Intelligent resource allocation scheme for the cognitive radio network in the presence of primary user emulation attack

2017 ◽  
Vol 11 (15) ◽  
pp. 2370-2379 ◽  
Author(s):  
Deepa Das ◽  
Susmita Das
Keyword(s):  
Resource Allocation ◽  
Cognitive Radio ◽  
Cognitive Radio Network ◽  
Primary User ◽  
Radio Network ◽  
Allocation Scheme ◽  
Primary User Emulation Attack ◽  
Primary User Emulation ◽  
Resource Allocation Scheme

scholarly journals A Robust Cooperative Spectrum Sensing-Assisted Multiuser Resource Allocation Scheme

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Jun Du ◽  
Daoxing Guo ◽  
Bangning Zhang ◽  
Yunxia Su
Keyword(s):  
Resource Allocation ◽  
Cognitive Radio ◽  
Spectrum Sensing ◽  
Cooperative Spectrum Sensing ◽  
Primary User ◽  
System Throughput ◽  
Allocation Scheme ◽  
Spectrum Access ◽  
Primary User Emulation Attack ◽  
Resource Allocation Scheme

Cognitive radio (CR), which is proposed as a solution for spectrum scarcity, imposes some threats to the network. One severe attack to cognitive radio network is the primary user emulation attack (PUEA), in which an attacker may transmit its signal with high power or mimic specific features of the primary user’s signal to prevent secondary users from accessing the licensed spectrum. In this paper, we study a subcarrier and power allocation problem for orthogonal frequency division multiple access-(OFDMA-) based CR systems in the presence of PUEA. To maximize the system throughput while keeping the interference introduced to the primary user (PU) below given thresholds with a certain probability, a joint design of a robust cooperative spectrum sensing and a resource allocation scheme is proposed. In the proposed scheme, the inaccurate classification of PU signals and PUEA signals provided by robust cooperative spectrum sensing is utilized by resource scheduling module. To further exploit the underutilized spectrum bands, we also evaluate the performance of the proposed scheme in the hybrid overlay/underlay spectrum access mechanism. Numerical results demonstrate the effectiveness of the proposed scheme compared to conventional scheme regardless of the number of SUs or the kind of spectrum access mechanism being used.

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