Results 11 to 20 of about 145,644 (261)
Reputation-Based Spectrum Sensing Strategy Selection in Cognitive Radio Ad Hoc Networks
Sensors, 2018 Spectrum sensing plays an essential role in the detection of unused spectrum whole in cognitive radio networks, including cooperative spectrum sensing (CSS) and independent spectrum sensing.
Zhiguo Sun +4 more
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Advanced Energy Detector Based Cooperative Spectrum Sensing In Cognitive Networks
MATEC Web of Conferences, 2016 Cognitive radio is a befitting hopeful technology for future. Spectrum sensing is the most critical function of cognitive radio. Most of the spectrums sensing processes proposed earlier become impractical at lower signal to noise ratio conditions.
Ritu, Seehra Ameeta
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Adaptive spectrum sensing and estimation [PDF]
2013 IEEE International Conference on Acoustics, Speech and Signal Processing, 2013 We propose a multistage adaptive approach to spectrum sensing and estimation with the goal of concentrating more sensing resources on spectral components of interest. The allocation of resources to minimize the mean squared estimation error is formulated as a dynamic program. An optimal policy is given for the case of two sensing stages.
Dennis L. Wei, Alfred O. Hero III
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Edge-Graph Enhanced Network for Multi-Object Tracking in UAV Videos
Remote SensingMulti-Object Tracking (MOT) is a fundamental research topic in the field of computer vision, with broad application potential in unmanned aerial vehicle (UAV) videos.
Yiming Xu, Hongbing Ji, Yongquan Zhang
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Contextual-Semantic Interactive Perception Network for Small Object Detection in UAV Aerial Images
Remote SensingUnmanned Aerial Vehicle (UAV)-based aerial object detection has been widely applied in various fields, including logistics, public security, disaster response, and smart agriculture.
Yiming Xu, Hongbing Ji
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Spectrum sensing techniques for 5G wireless networks: Mini review
Sensors International, 2022 Cognitive radio (CR) is a leading candidate for addressing spectrum constraints and is a key component of fifth-generation (5G) communications. For optimum usage of accessible unused spectrum, spectrum sensing is a critical aspect of CR.
RS Koteeshwari, B. Malarkodi
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Optimization of Spectrum Utilization in Cooperative Spectrum Sensing
Sensors, 2019 This paper presents an analytical framework for the probability of spectrum hole utilization (PSHU) of a cognitive radio system with soft cooperative spectrum sensing (CSS) under a practical consideration of fixed frame structure. In practical systems, the length of a time-frame is generally fixed, where the time-frame consists of sensing, reporting ...
Mohsin Ali, Haewoon Nam
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Remote SensingUnderwater acoustic vector sensors (UAVSs) are increasingly utilized for remote passive sonar detection, but the accuracy of direction-of-arrival (DOA) estimation remains a challenging problem, particularly under low signal-to-noise ratio (SNR ...
Haitao Dong +4 more
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Deep Learning for Spectrum Sensing [PDF]
IEEE Wireless Communications Letters, 2019 In cognitive radio systems, the ability to accurately detect primary user's signal is essential to secondary user in order to utilize idle licensed spectrum. Conventional energy detector is a good choice for blind signal detection, while it suffers from the well-known SNR-wall due to noise uncertainty. In this letter, we firstly propose a deep learning
Jiabao Gao +4 more
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Spectrum Sensing for Cognitive Radio [PDF]
Proceedings of the IEEE, 2009 Spectrum sensing is the very task upon which the entire operation of cognitive radio rests. For cognitive radio to fulfill the potential it offers to solve the spectrum underutilization problem and do so in a reliable and computationally feasible manner, we require a spectrum sensor that detects spectrum holes (i.e., underutilized subbands of the radio
Simon Haykin 0001 +2 more
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