TECHNIQUE FOR A QUICKLY DEPLOYED COMMUNICATION NETWORK CREATION BASED ON RADIO RELAY LINES
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.
Keywords: radio relay network, radio relay lines, calculation methods, quality indicators, radio wave propagation, packet delivery route.