A.A. Smirnov1

1 Military Academy of Communications named after S.M. Budyonny MD RF (St. Petersburg, Russia)

1 vas@mil.ru

The organization of satellite communication networks is currently based on the use of the ground and space segments of a unified satellite communication system, the principles and basic solutions of which were developed quite a long time ago, which does not fully satisfy the requirements for a modern satellite communication system. The frequency resource that can be used is limited. The problem of limitation is aggravated by the fact that in the frequency range of a high-speed satellite communication system, hydrometeors have a great influence on the operation of satellite radio links and to ensure their required readiness it is necessary to create an energy reserve. The system serves vast territories with significantly different radioclimatic conditions, so the amount of required energy reserve is different.

Distribution of frequency-energy and time resources of earth stations and on-board relay complexes in order to achieve the required throughput while meeting the requirements for availability and reliability is one of the most important tasks in satellite communications planning.

The model was used to estimate the maximum achievable throughput under the influence of both unintentional and intentional interference. In this case, the worst-case energy characteristics of interference sources were used as initial data. Studying the dependence of throughput on power and band-width using a model allows us to identify the conditions for the formation of frequency-limited (with an energy excess) and energy-limited (with an excess of bandwidth) lines.

Smirnov A.A. Model of operation of a high-speed satellite communication system for rational distribution of frequency-energy and time resources in the space and ground segment. Achievements of modern radioelectronics. 2023. V. 77. № 12. P. 104–113. DOI: https://doi.org/10.18127/j20700784-202312-13 [in Russian]

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