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Cooperative wideband spectrum sensing in suspicious cognitive radio network

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Cooperative wideband spectrum sensing in suspicious cognitive radio network

Content Provider	IET Digital Library
Author	Srinu, Sesham Sabat, Samrat Lagnajeet
Abstract	This study presents a cooperative wideband spectrum-sensing technique based on the entropy of the received signal in the frequency domain. To enhance the efficiency of detection, multiple suspicious cognitive users are excluded from the network using generalised extreme studentised deviate test and sigma limit test. The performance of the proposed technique is compared with the energy detection technique under different channel environments. The simulation results demonstrate that the entropy detection method, with excluded suspicious users, has 9 dB improvement in performance compared to the energy detection technique in extremely low signal-to-noise ratio regime. This is a significant improvement for cognitive radio systems. The simulations were performed with false alarm probability and detection probability of 0.01 and 0.9, respectively. The hardware-in-the-loop simulation of the proposed algorithm is further carried out in the Xilinx Virtex-4 Field Programmable Gate Array.
Starting Page	153
Ending Page	161
Page Count	9
ISSN	20436386
Volume Number	3
e-ISSN	20436394
Issue Number	Issue 2, Jun (2013)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-wss/3/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-wss.2012.0044
Journal	IET Wireless Sensor Systems
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Broadband Network Channel Environment Cognitive Radio Cooperative Communication Cooperative Wideband Spectrum Sensing Detection Probability Energy Detection Technique Entropy Entropy Detection Method Excluded Suspicious User False Alarm Probability Field Programmable Gate Array Frequency Domain Frequency Domain Analysis Generalised Extreme Studentised Deviate Test Hardware-in-the-loop Simulation Logic Circuit Mathematical Analysis Probability Radio Link And Equipment Radio Spectrum Management Received Signal Sigma Limit Test Signal-to-noise Ratio Regime Statistics Suspicious Cognitive Radio Network Suspicious Cognitive User Wireless Channel Xilinx Virtex 4 Field Programmable Gate Array
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering

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