Optimal cooperative spectrum sensing over composite fading channels

Bassant Selim, Omar Alhussein, George K. Karagiannidis, Sami Muhaidat

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

In this paper, we study cooperative spectrum sensing over composite fading channels. First, we consider the Mixture of Gaussian distribution to model the composite channel statistics and derive a simple generic approximation for the average probability of detection which can be efficiently applied to any composite fading channel. Second, we derive the optimal voting rule for hard combining in cooperative spectrum sensing over composite fading channels. In particular, we derive an exact closed form expression for the optimal decision fusion rule (k-out-of-N) that minimizes the total sensing error in cognitive radio networks (CRNs). This expression enjoys both simplicity and generality, making it applicable to any CRN, regardless of the channel considered. Numerical results validate the proposed analysis and show that the proposed combining rule efficiently minimizes the CRN's total error and significantly outperforms the AND, OR and majority rules that are usually considered.

Original languageBritish English
Title of host publication2015 IEEE International Conference on Communication Workshop, ICCW 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages520-525
Number of pages6
ISBN (Electronic)9781467363051
DOIs
StatePublished - 8 Sep 2015
EventIEEE International Conference on Communication Workshop, ICCW 2015 - London, United Kingdom
Duration: 8 Jun 201512 Jun 2015

Publication series

Name2015 IEEE International Conference on Communication Workshop, ICCW 2015

Conference

ConferenceIEEE International Conference on Communication Workshop, ICCW 2015
Country/TerritoryUnited Kingdom
CityLondon
Period8/06/1512/06/15

Keywords

  • Composite fading channels
  • cooperative spectrum sensing
  • hard combining
  • optimal voting rule
  • probability of detection

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