| Texto completo | |
| Autor(es): |
Fundora, Alfredo Jesus Arbolaez
;
Gustavo Barros Guedes, Luiz
;
Adionel Guimaraes, Dayan
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | IEEE ACCESS; v. 14, p. 16-pg., 2026-01-01. |
| Resumo | |
Existing approaches to overlay dynamic spectrum access (DSA) typically enable spectrum sharing only when the primary transmitter is inactive. However, accurately geolocating vacant bands is essential for supporting spectrum reuse even when the primary transmitter remains active. This study proposes and validates a geolocation strategy based on non-cooperative spectrum sensing within a database-driven Internet-of-Things framework. The method employs scattered sensors that perform individual detections, whose binary decisions are mapped into space through Voronoi partitioning and refined using an adaptive spatial interpolation logic. Simulation results demonstrate that the approach achieves a high spectrum-hole geolocation detection rate with low variance. Compared to cooperative spectrum sensing, the proposed strategy offers superior spatial fidelity while significantly reducing communication overhead, establishing itself as a simpler and more scalable solution for cognitive radio networks. (AU) | |
| Processo FAPESP: | 22/09319-9 - Centro de Ciência para o Desenvolvimento em Agricultura Digital - CCD-AD/SemeAr |
| Beneficiário: | Silvia Maria Fonseca Silveira Massruhá |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Ciência para o Desenvolvimento |
| Processo FAPESP: | 20/05127-2 - SAMURAI: núcleo 5G inteligente e integração de múltiplas redes de acesso |
| Beneficiário: | Aldebaro Barreto da Rocha Klautau Junior |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |