The Future of Spectrum Sharing: From the Spreadsheet to the Algorithm

The Future of Spectrum Sharing: From the Spreadsheet to the Algorithm

With an increasing demand for high speed connectivity, wireless technologies have occupied wider bandwidths and taken up more spectrum than before. This has increased the pressure on regulatory agencies to allow spectrum sharing among multiple communication systems. As more bands are shared, interference scenarios become more complex and more sophisticated technologies are required to guarantee spectrum compatibility.

This paper explores two technological developments which facilitate spectrum sharing: tiered spectrum access and advances in interference mitigation techniques. As an example of tiered spectrum access, the structure of the spectrum management systems proposed by CBRS is described followed by an overview of the research on the topic. This paper also describes how new technologies can reduce inter-system interference and allow sharing of new portions of spectrum. To that end, the 1755 – 1850 MHz band is used as an example.

Annex 1 provides a complete frequency sharing study, developed by Access Partnership, between tactical radio relays and 4G/5G mobile networks in the 1755 – 1850 MHz band to illustrate how the development of communication technologies also has an impact on the possibility of spectrum sharing.



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