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Efficient utility of radio spectrum has been a hot topic as the wirelesscommunication spectrum is a precious resource. The past decade has witnessedintensive research in spectrum sharing techniques. Most of the techniques arebased on cognitive radio networks (CRNs) because cognitive capabilities areessential for optimizing spectrum efficiency and guaranteeing safe coexistencein the presence of the spectrum uncertainty. However, due to the highcomplexity of the problem, most research has been limited to theoreticalanalysis. It is non-trivial to build a simulator that is capable of carryingout a comprehensive experimental study. In this paper, a survey is conducted toprovide a big picture of the available simulators in CRNs research. Byillustrating their major functionalities, the insight enables researchers toselect tools that match their needs. In addition, with a better understandingof the advantages and constraints, this survey aims at providing a guidelinefor simulator designers who have been trying to meet the requirements from theCRN research community.

A Survey on Simulation Tools and Testbeds for Cognitive Radio Networks Study