Results 1 to 10 of about 14,184,159 (383)

Analysis of the Impact of Detection Threshold Adjustments and Noise Uncertainty on Energy Detection Performance in MIMO-OFDM Cognitive Radio Systems [PDF]

open access: yesSensors, 2022
Due to the capability of the effective usage of the radio frequency spectrum, a concept known as cognitive radio has undergone a broad exploitation in real implementations.
Josip Lorincz   +2 more
doaj   +3 more sources

Machine Learning for LTE Energy Detection Performance Improvement [PDF]

open access: yesSensors, 2019
The growing number of radio communication devices and limited spectrum resources are drivers for the development of new techniques of dynamic spectrum access and spectrum sharing.
Małgorzata Wasilewska, Hanna Bogucka
doaj   +3 more sources

On Optimal Cooperative Sensing with Energy Detection in Cognitive Radio [PDF]

open access: yesSensors, 2017
In this paper, we propose an optimal cooperative sensing technique for cognitive radio to maximize sensing performance based on energy detection. In most spectrum sensing research, many cooperation methods have been proposed to overcome the sensitivity ...
Sunghwan Bae, Jaewoo So, Hongseok Kim
doaj   +3 more sources

On the Signal-to-Noise Ratio Wall of Energy Detection in Spectrum Sensing

open access: yesIEEE Access, 2022
In this paper, a comprehensive analysis of the signal-to-noise ratio wall (SNRw) of cognitive radio (CR)-based non-cooperative spectrum sensing (nCSS) and cooperative spectrum sensing (CSS) using energy detection (ED) is presented. The analysis considers
Lucas Dos Santos Costa   +2 more
doaj   +2 more sources

A fake interacting dark energy detection? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2020
ABSTRACT Models involving an interaction between the dark matter and the dark energy sectors have been proposed to alleviate the long-standing Hubble constant tension. In this paper, we analyse whether the constraints and potential hints obtained for these interacting models remain unchanged when using simulated Planck data ...
Di Valentino, Eleonora, Mena, Olga
openaire   +4 more sources

Accurate and Practical Energy Detection over α-μ Fading Channels [PDF]

open access: yesSensors, 2020
In this study, a novel and exact closed-form expression for detection probability of energy detection (ED) in terms of Meijer’s G-function over α-μ generalized fading channels was derived.
Kaitian Cao, Ping Qian, Jing An, Li Wang
doaj   +2 more sources

Quantum-enhanced screened dark energy detection. [PDF]

open access: yesEur Phys J C Part Fields
AbstractWe propose an experiment based on a Bose–Einstein condensate interferometer for strongly constraining fifth-force models. Additional scalar fields from modified gravity or higher dimensional theories may account for dark energy and the accelerating expansion of the Universe. These theories have led to proposed screening mechanisms to fit within
Hartley D, Käding C, Howl R, Fuentes I.
europepmc   +5 more sources

Implementation Issues of Adaptive Energy Detection in Heterogeneous Wireless Networks [PDF]

open access: yesSensors, 2017
Spectrum sensing (SS) enables the coexistence of non-coordinated heterogeneous wireless systems operating in the same band. Due to its computational simplicity, energy detection (ED) technique has been widespread employed in SS applications; nonetheless,
Iker Sobron   +5 more
doaj   +2 more sources

Fundamental Limitations in Energy Detection for Spectrum Sensing

open access: yesJournal of Sensor and Actuator Networks, 2018
A key enabler for Cognitive Radio (CR) is spectrum sensing, which is physically implemented by sensor and actuator networks typically using the popular energy detection method.
Xiao-Li Hu, Pin-Han Ho, Limei Peng
doaj   +2 more sources

Self-Tuning of Signal Detection Level for Energy Detection-Based Carrier Sense in Low-Power Wide-Area Networks [PDF]

open access: yesSensors
Carrier sense allows end devices to improve the communication quality through autonomous decentralization by consuming power. In particular, energy detection-based carrier sense can improve communication quality compared with peak detection-based carrier
Shusuke Narieda, Takeo Fujii
doaj   +2 more sources

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