IEEE 1900.6: spectrum sensing interfaces and data structures for dynamic spectrum access and other advanced radio communication systems standard: technical aspects and future outlook

2011 ◽  
Vol 49 (12) ◽  
pp. 118-127 ◽  
Author(s):  
Maurizio Murroni ◽  
R. Venkatesha Prasad ◽  
Paulo Marques ◽  
Bernd Bochow ◽  
Dominique Noguet ◽  
...  
Keyword(s):  
Spectrum Sensing ◽  
Data Structures ◽  
Communication Systems ◽  
Dynamic Spectrum Access ◽  
Dynamic Spectrum ◽  
Spectrum Access ◽  
Radio Communication ◽  
Future Outlook ◽  
Technical Aspects

Cognitive Radio Networks

2016 ◽  
pp. 131-159 ◽  
Author(s):  
Deepti Singhal ◽  
Chandan Pradhan ◽  
Kunal Sankhe ◽  
Rama Murthy Garimella
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Communication Systems ◽  
Dynamic Spectrum Access ◽  
Radio Networks ◽  
Dynamic Spectrum ◽  
Point Of View ◽  
Spectrum Access ◽  
Radio Communication ◽  
Increasing Demand

The ever increasing demand for communication bandwidth has led to spectrum scarcity. We need to manage spectrum as a scare resource. Better utilization of spectrum is the key requirement for the radio communication systems. The inefficient usage of the existing spectrum can be improved through opportunistic access to the licensed bands without interfering with the primary users. This introduces the concept of dynamic spectrum access. Cognitive radio is must for providing quality of service in dynamic spectrum access. To deal with the cognition at physical layer, upper layers are also modified to support cognition and adaptation which make a network cognitive network. This book chapter describes the technical challenges and approaches for cognitive radio networks. Spectrum access models from regulatory point of view are presented. It also explains the challenges and solutions from literature for physical, MAC and network layer of cognitive networks. In the end of the chapter, real hope for designing protocols for such networks, i.e. cross layer protocol design is discussed.

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