Spectrum sensing: Enhanced energy detection technique based on noise measurement

Y Arjoune, Z El Mrabet, H El Ghazi… - 2018 IEEE 8th annual …, 2018 - ieeexplore.ieee.org
… between the signal and the noise. It has a low … the noise is uncertain. The detection
performance of this technique can be further improvedusing a dynamic selection of the sensing

Effect of dynamic threshold & noise uncertainty in energy detection spectrum sensing technique for cognitive radio systems

K Chabbra, G Mahendru… - … Conference on Signal …, 2014 - ieeexplore.ieee.org
… The estimated sensed energy is then compared with a set threshold to signify the presence
energy detection techniques for spectrum sensing. The effect of dynamic threshold and noise

Energy dissipation and noise correlations in biochemical sensing

CC Govern, PR ten Wolde - Physical review letters, 2014 - APS
… Here, we study how the accuracy of sensing depends on the correlations between these
extrinsic and intrinsic sources of noise. We find that the sensing precision of signaling networks …

Noise activated nonlinear dynamic sensors

L Gammaitoni, AR Bulsara - Physical review letters, 2002 - APS
dynamical description for a wide class of nonlinear physical sensors operating in a noisy
We show that the presence of ambient noise, far from degrading the sensor operation, can …

Energy detection using estimated noise variance for spectrum sensing in cognitive radio networks

Z Ye, G Memik, J Grosspietsch - 2008 IEEE Wireless …, 2008 - ieeexplore.ieee.org
… However, they did not show how the dynamic range can be derived or estimated. We … sensing
problem: how can we set the threshold based on a real time estimation of the noise power, …

Cooperative spectrum sensing algorithm to overcome noise fluctuations based on energy detection in sensing systems

G Yu, H Wang, W Du - Wireless Communications and Mobile …, 2021 - Wiley Online Library
noise and are worse in situations with low signal-to-noise ratio. First, we present a dynamic
threshold algorithm based on energy … of noise fluctuation and improve the sensing sensitivity. …

DISCERN: Enhanced Dynamic noISe varianCe based EneRgy sensing for cognitive radio using USRP at Wi‐Fi bands

A Avinash Reddy, R Babu Battula… - International Journal …, 2020 - Wiley Online Library
… circumstances encountered during each sensing period. In the proposed method, received
… from the noise samples. The enhanced dynamic noise variance-based energy sensing is …

Cooperative energy detection with heterogeneous sensors under noise uncertainty: SNR wall and use of evidence theory

PB Gohain, S Chaudhari… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
dynamic behaviour of the radio spectrum. It also has good sensing performance when noise
… However, in most of the cases, the noise variance is not known and has to be estimated. In …

Improvement of noise uncertainty and signal-to-noise ratio wall in spectrum sensing based on optimal stochastic resonance

D He, X Chen, L Pei, L Jiang, W Yu - Sensors, 2019 - mdpi.com
… ratio (SNR) wall are two very serious problems in spectrum sensing of cognitive radio (CR) …
sensing methods especially under low SNR circumstances. In this study, an optimal dynamic

On the signal-to-noise ratio wall of energy detection in spectrum sensing

LDS Costa, DA Guimaraes, BF Uchôa-Filho - IEEE Access, 2022 - ieeexplore.ieee.org
… A new and more appropriate dynamic spectrum access (DSA) policy is … sensing information
is forwarded to a fusion center (FC), where the global decision upon the state of the sensed