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Cluster-based spectrum sensing for cognitive radios with imperfect channel to cluster-head
- Issue Date
- Apr-2012
- Publisher
- IEEE
- Keywords
- Local decisions; Cluster head; False alarms; Cognitive radio; Sensing performance; Errors; Channel conditions; Spectrum sensing; Cooperative spectrum sensing; Wireless telecommunication systems; Fusion center; Miss-detection; Closed-form expression; Clust
- Citation
- IEEE Wireless Communications and Networking Conference, WCNC, v.2012, pp 709 - 713
- Pages
- 5
- Indexed
- SCOPUS
- Journal Title
- IEEE Wireless Communications and Networking Conference, WCNC
- Volume
- 2012
- Start Page
- 709
- End Page
- 713
- ISSN
- 1525-3511
1558-2612
- Abstract
- Spectrum sensing is considered as the first and main step for cognitive radio systems to achieve an efficient use of spectrum. Cooperation and clustering among cognitive radio users are two techniques that can be employed with spectrum sensing in order to improve the sensing performance by reducing miss-detection and false alarm. In this paper, within the framework of a clustering-based cooperative spectrum sensing scheme, we study the effect of errors in transmitting the local decisions from the secondary users to the cluster heads (or the fusion center), while considering non-identical channel conditions between the secondary users. Closed-form expressions for the global probabilities of detection and false alarm at the cluster head are derived. © 2012 IEEE.
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Related Researcher
- Nam, Hae woon
- ERICA 공학대학 (SCHOOL OF ELECTRICAL ENGINEERING)