COGNITIVE RADIOS FOR DYNAMIC SPECTRUM ACCESS - The Throughput Potential of Cognitive Radio: A Theoretical Perspective

2007 ◽  
Vol 45 (5) ◽  
pp. 73-79 ◽  
Author(s):  
Sudhir Srinivasa ◽  
Syed Jafar
Keyword(s):  
Cognitive Radio ◽  
Dynamic Spectrum Access ◽  
Theoretical Perspective ◽  
Cognitive Radios ◽  
Dynamic Spectrum ◽  
Spectrum Access

Cognitive Radio as Enabling Technology for Dynamic Spectrum Access

2013 ◽  
Vol 347-350 ◽  
pp. 1716-1719 ◽  
Author(s):  
Nai Qi Wei ◽  
Zi Li Chen
Keyword(s):  
Cognitive Radio ◽  
Dynamic Spectrum Access ◽  
Cognitive Radios ◽  
Dynamic Spectrum ◽  
Communication Link ◽  
Spectrum Access ◽  
Enabling Technology ◽  
Communication Techniques ◽  
Free Spectrum ◽  
Spectrum Scarcity

Frequency spectrum scarcity is currently one of the mostly discussed topics in wireless communications. When there is no free spectrum available, no new broadband communication techniques can be put into operation. The double use of already assigned frequencies leads to interferences. A possible solution to the problem is Dynamic Spectrum Access (DSA), realized through Cognitive Radio (CR) technology. Cognitive Radios have the ability to detect unused spectrum segments and to adapt to it dynamically. This adaptation does not only concern a change of frequency, but may also include changes in waveform, bandwidth, or whatever leads to an optimal communication link. This paper gives an overview of the state-of-the-art Cognitive Radio approaches and points out opportunities offered by this technology to overcome the threat of spectrum scarcity.

Orthogonal codes-based dynamic spectrum access in cognitive radio networks

2019 ◽  
Vol 16 (12) ◽  
pp. 34-46
Author(s):  
Ehab F. Badran ◽  
Amr A. Bashir ◽  
Amira I. Zaki ◽  
Waleed K. Badawi
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Dynamic Spectrum Access ◽  
Radio Networks ◽  
Dynamic Spectrum ◽  
Spectrum Access ◽  
Orthogonal Codes

scholarly journals Dynamic Spectrum Access in Cognitive Radio: An MDP Approach

10.5772/36083 ◽  
2012 ◽  
Author(s):  
Juan J. ◽  
Mario Torrecillas-Rodrguez ◽  
Luis Pastor-Gonzlez ◽  
Javier Vales-Alonso
Keyword(s):  
Cognitive Radio ◽  
Dynamic Spectrum Access ◽  
Dynamic Spectrum ◽  
Spectrum Access

Dynamic spectrum access: from cognitive radio to network radio

2012 ◽  
Vol 19 (1) ◽  
pp. 23-29 ◽  
Author(s):  
Min Song ◽  
Chunsheng Xin ◽  
Yanxiao Zhao ◽  
Xiuzhen Cheng
Keyword(s):  
Cognitive Radio ◽  
Dynamic Spectrum Access ◽  
Dynamic Spectrum ◽  
Spectrum Access
Sign in / Sign up

Export Citation Format

Share Document