Geolocation of Vacant Bands for Dynamic Spectrum Access via Non-Cooperative Spectrum Sensing

Alfredo Jesús A Fundora, Luiz Gustavo B. Guedes, Dayan A. Guimarães

DOI: 10.14209/sbrt.2025.1571157190

Evento: XLIII Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2025)

Keywords: Dynamic spectrum access spectrum sensing spectrum hole geolocation internet of things

Abstract

Accurate geolocation of vacant bands is an essential metric to timely and secure channel use in dynamic spectrum access systems. Non-cooperative spectrum sensing (NCSS) offers a promising solution by directly linking sensing decisions to sensor locations. This study employs NCSS within a database-driven internet of things framework, where scattered sensors perform individual detections and their positions are gathered via Voronoi-based spatial interpolation. Results show that high geolocation accuracy and low variance can be achieved even under unfavorable propagation conditions, supporting efficient and reliable spectrum use.

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