Performance evaluation of centralized and decentralized cooperative spectrum sensing in cognitive radio networks

Azila Zakaria, Mohammad Tahir, Nordin Ramli, Hafizal Mohamad, Mahamod Ismail

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

6 Citations (Scopus)

Abstract

Spectrum sensing is one of the critical aspects in cognitive radio (CR). CR user must be able to detect the spectrum opportunity reliably and efficiently in order to use the available spectrum. In spectrum sensing, a local radio might fail to monitor the available spectrum holes due to shadowing and hidden terminal problem. Cooperative spectrum sensing can be employed to combat this problem using two approaches; centralized and decentralized (distributed) system. In this paper, we evaluate the performance of both centralized and decentralized cooperative spectrum sensing under several policies; OR and AND rules based on energy detection. The effectiveness of the both centralized and decentralized techniques were investigated and compared in terms of probability of detection and signal-to-noise ratio (SNR). We observe that the OR rule achieve better performance than AND rule in attaining higher detection probability.

Original languageEnglish
Title of host publication2012 International Conference on Computer and Communication Engineering, ICCCE 2012
Pages283-288
Number of pages6
DOIs
Publication statusPublished - 2012
Event2012 International Conference on Computer and Communication Engineering, ICCCE 2012 - Kuala Lumpur
Duration: 3 Jul 20125 Jul 2012

Other

Other2012 International Conference on Computer and Communication Engineering, ICCCE 2012
CityKuala Lumpur
Period3/7/125/7/12

Fingerprint

Cognitive radio
radio
local radio
evaluation
performance
Signal to noise ratio
energy

Keywords

  • centralized
  • Cognitive radio
  • cooperative spectrum sensing
  • decentralized
  • distributed
  • energy detector

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

Cite this

Zakaria, A., Tahir, M., Ramli, N., Mohamad, H., & Ismail, M. (2012). Performance evaluation of centralized and decentralized cooperative spectrum sensing in cognitive radio networks. In 2012 International Conference on Computer and Communication Engineering, ICCCE 2012 (pp. 283-288). [6271197] https://doi.org/10.1109/ICCCE.2012.6271197

Performance evaluation of centralized and decentralized cooperative spectrum sensing in cognitive radio networks. / Zakaria, Azila; Tahir, Mohammad; Ramli, Nordin; Mohamad, Hafizal; Ismail, Mahamod.

2012 International Conference on Computer and Communication Engineering, ICCCE 2012. 2012. p. 283-288 6271197.

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

Zakaria, A, Tahir, M, Ramli, N, Mohamad, H & Ismail, M 2012, Performance evaluation of centralized and decentralized cooperative spectrum sensing in cognitive radio networks. in 2012 International Conference on Computer and Communication Engineering, ICCCE 2012., 6271197, pp. 283-288, 2012 International Conference on Computer and Communication Engineering, ICCCE 2012, Kuala Lumpur, 3/7/12. https://doi.org/10.1109/ICCCE.2012.6271197
Zakaria A, Tahir M, Ramli N, Mohamad H, Ismail M. Performance evaluation of centralized and decentralized cooperative spectrum sensing in cognitive radio networks. In 2012 International Conference on Computer and Communication Engineering, ICCCE 2012. 2012. p. 283-288. 6271197 https://doi.org/10.1109/ICCCE.2012.6271197
Zakaria, Azila ; Tahir, Mohammad ; Ramli, Nordin ; Mohamad, Hafizal ; Ismail, Mahamod. / Performance evaluation of centralized and decentralized cooperative spectrum sensing in cognitive radio networks. 2012 International Conference on Computer and Communication Engineering, ICCCE 2012. 2012. pp. 283-288
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