Cluster-based cooperative spectrum sensing in cognitive radio systems

Chunhua Sun, Wei Zhang, Khaled Letaief

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

323 Citations (Scopus)

Abstract

In cognitive radio systems, secondary users can be coordinated to perform cooperative spectrum sensing so as to detect the primary user more accurately. However, when the sensing observations are forwarded to a common receiver through fading channels, the sensing performance can be severely degraded. In this paper, we propose a cluster-based cooperative spectrum sensing method to improve the sensing performance. By separating all the secondary users into a few clusters and selecting the most favorable user in each cluster to report to the common receiver, the proposed method can exploit the user selection diversity so that the sensing performance can be enhanced. Furthermore, decision fusion and energy fusion are both studied and the analytical performance results are given. Numerical results show that the sensing performance is improved significantly as opposed to conventional spectrum sensing.

Original languageEnglish
Title of host publication2007 IEEE International Conference on Communications, ICC'07
Pages2511-2515
Number of pages5
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2007 IEEE International Conference on Communications, ICC'07 - Glasgow, Scotland, United Kingdom
Duration: 24 Jun 200728 Jun 2007

Other

Other2007 IEEE International Conference on Communications, ICC'07
CountryUnited Kingdom
CityGlasgow, Scotland
Period24/6/0728/6/07

Fingerprint

Radio systems
Cognitive radio
Fusion reactions
Fading channels

ASJC Scopus subject areas

  • Media Technology

Cite this

Sun, C., Zhang, W., & Letaief, K. (2007). Cluster-based cooperative spectrum sensing in cognitive radio systems. In 2007 IEEE International Conference on Communications, ICC'07 (pp. 2511-2515). [4289086] https://doi.org/10.1109/ICC.2007.415

Cluster-based cooperative spectrum sensing in cognitive radio systems. / Sun, Chunhua; Zhang, Wei; Letaief, Khaled.

2007 IEEE International Conference on Communications, ICC'07. 2007. p. 2511-2515 4289086.

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

Sun, C, Zhang, W & Letaief, K 2007, Cluster-based cooperative spectrum sensing in cognitive radio systems. in 2007 IEEE International Conference on Communications, ICC'07., 4289086, pp. 2511-2515, 2007 IEEE International Conference on Communications, ICC'07, Glasgow, Scotland, United Kingdom, 24/6/07. https://doi.org/10.1109/ICC.2007.415
Sun C, Zhang W, Letaief K. Cluster-based cooperative spectrum sensing in cognitive radio systems. In 2007 IEEE International Conference on Communications, ICC'07. 2007. p. 2511-2515. 4289086 https://doi.org/10.1109/ICC.2007.415
Sun, Chunhua ; Zhang, Wei ; Letaief, Khaled. / Cluster-based cooperative spectrum sensing in cognitive radio systems. 2007 IEEE International Conference on Communications, ICC'07. 2007. pp. 2511-2515
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