Effective Energy Detection for IoT Systems Against Noise Uncertainty at Low SNR
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2018.2877698
Abstract: This paper deals with spectrum sensing for cognitive radio-based Internet of Things (IoT) systems and their coexistence with Long Term Evolution (LTE) systems. Due to the sparsity of the covariance matrix of IoT/LTE signals, we… read more here.
Keywords: noise power; iot systems; power; energy detection ... See more keywords
A Measurement of Noise Wave Correlation Matrix Using Noise Power Ratios
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2018.2866315
Abstract: In this paper, we propose a novel technique for the measurement of noise wave correlation matrix (NWCM) of a two-port network using measured noise power ratios. The ratio of two measured noise powers is observed… read more here.
Keywords: noise power; noise wave; power ratios; measurement noise ... See more keywords
Generalized Extraction of the Noise Parameters by Means of Source– and Load–Pull Noise Power Measurements
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2018.2794995
Abstract: This paper is focused on the extraction of the noise parameters of a linear two-port network by exploiting both forward and reverse noise power measurements, thus extending the universally adopted approach in which only forward… read more here.
Keywords: extraction; noise parameters; power measurements; noise power ... See more keywords
Accounting for reconstruction kernel-induced variability in CT radiomic features using noise power spectra
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Medical Imaging"
DOI: 10.1117/1.jmi.5.1.011013
Abstract: Abstract. Large variability in computed tomography (CT) radiomics feature values due to CT imaging parameters can have subsequent implications on the prognostic or predictive significance of these features. Here, we investigated the impact of pitch,… read more here.
Keywords: reconstruction; radiomic features; noise power; variability ... See more keywords
On the performance of the noise power spectrum from the gain-corrected radiography images
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Medical Imaging"
DOI: 10.1117/1.jmi.5.1.013508
Abstract: Abstract. Fixed pattern noise due to nonuniform amplifier gains and scintillator sensitivity should be alleviated in radiography imaging to acquire low-noise x-ray images from detectors. Here, the noise property of the detector is usually evaluated… read more here.
Keywords: gain corrected; nnps infimum; gain; noise power ... See more keywords