QUT ePrints

Spectrum sensing using two-stage detection to compensate for reduced primary user duty cycle

Chang, Kevin & Senadji, Bouchra (2012) Spectrum sensing using two-stage detection to compensate for reduced primary user duty cycle. In Proceedings of the 4th IET International Conference on Wireless, Mobile and Multimedia Networks 2011, IEEE, Beijing, pp. 149-154.

View at publisher

Abstract

Spectrum sensing is considered to be one of the most important tasks in cognitive radio. One of the common assumption among current spectrum sensing detectors is the full presence or complete absence of the primary user within the sensing period. In reality, there are many situations where the primary user signal only occupies a portion of the observed signal and the assumption of primary user duty cycle not necessarily fulfilled. In this paper we show that the true detection performance can degrade from the assumed achievable values when the observed primary user exhibits a certain duty cycle. Therefore, a two-stage detection method incorporating primary user duty cycle that enhances the detection performance is proposed. The proposed detector can improve the probability of detection under low duty cycle at the expense of a small decrease in performance at high duty cycle.

Impact and interest:

0 citations in Scopus
Search Google Scholar™

Citation countsare sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 50954
Item Type: Conference Paper
DOI: 10.1049/cp.2011.0978
ISBN: 9781849195072
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Signal Processing (090609)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > OTHER ENGINEERING (099900)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 19 Jun 2012 08:27
Last Modified: 13 Jun 2013 00:51

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page