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IEEE Access

ISSN:

2169-3536

Dyscypliny:

  • Architektura i urbanistyka (Dziedzina nauk inżynieryjno-technicznych)
  • Automatyka, elektronika i elektrotechnika (Dziedzina nauk inżynieryjno-technicznych)
  • Informatyka techniczna i telekomunikacja (Dziedzina nauk inżynieryjno-technicznych)
  • Inżynieria biomedyczna (Dziedzina nauk inżynieryjno-technicznych)
  • Inżynieria lądowa i transport (Dziedzina nauk inżynieryjno-technicznych)
  • Inżynieria materiałowa (Dziedzina nauk inżynieryjno-technicznych)
  • Inżynieria mechaniczna (Dziedzina nauk inżynieryjno-technicznych)
  • Inżynieria środowiska, górnictwo i energetyka (Dziedzina nauk inżynieryjno-technicznych)
  • Nauki o zarządzaniu i jakości (Dziedzina nauk społecznych)
  • Informatyka (Dziedzina nauk ścisłych i przyrodniczych)
  • Nauki chemiczne (Dziedzina nauk ścisłych i przyrodniczych)

Punkty Ministerialne: Pomoc

Punkty Ministerialne - aktualny rok
Rok Punkty Lista
Rok 2021 100 Lista ministerialna 2019
Punkty Ministerialne - lata ubiegłe
Rok Punkty Lista
2021 100 Lista ministerialna 2019
2020 100 Lista ministerialna 2019
2019 100 Lista ministerialna 2019
2018 25 A
2017 25 A
2016 25 A

Model czasopisma:

Open Access

Punkty CiteScore:

Punkty CiteScore - aktualny rok
Rok Punkty
Rok 2020 4.8
Punkty CiteScore - lata ubiegłe
Rok Punkty
2020 4.8
2019 3.9
2018 3.1
2017 2.4
2016 3.5
2015 2.7
2014 1.4
2013 0.8

Impact Factor:

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Filtry

wszystkich: 72

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Katalog Czasopism

Rok 2021
  • A Model-Order Reduction Approach for Electromagnetic Problems With Nonaffine Frequency Dependence
    Publikacja

    - IEEE Access - Rok 2021

    The aim of this paper is to present a novel model-order reduction (MOR) technique for the efcient frequency-domain nite-element method (FEM) simulation of microwave components. It is based on the standard reduced-basis method, but the subsequent expansion frequency points are selected following the so-called sparsied greedy strategy. This feature makes it especially useful to perform a fast-frequency sweep of problems that lead...

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  • A Novel Versatile Decoupling Structure and Expedited Inverse-Model-Based Re-Design Procedure for Compact Single-and Dual-Band MIMO Antennas
    Publikacja

    - IEEE Access - Rok 2021

    Multiple-input multiple-output (MIMO) antennas are considered to be the key components of fifth generation (5G) mobile communications. One of the challenges pertinent to the design of highly integrated MIMO structures is to minimize the mutual coupling among the antenna elements. The latter arises from two sources, the coupling in the free space and the coupling currents propagating on a ground plane. In this paper, an array of...

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  • A Qualitative Study on Non-functional Requirements in Agile Software Development
    Publikacja

    Widespread use of agile software development (ASD) methods can be observed nowadays. Non-functional requirements (NFRs) are often reported to be a problematic issue for agile projects, since ASD methods tend to neglect NFRs while focusing on incremental delivery of functional features. Despite that, only very few studies have explored the requirements engineering practices used in ASD and dedicated particularly to NFRs. Objective:...

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  • A Single-Carrier-Based Pulse-Width Modulation Template for Cascaded H-Bridge Multilevel Inverters
    Publikacja

    - IEEE Access - Rok 2021

    Multiplicity of the triangular carrier signals is a criterion for the extension of sinusoidal pulsewidth modulation, SPWM, to a number of output voltage levels per phase-leg in cascaded H-bridge (CHB) multilevel inverter (MLI). Considering medium and high voltage applications where appreciable number of output voltage levels from CHB MLI is needed, commensurate high number of carrier signals in either classical level- or phase-shifted...

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  • A Wideband Channel Model for Body Area Networks in Circular Metallic Indoor Environments
    Publikacja

    - IEEE Access - Rok 2021

    In this paper, the wideband characterization of the propagation channel in circular metallic indoor environments is addressed, regarding Body Area Networks and 5G small cells, an analytical model for the dependence of the mean delay and the average delay spread on the circle radius, the working frequency and the distance between the transmitter and the receiver being proposed. The derivation of the model is initially done analytically,...

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  • Accurate Modeling of Frequency Selective Surfaces Using Fully-Connected Regression Model with Automated Architecture Determination and Parameter Selection Based on Bayesian Optimization
    Publikacja

    - IEEE Access - Rok 2021

    Surrogate modeling has become an important tool in the design of high-frequency structures. Although full-wave electromagnetic (EM) simulation tools provide an accurate account for the circuit characteristics and performance, they entail considerable computational expenditures. Replacing EM analysis by fast surrogates provides a way to accelerate the design procedures. Unfortunately, modeling of microwave passives is a challenging...

