Satellite-based Multi-Resolution Compressive Spectrum Detection in Cognitive Radio Networks

2012 ◽  
Author(s):  
Hanqing Li ◽  
Qing Guo ◽  
Qingzhong Li
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Radio Networks ◽  
Spectrum Detection

scholarly journals Spectrum Sensing in Cognitive Radio Networks: Threshold Value Optimization and Analysis

2020 ◽  
Author(s):  
Kenan KOÇKAYA ◽  
İbrahim DEVELİ
Keyword(s):  
Cognitive Radio ◽  
Spectrum Sensing ◽  
Cognitive Radio Networks ◽  
Threshold Value ◽  
Radio Networks ◽  
Detection Performance ◽  
Probability Of Detection ◽  
Optimal Threshold ◽  
Detection Scheme ◽  
Spectrum Detection

Abstract Cognitive 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, we propose an online learning algorithm for the energy detection scheme, which aims to maximizing spectrum detection performance. Optimal threshold value, which is critical for the determination of the absence or the presence of a licensed user, was mathematically expressed in accordance with the balance between probability of detection and probability of false alarm. Performance of the proposed algorithm was tested on non-fading and different fading channels for low signal-to-noise ratio (SNR) regime with noise uncertainty. In conclusion of the simulation studies, improvement in spectrum detection performance according to optimal threshold value selection was observed.

scholarly journals Estimation of Best Spectrum Sensing Concept in Cognitive Radio Networks

2019 ◽  
Vol 8 (12) ◽  
pp. 1159-1163
Keyword(s):  
Cognitive Radio ◽  
Spectrum Sensing ◽  
Cognitive Radio Networks ◽  
Specific Energy ◽  
Spectrum Sharing ◽  
Matched Filter ◽  
Energy Detection ◽  
Radio Networks ◽  
Radio System ◽  
Spectrum Detection

Cognitive radio is a versatile and sharp radio system learning that can naturally recognize accessible divert in a remote range and change correspondence parameters empower more data to run at the same time. Psychological radio is estimated as a point towards which a product characterized radio stage ought to create. The significant elements of CR incorporate Spectrum detecting, Spectrum portability, Spectrum choice, Spectrum sharing. Range detecting frames the base of subjective radios and is one of the principle strategies that empower the intellectual radios to improve the range use. Range detecting is for the most part done in the recurrence and time area. In this paper we will analyze about and investigate four noteworthy range detecting systems to be specific Energy detection, Matched filter spectrum detection, Cyclostationary spectrum detection and Waveform based spectrum detection. In view of the similar outcomes we can appraise the best spectrum detection for remote portable applications

A reliable cooperative spectrum detection scheme in cognitive radio networks

2016 ◽  
Vol 23 (3) ◽  
pp. 651-661 ◽  
Author(s):  
Jian Liu ◽  
Ruilin Xiao ◽  
Hao Zhang ◽  
Zhizhong Zhang
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Radio Networks ◽  
Detection Scheme ◽  
Spectrum Detection
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