Radio relay communication plays an important role in the creation of digital infrastructure.
Modern digital radio relay lines allow organizing high-speed communication channels supporting the
transmission of all types of traffic, including voice messages, packet data transmission, and video signals
in real time. The article discusses methods for calculating digital radio relay communication lines, and
also provides general recommendations for organizing digital radio relay communication lines. The
design of radio relay lines is carried out in such a way that they have high bandwidth and high reliability, taking into account the physical (energy) and channel-network capabilities of the system. The calculation
method requires determining the energy parameters, deriving the form of the quality equation,
calculating the performance criteria and methods for calculating the attenuation of radio waves at radio
relay intervals. The possibility of using MPLS-technology in the radio relay communication was
positively assessed. The radio relay network routing system is based on multiplexing streams with a
protection mechanism at the channel and network levels. Continuous adaptive modulation mode allows
flexible QAM rate change, allowing continuous traffic. The redundancy according to the «1+1» and
«2+0» schemes is considered. This scheme doubles the system throughput and prioritizes traffic. The
technique allows you to build a digital radio relay network with flexible changes in both physical and
network parameters.
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Klyuchnikov Viktor O.
Email: klyuchnikovvo@yandex.ru
Military Academy of Communications named after Marshal of the Soviet Union S.M. Budenny
St. Petersburg, Russian Federation
