EngineeringCommunicationElectrical EngineeringDigital CommunicationWireless CommunicationsCognitive RadioInterference ManagementSpectrum AllocationSpectrum ManagementWireless Communication ProtocolsWireless NetworksCognitive Radio Interference ManagementCognitive Radio NetworksCognitive Radio Resource AllocationEfficient Resource UseOpportunistic Spectrum AccessSpectrum Access ProtocolsSpectrum SensingWireless Spectrum Management
Wireless spectrum is a scarce, valuable resource that is unused for much of the time. The article looks at whether cognitive radio can put an end to this apparent paradox. Communications devices that work out for themselves which frequencies and protocols to use will help make more efficient use of the radio spectrum.