One of the essential security threats for 5G networks is jamming. It is relatively easy to be performed utilizing cheap and publically available devices. Open Radio Access network (O-RAN) architecture is very suitable...
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ISBN:
(纸本)9798350311143
One of the essential security threats for 5G networks is jamming. It is relatively easy to be performed utilizing cheap and publically available devices. Open Radio Access network (O-RAN) architecture is very suitable for detecting such events thanks to the openness of interfaces and the ability to analyze wireless traffic metrics and exchange control messages in a RAN Intelligent controller (RIC) using some dedicated xApp or rApp. This paper presents a statistical method for downlink jamming detection utilizing the link quality reports provided by User Equipments (UEs). A vision of its implementation in O-RAN is presented altogether with performancequality metrics obtained via simulations.
Wireless Sensor networks (WSNs) are utilized as distributed systems for wireless communication and data collection from sensors. A WSN can be represented as a graph consisting of sensors and wireless links. If this gr...
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Image degradation, which is caused by imaging devices instability, brings great challenges to single image super resolution (SISR). However, the existing degraded image super resolution (DegSR) networks reconstruct al...
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ISBN:
(纸本)9798350334722
Image degradation, which is caused by imaging devices instability, brings great challenges to single image super resolution (SISR). However, the existing degraded image super resolution (DegSR) networks reconstruct all image blocks via one complex network, which ignore degradation degree of image blocks and result in low reconstruction efficiency. Therefore, this paper proposes a fast network for DegSR based on degrade degree classification, dubbed ClassDegSR. Specifically, image blocks are classified based on degradation degree via a Class- Module, which are further processed by different scale branches via a DegSR-Module. Moreover, a three-stage training strategy which utilizes pretrained modules is proposed to enhance the training robustness. According to simulation results, ClassDegSR effectively improves reconstruction quality and efficiency, which has practical value in systems with tight computing resources. And the code is available at https://***/vanwd628/ClassDegSR.
General Type-2 (GT2) Fuzzy Logic systems (FLSs) are perfect candidates to quantify uncertainty, which is crucial for informed decisions in high-risk tasks, as they are powerful tools in representing uncertainty. In th...
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ISBN:
(纸本)9798350319552;9798350319545
General Type-2 (GT2) Fuzzy Logic systems (FLSs) are perfect candidates to quantify uncertainty, which is crucial for informed decisions in high-risk tasks, as they are powerful tools in representing uncertainty. In this paper, we travel back in time to provide a new look at GT2-FLSs by adopting Zadeh's (Z) GT2 Fuzzy Set (FS) definition, intending to learn GT2-FLSs that are capable of achieving reliable High-quality Prediction Intervals (HQ-PI) alongside precision. By integrating Z-GT2-FS with the a-plane representation, we show that the design flexibility of GT2-FLS is increased as it takes away the dependency of the secondary membership function from the primary membership function. After detailing the construction of Z-GT2-FLSs, we provide solutions to challenges while learning from high-dimensional data: the curse of dimensionality, and integrating Deep Learning (DL) optimizers. We develop a DL framework for learning dual-focused Z-GT2-FLSs with high performances. Our study includes statistical analyses, highlighting that the Z-GT2-FLS not only exhibits high-precision performance but also produces HQ-PIs in comparison to its GT2 and IT2 fuzzy counterparts which have more learnable parameters. The results show that the Z-GT2-FLS has a huge potential in uncertainty quantification.
The exponential expansion of the internet of Things (IoT) has resulted in a heightened level of automation and connectedness among gadgets, eliminating the need for deliberate user involvement, thereby augmenting the ...
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This study investigates the optimal allocation problem of attack energy in multi-system remote state estimation for Cyber-Physical systems (CPSs). We consider a scenario where there are M independent systems, each equ...
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The proceedings contain 14 papers. The topics discussed include: a study on optimizing indoor air quality through the integration of multi-point monitoring and the design of a wet scrubber;phytoplankton classification...
ISBN:
(纸本)9798350351873
The proceedings contain 14 papers. The topics discussed include: a study on optimizing indoor air quality through the integration of multi-point monitoring and the design of a wet scrubber;phytoplankton classification using a simplified convolutional neural network and edge enhancement;threat reduction framework for intelligent systems;advancing autonomous mobile robots with the dynamic window approach: an exploration of integrated simulation for enhanced performance;a two-stage adaptive improved genetic algorithm for flexible job-shop scheduling problem with AGVs;and machine learning-based intent analysis system using voice recognition for imported food information delivery.
Significant penetration of wind power into power systems gives rise to severe power quality concerns, especially voltage violations. In wind farms, the system model parameters are usually inaccurate or even unknown, w...
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ISBN:
(纸本)9798350377477;9798350377460
Significant penetration of wind power into power systems gives rise to severe power quality concerns, especially voltage violations. In wind farms, the system model parameters are usually inaccurate or even unknown, which brings great difficulties to the implementation of conventional model-based control methods. Moreover, wind farms are usually partially observable since only a few measurements are available at critical nodes. To provide a practical Volt/Var control (VVC) strategy for such networks, a novel model-free VVC method based on zeroth-order feedback optimization is proposed in this paper, which doesn't rely on any system model parameters. Firstly, the proposed method continuously collects system output measurements and evaluates the objective function value at the current input and at the measured output, thus constructing gradient estimates. Then, the control inputs are updated via an accelerated gradient projection algorithm, where the step length is selected based on Barzilai-Borwein-like rules for constrained optimization to improve the speed of convergence. Numerical tests exhibit a promising performance of the proposed method in voltage control.
Integration of widely distributed small-scale renewable energy sources like rooftop photovoltaic panels and emerging loads like plug-in electric vehicles would cause more volatility in total net demand of distribution...
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Integration of widely distributed small-scale renewable energy sources like rooftop photovoltaic panels and emerging loads like plug-in electric vehicles would cause more volatility in total net demand of distribution networks. Utility-owned storage units and control devices like tap changers and capacitors may not be sufficient to manage the system in real-time. Exploitation of available flexibility in demand side through aggregators is a new measure that distribution system operators are interested in. In this article, we present a developed real-time management schema based on internet of things solutions which facilitate interactions between system operators and aggregators for ancillary services like power balance at primary substation or voltage regulation at secondary substations. Two algorithms for power balance and voltage regulation are developed based on modified optimal power flow and voltage sensitivity matrix, respectively. To demonstrate the applicability of the schema, we set-up a real-time simulation-based test bed and realized the performance of this approach in a real-like environment using real data of a network with residential buildings.
Today, the exponential growth of technology and the boom in connection demand has resulted in significant growth of internet of Things (IoT) devices. In light of the enormous increase in smart devices, secure communic...
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