Channel Availability Assessment for Cognitive Radios

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

Abstract

This work addresses two problems related with the assessment of channel availability for cognitive radio systems. We start to characterize the performance of an energy detector for the case when PUs can change their state during the sensing period. The theoretical performance is validated through simulations and compared with a theoretical model where the PUs’ state remains constant during the sensing period. The second point addressed in this work is the characterization of the channel availability, which is based on the output of the energy detector weighted by the probabilities of detection or false alarm computed in real-time. Several scenarios were evaluated and for each scenario the channel availability was correctly assessed by the SUs.
Original languageUnknown
Title of host publicationIFIP Advances in Information and Communication Technology
Pages495-504
Volume394
ISBN (Electronic)978-3-642-37291-9
DOIs
Publication statusPublished - 1 Jan 2013
Event4th Doctoral Conf. on Computing, Electrical and Industrial Systems (DoCEIS’13) -
Duration: 1 Jan 2013 → …

Conference

Conference4th Doctoral Conf. on Computing, Electrical and Industrial Systems (DoCEIS’13)
Period1/01/13 → …

Cite this

Dinis, R. M. H. D. M., Oliveira, R. A. D., Bernardo, L. F. L., & DEE Group Author (2013). Channel Availability Assessment for Cognitive Radios. In IFIP Advances in Information and Communication Technology (Vol. 394, pp. 495-504) https://doi.org/10.1007/978-3-642-37291-9_53