An adaptive threshold method for spectrum sensing in multi-channel cognitive radio networks

Ali Gorcin, Khalid A. Qaraqe, Hasari Celebi, Huseyin Arslan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

46 Citations (Scopus)

Abstract

Opportunistic spectrum access feature of cognitive radio systems is a method to improve frequency underutilization of wireless spectrum. One of the techniques for detecting the unused bands is the energy detection for which selection of the threshold defines detection performance. In this paper, the adaptive threshold method is proposed as an alternative approach to estimate the threshold as a function of first and second order statistics of recorded signals. The proposed method does not require estimation of noise variance or signal to noise ratio and aims to minimize the effects of impairments introduced by wireless channel and non-stationary noise. The simulation results indicate that adaptive threshold has low false alarm and missed detection rates that can satisfy the detection requirements of multi-channel cognitive radios for either narrow or wideband spectrum sensing, when the standard deviation coefficient is selected properly.

Original languageEnglish
Title of host publicationICT 2010
Subtitle of host publication2010 17th International Conference on Telecommunications
Pages425-429
Number of pages5
DOIs
Publication statusPublished - 19 Jul 2010
Event2010 17th International Conference on Telecommunications, ICT 2010 - Doha, Qatar
Duration: 4 Apr 20107 Apr 2010

Publication series

NameICT 2010: 2010 17th International Conference on Telecommunications

Other

Other2010 17th International Conference on Telecommunications, ICT 2010
CountryQatar
CityDoha
Period4/4/107/4/10

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ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Gorcin, A., Qaraqe, K. A., Celebi, H., & Arslan, H. (2010). An adaptive threshold method for spectrum sensing in multi-channel cognitive radio networks. In ICT 2010: 2010 17th International Conference on Telecommunications (pp. 425-429). [5478783] (ICT 2010: 2010 17th International Conference on Telecommunications). https://doi.org/10.1109/ICTEL.2010.5478783