Assessment of spectrum utilization efficiency in radio-relay systems

The problem of efficiently utilizing such a limited natural resource as spectrum in radio-relay systems is described. It is shown that there is a shortage of frequency spectrum in certain radio frequency bands. For Tomsk region, the spectrum utilization efficiency in 8 GHz radio-relay systems is assessed. Radio signal path loss and fade margins were calculated for the intervals of the radio relay system. The underlying terrain data used in the calculations were obtained by remote sensing of the Earth with an accuracy of one angular second. Several possible solutions to increase spectrum utilization efficiency are proposed.