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<p>This thesis implements spectrum sensing and localization tasks using a radio  frequency sensor network and analyzes the performance of this implementation through  simulation. A sensor network based cooperative wideband spectrum sensing and  localization scheme is proposed for the implementation of the tasks. In the proposed  scheme, wavelet-based multi-resolution spectrum sensing and received signal strengthbased  localization methods, which were originally proposed for cognitive radio  applications, are adapted to radio frequency sensor networks. For cooperation of the  nodes in the proposed scheme, a new three-bit hard combination technique is developed.  A simulation model is created in MATLAB programming language to implement the  proposed scheme and to analyze its simulation performance. The results of the  simulation show that the proposed sensor network based cooperative wideband spectrum  sensing and localization scheme is appropriate for radio frequency sensor networks and  the proposed three-bit hard combination scheme is superior to the traditional hard  combination schemes in terms of false alarm reduction.
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<br>Subjects: Electrical engineering; Electronics in military engineering</div>
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SoÌ nmezer, Volkan</div>
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