Analysis of detection performance in spectrum sensing optimisation for long sensing periods
Chang, Kevin, Senadji, Bouchra, & Chandran, Vinod (2011) Analysis of detection performance in spectrum sensing optimisation for long sensing periods. In Pahlavan, Kaveh & Dkukic, Petar (Eds.) Proceedings of 22nd IEEE International Symposium of Personal Indoor Mobile Radio Communications, IEEE, Westin Harbour Castle, Toronto, pp. 457-461.
Spectrum sensing optimisation techniques maximise the efficiency of spectrum sensing while satisfying a number of constraints. Many optimisation models consider the possibility of the primary user changing activity state during the secondary user's transmission period. However, most ignore the possibility of activity change during the sensing period. The observed primary user signal during sensing can exhibit a duty cycle which has been shown to severely degrade detection performance. This paper shows that (a) the probability of state change during sensing cannot be neglected and (b) the true detection performance obtained when incorporating the duty cycle of the primary user signal can deviate significantly from the results expected with the assumption of no such duty cycle.
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|Item Type:||Conference Paper|
|Keywords:||Spectrum Sensing, Cognitive Radio (CR), Spectrum Sensing Optimisation, Energy Detector|
|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:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
|Copyright Owner:||Copyright 2011 IEEE|
|Copyright Statement:||Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.|
|Deposited On:||04 Jul 2011 03:42|
|Last Modified:||18 Oct 2011 02:52|
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