The general scope of this journal special issue includes, but is not limited to, the following topics:
Spectrum sensing algorithm and white space modeling
Spectrum sharing architecture and mechanism
Spectrum-efficient design
Dynamic spectrum management
Spectrum pricing, auction and trading
Game theory for dynamic spectrum access
Spectrum mobility control
Reconfigurable wireless platforms
Medium access control design for cognitive radio networks
Spectrum agile and adaptive routing
Security of wireless systems in the context of spectrum sharing
Interference analysis, measurements and statistical models of spectrum usage
Coexistence with legacy wireless systems
Novel radio architectures and antennas
Simulation tools, testbeds, hardware and software prototypes
Regulation and standardization.