Abstract:

The rapid development of wireless communication systems has created a significant problem of radio resource scarcity. The results of measurement campaigns assessing the use of spectral resources indicate a low occupancy of the allocated frequency bands both in time and in space, which means low efficiency of their service. This is the static allocation of spectrum resources in which a given frequency range is allocated to users of legacy systems. For example, a report prepared for the city of New York shows that the average use of frequency resources is only 13%. When analyzing spectrum occupancy in a given area's time and frequency domains, many unused fragments can be identified, often defined as white spaces or spectrum holes. This paper concerns issues related to the potential areas of application of the proposed solution for the spectrum situation awareness building in systems with dynamic spectrum access, taking into account three aspects of this issue: frequency resources, time, and geolocation. As part of the work, the current state of spectrum monitoring, systems using this solution, and technologies enabling application in real systems are presented.