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In this paper we propose radio environment map (REM) as a mean for setting up and maintaining wireless communications in disaster areas providing services to public protection disaster relief (PPDR) forces and disaster victims. The wireless communication infrastructure is expected to be partially or fully damaged in the disaster area, resulting in an unknown radio environment. In our approach, the...
In this paper we apply approximate and multiscale entropy metrics to spectrum occupancy data gathered during an extensive measurement campaign. We show that the presented methods can be successfully applied to search for and quantify structures of highly varying complexities and time scales. Although structures can be found they are unfortunately relatively complex and it does not appear to be easy...
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