Multi-Node Spectrum Sensing Based on a Novel Dempster-Shafer Theory
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
Publication date: 01 March 2012
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