Modeling and simulation of joint time-frequency properties of spectrum usage in cognitive radio

  • Authors:

  • Miguel López-Benítez;Fernando Casadevall;David López-Pérez;Athanasios V. Vasilakos

  • Affiliations:

  • Universitat Politècnica de Catalunya (UPC);Universitat Politècnica de Catalunya (UPC);Centre for Telecommunications Research, King's College London;University of Western, Macedonia

  • Venue:
  • Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management
  • Year:
  • 2011

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Abstract

The development of the Dynamic Spectrum Access/Cognitive Radio (DSA/CR) technology can significantly benefit from the availability of realistic models able to accurately capture and reproduce the statistical properties of spectrum usage in real wireless communication systems. Relying on field measurements of real systems, this paper analyzes the joint time-frequency statistical properties of spectrum usage and develops adequate models describing the observed characteristics. Based on such models, a sophisticated method is also proposed to generate artificial spectrum data for simulation or other purposes. The proposed method is able to accurately reproduce the statistical time-frequency characteristics of spectrum usage in real systems.