Journal of System Simulation ›› 2017, Vol. 29 ›› Issue (10): 2330-2335.doi: 10.16182/j.issn1004731x.joss.201710014

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Modeling of Spectrum Sensing Energy Consumption in Cognitive Radio Networks

Cui Ziru, Peng Yi   

  1. Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, China
  • Received:2015-10-08 Published:2020-06-04

Abstract: In cognitive radio networks, the energy consumption in the process of spectrum sensing is the hot spot of research. A unified framework for modeling based on Poisson process was developed which could be used even under interference limited to count the energy consumption, thereby obtaining a spectrum sensing energy consumption. Spectrum sensing energy as the function of the number of secondary users in cognitive radio networks, their spatial density and the number of hops, could be modelled as a truncated gamma distribution. This model is used to statistically analyze cognitive users' energy consumption in the process of spectrum sensing under the circumstance of temporal perception, spatial perception and temporal - spatial joint perception. Simulation and analysis results show that the model is of scientific rationality.

Key words: gamma distribution, radio spectrum, sensing energy, statistical modeling

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