abstract

• The cognitive radio technology is a promising solution to solve the scarcity problem of electromagnetic spectrum caused by the increase in the demand of wireless communications. Throughout the world, several measurement campaigns have been conducted to determine the real occupancy of the spectrum. In several countries, including Mexico, these measurements have not been realized yet. In this paper, we present results of the spectral power and duty cycle of the first measurement campaign conducted in the city of San Luis Potosi and in Mexico. The frequencies of interest considered in this study lies within the range of 30 MHz to 910 MHz. In order to improve the system sensitivity, the measurements were made with a directional antenna considering the four cardinal points. The study measures the power spectrum for 7.5 hours on a weekday. The results clearly show the critical underutilization of the spectrum in our country since it show an average duty cycle of 12.5%25 in the above mentioned frequency range. Copyright © 2013 by the Institute of Electrical and Electronic Engineers, Inc.

authors

• Aguilar-Gonzalez R.
• Cárdenas Juárez Marco Aurelio
• Pineda Rico Ulises
• Stevens Navarro Enrique

publication date

• 2013-01-01

published in

• IEEE Vehicular Technology Conference  Journal

keywords

• Cognitive radio technologies; Directional Antenna; Electromagnetic spectra; Frequency ranges; Measurement campaign; Spectrum occupancies; System sensitivity; Wireless communications; Directive antennas; Wireless telecommunication systems

Digital Object Identifier (DOI)

• 10.1109/VTCFall.2013.6692420

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