Queuing analysis for cognitive radio networks under peak interference power constraint

2011 ◽  
Author(s):  
Hung Tran ◽  
Trung Q. Duong ◽  
Hans-Jurgen Zepernick
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Radio Networks ◽  
Interference Power ◽  
Power Constraint ◽  
Queuing Analysis ◽  
Peak Interference Power

scholarly journals Reliability-Security Trade-Off Analysis of Cognitive Radio Networks with Jamming and Licensed Interference

2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
Khuong Ho-Van ◽  
Thiem Do-Dac
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Rayleigh Fading ◽  
Feasible Solution ◽  
Radio Networks ◽  
Power Constraint ◽  
Trade Off ◽  
Maximum Transmit Power ◽  
The Difference ◽  
Non Gaussian

Cognitive radio networks (CRNs) allow coexistence of unlicensed users (UUs) and licensed users (LUs) and hence, mutual interference between UUs and LUs is neither ignored nor considered as Gaussian-distributed quantity. Additionally, exploiting jamming signals to purposely interfere with signal reception of eavesdroppers is a feasible solution to improve security performance of CRNs. This paper analyzes reliability-security trade-off, which accounts for maximum transmit power constraint, interference power constraint, jamming signal, and Rayleigh fading, and considers interference from LUs as non-Gaussian-distributed quantity. Toward this end, exact closed-form expressions of successful detection probability and successful eavesdropping probability, from which reliability-security trade-off is straightforwardly visible, are first suggested and then validated by Monte-Carlo simulations. Various results demonstrate that interference from LUs considerably decreases both probabilities while jamming signal enlarges the difference between them, emphasizing its effectiveness in improving security performance.

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