicated to ray tracing issues in fifth-generation and beyond radio access networks and systematizes the theoretical foundations and practical application scenarios of the Shooting and Bouncing Rays (SBR) method. The physical principles and mathematical models of the SBR method are considered. Using simulation modeling in the Matlab software environment with digital terrain models, the mechanism for adapting the SBR method to the task of predicting ray trajectories in radio access networks with base stations employing antenna arrays is illustrated.

This series of papers examines the of transport fiber optic transmission systems (FOTS) evolution including standardization and the main directions of FOTS technology development (Part 1); features of transport FOTS generations (Part 2); advantages of fifth-generation fiber-optic transport networks (part 3).

A comprehensive analysis is conducted on design methods development, calculation, and practical implementation of spherical reflector antennas with multibeam systems from 2005 to 2025. The theoretical foundations of hybrid-reflector configurations, evolution of reflector array technologies, and application of these technologies in satellite communication systems in various orbits—from geostationary (GEO) to low Earth orbit (LEO) satellites and megaconstellations are considered. Special attention is given to compensating spherical aberration methods, techniques for controlling radiation patterns and polarization characteristics, as well as an analysis of transitional forms between classical systems and modern intelligent reflective surfaces based on metamaterials. A critical analysis of the applicability of different antenna technologies in the context of satellite systems is carried out.

The concept of the renovation method is introduced as a means of maintaining the operational readiness of the power supply system of the data center’s engine room. Taking into account the achieved state of the art and the current market situation, the technical and economic feasibility and prospects of its application are shown. The necessary conditions for applying the proposed approach have been identified and practical recommendations for its implementation have been given.