A Novel Method for QoS-Based Spectrum Allocation in Cognitive Radio Systems

2016 ◽  
pp. 301-308
Author(s):  
Aswathi R. Nair ◽  
E Govindaraj
Keyword(s):  
Cognitive Radio ◽  
Spectrum Allocation ◽  
Cognitive Radio Systems ◽  
Novel Method ◽  
Radio Systems

scholarly journals Recent Advances on Radio-Frequency Design in Cognitive Radio

2016 ◽  
Vol 2016 ◽  
pp. 1-16 ◽  
Author(s):  
H. M. El Misilmani ◽  
M. Y. Abou-Shahine ◽  
Y. Nasser ◽  
K. Y. Kabalan
Keyword(s):  
Cognitive Radio ◽  
Radio Frequency ◽  
Spectrum Allocation ◽  
Wireless Technologies ◽  
Mobile Data ◽  
Recent Advances ◽  
Wide Range ◽  
Cognitive Radio Systems ◽  
Radio Systems

With the growth of mobile data applications, the spectrum allocation is becoming very scarce. To ease congestion and boost speeds, cognitive radio (CR) is currently seen as a major solution and expected to be the key player in the new wireless technologies. In this paper, we will start by introducing the cognitive radio systems, followed by exploring the challenges in designing RF engine, along with an investigation of its antennas, amplifiers, oscillators, and the components that are expected to operate over a wide range of frequencies.

Achievable Capacity of Closed/Open-Access Cognitive Radio Systems Coexisting with a Macro Cellular Systems

2012 ◽  
Vol E95-B (4) ◽  
pp. 1190-1197
Author(s):  
Hiromasa FUJII ◽  
Hiroki HARADA ◽  
Shunji MIURA ◽  
Hidetoshi KAYAMA
Keyword(s):  
Cognitive Radio ◽  
Open Access ◽  
Cellular Systems ◽  
Cognitive Radio Systems ◽  
Radio Systems ◽  
Macro Cellular
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