Performance Analysis of Co-Operative Spectrum Sensing Using Rayleigh Fading Channel in Cognitive Radio

2014 ◽  
Vol 3 (3) ◽  
pp. 7-13
Author(s):  
Yamini Verma ◽  
◽  
K. Neelam Dewangan ◽  
Keyword(s):  
Cognitive Radio ◽  
Performance Analysis ◽  
Spectrum Sensing ◽  
Fading Channel ◽  
Rayleigh Fading ◽  
Rayleigh Fading Channel

scholarly journals Spectrum Sensing Using Energy Detector in Rayleigh Fading Channel

2020 ◽  
Vol 32 ◽  
pp. 02005
Author(s):  
Hemlata Patil ◽  
Sai Vennela Nekkanti ◽  
Disha Negi ◽  
Nikita Masanagi ◽  
Sakshi More
Keyword(s):  
Cognitive Radio ◽  
Fading Channels ◽  
Spectrum Sensing ◽  
Fading Channel ◽  
Rayleigh Fading ◽  
False Alarm Probability ◽  
Rayleigh Fading Channel ◽  
Probability Of Detection ◽  
Detection Methods ◽  
Operating Characteristics

Cognitive Radio, which is an adaptive and intelligent radio has an important feature called spectrum sensing. It monitors the presence or absence of the authorized users in a fixed or licensed spectrum. There is a rise in the use of wireless communications in recent times, which has led to the underutilization of the available bandwidth. This problem can be solved to some extent by using cognitive radio technology. Cognitive radio gives an opportunity for unauthorized users to use the licensed spectrum, resourcefully, when not in use. Using spectrum sensing energy detection methods, the existence of authorized users, in various fading channels can be done. The operating characteristics of the receiver can be analyzed using parameters of performance like signal to noise ratio, probability of false-alarm, probability of detection. In this paper we assess Rayleigh fading channel and compare with AWGN (non- fading) channel. Theoretical and simulated results are compared, and observations are being made.

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