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Citació: López, M.; Casadevall, F. Spectrum occupancy in realistic scenarios and duty cycle model for cognitive radio. "Advances in Electronics and Telecommunications, Special Issue on Radio Communication Series: Recent Advances and Future Trends in Wireless Communication", Abril 2010, vol. 1, núm. 1, p. 1-9.
Títol: Spectrum occupancy in realistic scenarios and duty cycle model for cognitive radio
Autor: López Benítez, Miguel Veure Producció científica UPC; Casadevall Palacio, Fernando José Veure Producció científica UPC
Data: abr-2010
Tipus de document: Article
Resum: Most of the spectrum occupancy measurement campaigns performed to the date in the context of cognitive radio are based on measurements in outdoor high points such as building roofs, balconies and towers. Although these measurement scenarios enable a more accurate estimation of the primary transmitters’ spectral activity, they may not be representative of the spectrum occupancy perceived by a cognitive radio user in many other interesting practical situations where users are not placed in a static high point. In this context, this work presents the results obtained in a spectrum measurement campaign performed over a rich diversity of measurement scenarios of practical interest. The considered scenarios include not only high points but also indoor environments as well as outdoor locations at the ground level in open areas and between buildings. The variety of considered measurement scenarios provides a broader view and understanding of dynamic spectrum occupancy under different practical scenarios of interest. The impact of considering various locations on the spectral activity perceived by a cognitive radio user is determined, analyzed and quantified. Moreover, a theoretical model for the occupancy levels observed at different locations is developed and verified with the obtained results.
URI: http://hdl.handle.net/2117/8139
Apareix a les col·leccions:GRCM - Radio Communication Research Group. Articles de revista
Departament de Teoria del Senyal i Comunicacions. Articles de revista
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