Measurement and Analysis of Wideband Spectrum Utilization in Indoor and Outdoor Environments

Spectrum awareness is an essential part of Cognitive Radio (CR) systems that enables CR systems to intelligently utilise the spectrum. Accurate modeling of spectrum utilization is crucial for the development and performance evaluation of such systems. In this paper, a wideband spectrum occupancy measurement campaign is conducted to study the utilization of RF spectrum in indoor and outdoor environments simultaneously. The measurements are performed in the 700-3000 MHz frequency band over three consecutive days at an indoor and an outdoor location concurrently. The measurement results show that spectrum utilization in indoor and outdoor environments is significantly different and these differences are quantified. The measurement results suggest the integration of location information to the dynamic spectrum access methods. Keywordscognitive radio, spectrum occupancy, measurement, indoor, outdoor environments.

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