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  • Assessment of Connectivity-based Resilience to Attacks Against Multiple Nodes in SDNs
    Publikacja
    • D. Santos
    • A. de Sousa
    • C. Mas-Machuca
    • J. Rak

    - IEEE Access - Rok 2021

    In Software Defined Networks (SDNs), the control plane of a network is decoupled from its data plane. For scalability and robustness, the logically centralized control plane is implemented by physically placing different controllers throughout the network. The determination of the number and placement of controllers is known as the Controller Placement Problem (CPP). In the regular (i.e., failure-free) state, the control plane...

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  • Can Web Search Queries Predict Prices Change on the Real Estate Market?
    Publikacja

    This study aims to explore whether the intensity of internet searches, according to the Google Trends search volume index (SVI), is a predictor of changes in real estate prices. The motivation of this study is the possibility to extend the understanding of the extra predictive power of Google search engine query volume of future housing price change (shift direction) by (i) the introduction of a research approach that combines...

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  • Decoupled Kalman filter based identification of time-varying FIR systems

    When system parameters vary at a fast rate, identification schemes based on model-free local estimation approaches do not yield satisfactory results. In cases like this, more sophisticated parameter tracking procedures must be used, based on explicit models of parameter variation (often referred to as hypermodels), either deterministic or stochastic. Kalman filter trackers, which belong to the second category, are seldom used in...

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  • Design Evolution of the Ultrasonic Piezoelectric Motor Using Three Rotating Mode Actuators

    The development process and experimental investigation of the multicell piezoelectric motor is presented in this paper. The proposed design consists of three individual cells integrated into the stator, double rotor, and a preload system. Those elements are combined into a symmetrical structure of the motor. The two new prototypes have been designed, simulated and tested. Finite element numerical analysis is carried out to obtain...

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  • Design of a compact planar transmission line for miniaturized rat-race coupler with harmonics suppression
    Publikacja
    • A. Lalbakhsh
    • G. Mohamadpour
    • S. Roshani
    • M. Ami
    • S. Roshani
    • A. S. Sayem
    • M. Alibakhshikenari
    • S. Kozieł

    - IEEE Access - Rok 2021

    This paper presents an elegant yet straightforward design procedure for a compact rat-race coupler (RRC) with an extended harmonic suppression. The coupler’s conventional λ/4 transmission lines (TLs) are replaced by a specialized TL that offers significant size reduction and harmonic elimination capabilities in the proposed approach. The design procedure is verified through the theoretical, circuit, and electromagnetic (EM) analyses,...

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  • Design of High-Performance Scattering Metasurfaces through Optimization-Based Explicit RCS Reduction
    Publikacja

    - IEEE Access - Rok 2021

    The recent advances in the development of coding metasurfaces created new opportunities in realization of radar cross section (RCS) reduction. Metasurfaces, composed of optimized geometries of meta-atoms arranged as periodic lattices, are devised to obtain desired electromagnetic (EM) scattering characteristics. Despite potential benefits, their rigorous design methodologies are still lacking, especially in the context of controlling...

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  • eFRADIR: An Enhanced FRAmework for DIsaster Resilience
    Publikacja
    • A. Pasic
    • R. Girao-Silva
    • F. Mogyorosi
    • B. Vass
    • T. Gomes
    • P. Babarczi
    • P. Revisnyei
    • J. Tapolcai
    • J. Rak

    - IEEE Access - Rok 2021

    This paper focuses on how to increase the availability of a backbone network with minimal cost. In particular, the new framework focuses on resilience against natural disasters and is an evolution of the FRADIR/FRADIR-II framework. It targets three different directions, namely: network planning, failure modeling, and survivable routing. The steady state network planning is tackled by upgrading a sub-network (a set of links termed...

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  • Enhancing Resilience of FSO Networks to Adverse Weather Conditions
    Publikacja
    • I. Kalesnikau
    • M. Pióro
    • J. Rak
    • H. Ivanov
    • E. Fitzgerald
    • E. Leitgeb

    - IEEE Access - Rok 2021

    Optical wireless networks realized by means of gigabit optical wireless communication (OWC) systems are becoming, in a variety of applications, an important alternative, or a complementary solution, to their fiber-based counterparts. However, performance of the OWC systems can be considerably degraded in periods of unfavorable weather conditions, such as heavy fog, which temporarily reduce the effective capacity of the network....

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  • Explicit Size-Reduction of Circularly Polarized Antennas through Constrained Optimization with Penalty Factor Adjustment
    Publikacja

    Modern communication systems of high data capacity incorporate circular polarization (CP) as the preferred antenna radiation field configuration. In many applications, integration of the system circuitry with antennas imposes size limitations on CP radiators, which makes their development process a challenging endeavor. This can be mitigated by means of simulation-driven design, specifically, constrained numerical optimization....

