K Chabbra, G Mahendru… - … Conference on Signal …, 2014 - ieeexplore.ieee.org
… The estimated sensedenergy is then compared with a set threshold to signify the presence … energy detection techniques for spectrum sensing. The effect of dynamic threshold and noise …
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 …
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 …
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, …
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. …
… circumstances encountered during each sensing period. In the proposed method, received … from the noise samples. The enhanced dynamicnoise variance-based energysensing is …
… 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 …
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 …
… 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 …