spetrum sensing survey
Abstract—Thespectrumsensingproblemhasgainednewaspectswithcognitiveradioandopportunisticspectrumaccessconcepts.Itisoneofthemostchallengingissuesincognitiveradiosystems.Inthispaper,asurveyofspectrumsensingmethodologiesforcognitiveradioispresented.
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