Browsing 2022/3 by Issue Date
Now showing items 1-20 of 22
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Two-Dimensional Signal Detection Algorithm for Omni-Directional Signal Receiving Using Low-Frequency Orthogonal Magnetic Antenna
(Společnost pro radioelektronické inženýrství, 2022-09)This paper proposes a two-dimensional signal detection algorithm for low-frequency signal receiving using orthogonal magnetic antenna. According to the directional properties of a single antenna, the direction coefficient ... -
Classification Weighted Deep Neural Network Based Channel Equalization for Massive MIMO-OFDM Systems
(Společnost pro radioelektronické inženýrství, 2022-09)Massive multi-input multi-output (MIMO) has attracted significant interest in academia and industry, which can efficiently increase the transmission rate. However, the error rate of conventional channel equalizations in ... -
An EMC Susceptibility Study of Integrated Basic Bandgap Voltage Reference Cores
(Společnost pro radioelektronické inženýrství, 2022-09)This paper presents a comparative EMC susceptibility study of various integrated bandgap voltage reference cores. Conventional well-known bandgap references based on Kuijk, Brokaw and Tsividis concepts with reduced count ... -
Design PID Controllers Using Generalized Laguerre Functions
(Společnost pro radioelektronické inženýrství, 2022-09)This paper deals with a method of designing PID controllers. Generalized Laguerre functions were used for this task. Generalized Laguerre functions generate an orthogonal base in the time domain and the operator domain. ... -
Distributed QC-LDPC Coded Spatial Modulation for Half-Duplex Wireless Communications
(Společnost pro radioelektronické inženýrství, 2022-09)The bit error rate (BER) performance of spatial modulation (SM) can be further improved by applying quasi-cyclic low-density parity-check (QC-LDPC) codes recommended in 5G to SM. It motivates us to propose a QC-LDPC coded ... -
Bistatic ISAR sparse aperture maneuvering target translational compensation imaging algorithm
(Společnost pro radioelektronické inženýrství, 2022-09)For bistatic inverse synthetic aperture radar (Bi-ISAR), the non-uniform motion state of maneuvering target and the time-varying bistatic angle make the traditional imaging method of moving target face the problem of ... -
A 2V, 32.13nA, fully MOSFET Voltage Limiter for Low Power Applications
(Společnost pro radioelektronické inženýrství, 2022-09)This paper presents a fully MOSFET DC voltage limiter with low current consumption. In the proposed voltage reference structure to reduce power consumption, transistors are biased in the sub-threshold region. To generate ... -
Spectrum Map Construction Based on Optimized Sensor Selection and Adaptive Kriging Model
(Společnost pro radioelektronické inženýrství, 2022-09)Spectrum map (SM) is an important tool to reflect the spectrum usage in the electromagnetic environment. To address the problems of low precision and poor efficiency in the SM construction, this paper develops a novel SM ... -
Innovative Power Allocation Strategy for NOMA Systems by Employing the Modified ABC Algorithm
(Společnost pro radioelektronické inženýrství, 2022-09)Non-Orthogonal Multiple Access (NOMA) technique is a remarkable component of 5G wireless networks; since NOMA immensely augments the spectral efficiency and serves all users fairly. To accomplish these, efficient power ... -
Dual Band Microstrip Semicircular Slot Patch Antenna for WLAN and WIMAX Applications
(Společnost pro radioelektronické inženýrství, 2022-09)A dual band microstrip antenna for WIMAX and WLAN applications is analyzed and presented in this paper. The proposed antenna has semicircular slot in patch and Defected Ground Surface (DGS) technique for the improvement ... -
Microwave Dielectric and Reflection Analysis on Pure and Adulterated Trigona Honey and Honey Gold
(Společnost pro radioelektronické inženýrství, 2022-09)Honey adulteration is common in food industry, as it provides cheaper alternative for user to consume honey. However, it has been abused by industry runners with unsavory practices. It leads to business fraudulency. Pure ... -
A Novel High-Sensitivity Broadband Rectifier for Ambient RF Energy Harvesting
(Společnost pro radioelektronické inženýrství, 2022-09)In this paper, a novel high-sensitivity broadband rectifier is proposed aiming at ambient radio frequency (RF) energy harvesting. Traditionally, voltage doubling rectifying circuit is used to design high-sensitivity ... -
On the Investigation of Frequency-Related Fingerprints of Meminductor/Capacitor and Their Duals Realized by Circuit Emulators
(Společnost pro radioelektronické inženýrství, 2022-09)This article investigates the frequency-related fingerprints of the meminductor/capacitors and their duals realized by the circuit emulators. The direct dependency of the hysteresis loop area on the inverse of operating ... -
Lyapunov Drift-Plus-Penalty Based Resource Allocation in IRS-Assisted Wireless Networks with RF Energy Harvesting
(Společnost pro radioelektronické inženýrství, 2022-09)We propose a resource allocation policy for intelligent reflective surface (IRS)-assisted wireless powered communication network (WPCN) where the energy harvesting (EH) users (EHUs) have finite energy storage and data ... -
Energy Efficiency Optimization for D2D Underlay Communication in Distributed Antenna System over Composite Fading Channels
(Společnost pro radioelektronické inženýrství, 2022-09)Device-to-Device (D2D) communication is a potential technology to improve the spectral and energy efficiency (EE) of communication networks. In this paper, we study energy-efficient power allocation (PA) schemes in uplink ... -
Unified Expression of the Conjugate Image Impedances for Two-port Representations
(Společnost pro radioelektronické inženýrství, 2022-09)Conjugate image impedances are used to minimize power reflections in a variety of domains, including amplifier design, microwave engineering, wireless power transfer, antenna design and millimeter wave applications. For a ... -
Design of Compact Patch Antenna Based on Support Vector Regression
(Společnost pro radioelektronické inženýrství, 2022-09)In this paper, support vector regression (SVR) algorithm is used for compact patch antenna design. By etching three T-shaped slots on the ground plane of a rectangle patch antenna, the current distribution on the ground ... -
Increase of the Lifetime of Wireless Sensor Network using Clustering Algorithm and Optimal Path Selection Method
(Společnost pro radioelektronické inženýrství, 2022-09)By the recent improvement of the internet of things (IoT), the need to implement wireless networks is increasing. It is a challenge to balance between battery lifetime of the different sensors and network lifetime. Many ... -
Least Perturbation Based Method of Multi-Objective Null Placement in Linear Antenna Array Using Evolutionary Algorithms
(Společnost pro radioelektronické inženýrství, 2022-09)The paper proposes a novel least perturbation based method of constrained null placement for a non-uniformly excited linear antenna array. Synthesis of am¬plitude and phase of edge element using least perturbation based ... -
Implementation of a Highly Selective Microstrip Diplexer with Low Insertion Loss Using Square Open-Loop Resonators and a T-Junction Combiner
(Společnost pro radioelektronické inženýrství, 2022-09)In this paper, the design and hardware implementation of a squared open-loop resonator (SOLR)-based microstrip diplexer with high isolation, low insertion loss, and high selectivity are introduced. We employed four SOLRs, ...