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  • High-Power Jamming Attack Mitigation Techniques in Spectrally-Spatially Flexible Optical Networks
    Publikacja
    • G. Savva
    • K. Manousakis
    • J. Rak
    • I. Tomkos
    • G. Ellinas

    - IEEE Access - Rok 2021

    This work presents efficient connection provisioning techniques mitigating high-power jamming attacks in spectrally-spatially flexible optical networks (SS-FONs) utilizing multicore fibers. High-power jamming attacks are modeled based on their impact on the lightpaths’ quality of transmission (QoT) through inter-core crosstalk. Based on a desired threshold on a lightpath’s QoT, the modulation format used, the length of the path,...

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  • Improved Modeling of Microwave Structures Using Performance-Driven Fully-Connected Regression Surrogate
    Publikacja

    - IEEE Access - Rok 2021

    Fast replacement models (or surrogates) have been widely applied in the recent years to accelerate simulation-driven design procedures in microwave engineering. The fundamental reason is a considerable—and often prohibitive—CPU cost of massive full-wave electromagnetic (EM) analyses related to solving common tasks such as parametric optimization or uncertainty quantification. The most popular class of surrogates are data-driven...

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  • Instructor Presence in Video Lectures: Preliminary Findings From an Online Experiment
    Publikacja

    - IEEE Access - Rok 2021

    Motivation. Despite the widespread use of video lectures in online and blended learning environments, there is still debate whether the presence of an instructor in the video helps or hinders learning. According to social agency theory, seeing the instructor makes learners believe that s/he is personally teaching them, which leads to deeper cognitive processing and, in turn, better learning outcomes. Conversely, according to cognitive...

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  • Mapping of the Covid-19 Vaccine Uptake Determinants From Mining Twitter Data
    Publikacja

    Opinion polls on vaccine uptake clearly show that Covid-19 vaccine hesitancy is increasing worldwide. Thus, reaching herd immunity not only depends on the efficacy of the vaccine itself, but also on overcoming this hesitancy of uptake in the population. In this study, we revealed the determinants regarding vaccination directly from people’s opinions on Twitter, based on the framework of the 6As taxonomy. Covid-19 vaccine acceptance...

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  • Non-Satellite Broadband Maritime Communications for e-Navigation Services

    The development of broadband network access technologies available to users on land has triggered a rapid expansion of a diverse range of services provided by terrestrial networks. However, due to limitations of digital communication technologies in the off-shore area, the maritime ICT systems evolution so far has not followed that trend. Despite the e-navigation initiative defining the set of Maritime Services, the progress in...

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  • Rapid Multi-Criterial Antenna Optimization by Means of Pareto Front Triangulation and Interpolative Design Predictors

    Modern antenna systems are designed to meet stringent performance requirements pertinent to both their electrical and field properties. The objectives typically stay in conflict with each other. As the simultaneous improvement of all performance parameters is rarely possible, compromise solutions have to be sought. The most comprehensive information about available design trade-offs can be obtained through multi-objective optimization...

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  • Reduced-Cost Microwave Design Closure by Multi-Resolution EM Simulations and Knowledge-Based Model Management

    Parameter adjustment through numerical optimization has become a commonplace of contemporary microwave engineering. Although circuit theory methods are ubiquitous in the development of microwave components, the initial designs obtained with such tools have to be further tuned to improve the system performance. This is particularly pertinent to miniaturized structures, where the cross-coupling effects cannot be adequately accounted...

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  • Reinforcement Learning Algorithm and FDTD-based Simulation Applied to Schroeder Diffuser Design Optimization
    Publikacja

    The aim of this paper is to propose a novel approach to the algorithmic design of Schroeder acoustic diffusers employing a deep learning optimization algorithm and a fitness function based on a computer simulation of the propagation of acoustic waves. The deep learning method employed for the research is a deep policy gradient algorithm. It is used as a tool for carrying out a sequential optimization process the goal of which is...

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  • Reversible Data Hiding in Encrypted DICOM Images Using Cyclic Binary Golay (23, 12) Code
    Publikacja

    In this paper, a novel reversible data hiding method for encrypted images (RDHEI) is proposed. An efficient coding scheme based on cyclic binary Golay (23, 12) code is designed to embed additional data into the least significant bits (LSBs) of the encrypted image. The most significant bits (MSBs) are used to ensure the reversibility of the embedding process. The proposed scheme is lossless, and based on the receiver’s privileges,...

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  • Simulator for Performance Evaluation of ASON/GMPLS Network
    Publikacja

    The hierarchical control plane network architecture of Automatically Switched Optical Network with utilization of Generalized Multi-Protocol Label Switching protocols is compliant to next generation networks requirements and can supply connections with required quality of service, even with incomplete domain information. Considering connection control, connection management and network management, the controllers of this architecture...

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  • Surrogate-Assisted Design of Checkerboard Metasurface for Broadband Radar Cross-Section Reduction
    Publikacja

    - IEEE Access - Rok 2021

    Metasurfaces have been extensively exploited in stealth applications to reduce radar cross section (RCS). They rely on the manipulation of backward scattering of electromagnetic (EM) waves into various oblique angles. However, arbitrary control of the scattering properties poses a significant challenge as a design task. Yet it is a principal requirement for making RCS reduction possible. This article introduces a surrogate-based...

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Rok 2020

wyświetlono 1141 razy