Access to radio spectrum is presently regulated either as licensed, where the rights to use specific spectral bands are granted in exclusivity to an individual operator, or as unlicensed, where certain spectral bands are declared open for free use by any operator or individual following specific rules. While these paradigms have allowed the wireless communications sector to blossom in the past, there is much talk recently about the so–called “cognitive radio” paradigm, wherein spectrum may be efficiently shared in a more flexible fashion by a number of operators/users/systems. Cognitive radio can be thus viewed as an enabling technology that will benefit several types of players, by introducing new communications and networking models for the whole wireless world, creating better business opportunities for the incumbent operators and new technical dimensions for smaller operators, and helping shape an overall more efficient approach regarding spectrum requirements and usage in next generation wireless networks. <b>Keywords:</b> • Cognitive radio system architectures<br>• Platforms and hardware implementations for the support of cognitive radio systems<br>• Multi–band, spectrum–agile and adaptive radio transceivers<br>• Cognitive radio resource management and dynamic spectrum sharing<br>• Signal detection and interference avoidance (management/algorithms)<br>• Spectral estimation and radio environment characterization<br>• Efficient spectrum utilization<br>• Soft–Spectrum adaptation technology<br>• Radio access protocols and algorithms for the PHY, MAC and Network layer<br>• Cross–layer cognitive algorithms<br>• Software defined radio systems<br>• Ultra–Wideband (UWB) cognitive radio systems<br>• Cognitive impulse radio systems<br>• Bio–inspired cognitive radio<br>• Linear network coding, cooperative coding and MIMO techniques for cognitive radio<br>• Self–organizing mesh networks and autonomic communications<br>• Wireless network co–existence<br>• Heterogeneous radio networks<br>• Simulation, analytical modeling and measurement of cognitive wireless networks<br>• Testbed for cognitive radio<br>• Applications of cognitive wireless networks<br>
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CROWNCOM
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Mykonos Island
Country
Greece
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