Spectrum Sensing Performance Based on Improved Energy Detector in Cognitive Radio Networks

2020 ◽  
Author(s):  
Yang Zheng ◽  
Yunfei Xia ◽  
Honghai Wang
Keyword(s):  
Cognitive Radio ◽  
Spectrum Sensing ◽  
Cognitive Radio Networks ◽  
Radio Networks ◽  
Energy Detector ◽  
Improved Energy Detector ◽  
Sensing Performance

scholarly journals Spectrum sensing in cognitive radio networks: threshold optimization and analysis

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Kenan kockaya ◽  
Ibrahim Develi
Keyword(s):  
Online Learning ◽  
Cognitive Radio ◽  
Fading Channels ◽  
Spectrum Sensing ◽  
Cognitive Radio Networks ◽  
Learning Algorithm ◽  
Radio Networks ◽  
Decision Threshold ◽  
Online Learning Algorithm ◽  
Sensing Performance

AbstractCognitive radio is a technology developed for the effective use of radio spectrum sources. The spectrum sensing function plays a key role in the performance of cognitive radio networks. In this study, a new threshold determination method based on online learning algorithm is proposed to increase the spectrum sensing performance of spectrum sensing methods and to minimize the total error probability. The online learning algorithm looks for the optimum decision threshold, which is the most important parameter to decide the presence or absence of the primary user, using historical detection data. Energy detection- and matched filter-based spectrum sensing methods are discussed in detail. The performance of the proposed algorithm was tested over non-fading and different fading channels for low signal-to-noise ratio regime with noise uncertainty. In the conclusion of the simulation studies, improvement in spectrum sensing performance according to optimal threshold selection was observed.

Sensing performance of energy detector in cognitive radio networks

2018 ◽  
Vol 11 (4) ◽  
pp. 773-778 ◽  
Author(s):  
Samit Kumar Ghosh ◽  
Jishan Mehedi ◽  
Umesh Chandra Samal
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Radio Networks ◽  
Energy Detector ◽  
Sensing Performance
Sign in / Sign up

Export Citation Format

Share Document