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Multi-Node Spectrum Sensing Based on a Novel Dempster-Shafer Theory

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Abstract:

In this paper, a novel and more efficient Dempster-Shafer (D-S) evidence theory multi-node spectrum sensing based on double threshold judgment is proposed. A specific coordinate operation of D-S theory algorithm and double threshold judgment is discussed. It defines the uncertain area in double threshold detection, controls the application range of D-S theory and obtains the final detection results by drawing a clear line between data decision and information fusion. A better performance and higher sensing efficiency in a low signal-to-noise ratio is resulted according to the simulations.

Keywords: DEMPSTER-SHAFER; DOUBLE THRESHOLD; ENERGY DETECTION; MULTI-NODE; SPECTRUM SENSING

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/asl.2012.2297

Publication date: March 1, 2012

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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