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Design of Asynchronous Cooperative Spectrum Sensing Scheme and Wideband Dynamic Spectrum Access Algorithm for Cognitive Radio Networks Open Access


Other title
Cognitive Radio
Dynamic Spectrum Access
Cooperative Spectrum Sensing
Type of item
Degree grantor
University of Alberta
Author or creator
Jiang, Chunxing
Supervisor and department
Tsui, Ying (Electrical and Computer Engineering)
Examining committee member and department
Elmallah, Ehab (Computing Science)
Tsui, Ying (Electrical and Computer Engineering)
Fair, Ivan (Electrical and Computer Engineering)
Khabbazian, Majid (Electrical and Computer Engineering)
Department of Electrical and Computer Engineering
Date accepted
Graduation date
Master of Science
Degree level
Dynamic spectrum access (DSA) is a promising solution for mitigating the problem of crowded radio spectrum and enhancing the utilization efficiency of spectrum resources, making it a hot research topic. In DSA, spectrum sensing is crucial and cooperative spectrum sensing (CSS) is confirmed as a promising technology that can combat the wireless channel fading problem. Most current works have assumed that secondary users (SUs) are synchronous with the primary users’ (PUs) network. However, on one hand, the SUs may not have information about the PUs’ communication protocols. On the other hand, communications among PUs are not based on synchronous operation in some systems. In order to address such problems, an asynchronous CSS scheme is proposed. Based on this scheme, the DYWAMIT, a contention-based wideband DSA algorithm, is proposed. Performance analysis and simulations are conducted to evaluate the proposed scheme and algorithm. Some important future research challenges are highlighted.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication
Chunxing Jiang, N. C. Beaulieu, and C. Jiang, “A novel asynchronous cooperative spectrum sensing scheme,” in Proc. IEEE Int. Conf. Commun. (ICC), Budapest, Hungary, Jun.9–13, 2013, pp. 1–6.Chunxing Jiang, C. Jiang, and N. C. Beaulieu, “A contention-based wideband DSA algorithm with asynchronous cooperative spectrum sensing,” in Proc. IEEE Globecom Commun. Conf. (GLOBECOM), Atlanta, GA, USA, Dec.9–13, 2013, pp. 1–6.

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