Cluster-based spectrum sensing for cognitive radios with imperfect channel to cluster-head

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.

Citation
Ben Ghorbel, M., Nam, H., & Alouini, M.-S. (2012). Cluster-based spectrum sensing for cognitive radios with imperfect channel to cluster-head. 2012 IEEE Wireless Communications and Networking Conference (WCNC). doi:10.1109/wcnc.2012.6214462

Publisher
Institute of Electrical and Electronics Engineers (IEEE)

Journal
2012 IEEE Wireless Communications and Networking Conference (WCNC)

Conference/Event Name
2012 IEEE Wireless Communications and Networking Conference, WCNC 2012

DOI
10.1109/WCNC.2012.6214462

Permanent link to this record