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29,939 Article Results

Cost-efficient reconfigurable geometrical bus interconnection system for many-core platforms

10.11591/ijres.v10.i2.pp77-89
Tirumale Ramesh , Khalid Abed
System-on-chip (SoC) embedded computing platforms can support a wide range of next generation embedded artificial intelligence and other computationally intensive applications. These platforms require cost effective interconnection network. Network-on-chip has been widely used today for on-chip interconnection. However, it is still considered expensive for large system sizes. As full bus-based interconnection has high number of bus connections, reduced bus connections might offer considerable implementation economies with relatively small design cost for field programmable gate arrays (FPGAs) based embedded platforms. In this paper, we propose a cost efficient generalized reconfigurable bus-based interconnection for many-core system with reduced number of bus connections. We generalize the system with b =min {n,m}/k number of interconnect buses in which where n is the number of processor cores, m is the number of memory-modules and k is the general bus reduction factor. We present four geometrical interconnect configurations and provide their characterization in terms of memory bandwidth, cost per bandwidth and bus fault tolerance for various system sizes. Our results show that these configurations provide reduced cost per bandwidth and can achieve higher system throughput with bus cache.
Volume: 10
Issue: 2
Page: 77-89
Publish at: 2021-07-01

Analysis of design goals of cryptography algorithms based on different components

10.11591/ijeecs.v23.i1.pp540-548
Ali Mohammad Norouzzadeh Gil Molk , Mohammad Reza Aref , Reza Ramazani Khorshiddoust
Cryptography algorithms are a fundamental part of a cryptographic system that is designed and implemented to increase information security. They are the center of attention of experts in the information technology domains. Although the cryptography algorithms are implemented to attainthe goals such as confidentially, integrity and authenticity of designing, but other matters that must be noticed by designers include speed, resource consumption, reliability, flexibility, usage type and so on. For the useful allocation of hardware, software, human resources, etc., it is important to identify the role of each of the factors influencing the design of cryptographic algorithms to invest in the development of cryptographic knowledge.This paper examines 1700 papers, documents and technical reports of international journals in the specific lengthy period (1978-2019), and the goal of the design and implementation of cryptography algorithms in a different period is extracted. Using a statistical population that consists of time and the number of documents in a long time and also avariety of data, leads this study to have a reliable result and attract the attention of designers.The results show that in recent years, attention tonew usage such as IoT and telemedicine, as well as lightweight cryptography, has increased to achieve the main goals.
Volume: 23
Issue: 1
Page: 540-548
Publish at: 2021-07-01

Comparing reliabilities of centralized and distributed switching architectures for reconfigurable 2D arrays

10.11591/ijres.v10.i2.pp123-129
Behrooz Parham
Whether used as main processing engines or as special-purpose adjuncts, processor arrays are capable of boosting performance for a variety of computation-intensive applications. For large processor arrays, needed to achieve the required performance level in the age of big data, processor malfunctions, resulting in loss of computational capabilities, form a primary concern. There is no shortage of alternative reconfiguration architectures and associated algorithms for building robust processor arrays. However, a commensurately extensive body of knowledge about the reliability modeling aspects of such arrays is lacking. We study differences between 2D arrays with centralized and distributed switching, pointing out the advantages of the latter in terms of reliability, regularity, modularity, and VLSI realizability. Notions of reliability inversion (modeling uncertainties that might lead us to choose a less-reliable system over one with higher reliability) and modelability (system property that makes the derivation of tight reliability bounds possible, thus making reliability inversion much less likely) follow as important byproducts of our study.
Volume: 10
Issue: 2
Page: 123-129
Publish at: 2021-07-01

Comparison of ESP programming platforms

10.11591/csit.v2i2.p77-86
Filip Rak , Jozef Wiora
The growing popularity of ESP boards has led to the development of several programming platforms. They allow users to develop applications for ESP modules in different programming languages, such as C++, C, Lua, MicroPython, or using AT commands. Each of them is very specific and has different advantages. The programming style, efficiency, speed of execution, level of advancement, or memory usage will differ from one language to another. Users mostly base their choice depending on their programming skills and goals of the planned projects. The aim of this work is to determine, which language is the best suitable for a particular user for a particular type of project. We have described and compared the mentioned languages. We have prepared test tasks to indicate quantified values. There is no common rule because each of the languages is intended for a different kind of user. While one of the languages is slower but simpler in usage for a beginner, the other one requires broad knowledge but offers availability to develop very complex applications.
Volume: 2
Issue: 2
Page: 77-86
Publish at: 2021-07-01

Design and simulation of high-swing fully differential telescopic Op-Amp

10.11591/csit.v2i2.p49-57
Zahra Pezeshki
This article describes the process of design and simulation of a high-swing fully differential telescopic operational amplifier (Op-Amp). Due to the common gate-common Source (CG and CS) cascode structure, the gain is very high. To maximize this gain, the load must also be selected such as two current sources. This circuit has the higher voltage in output than current Op-Amps in accordance with desirable characteristics. The loss of power of this operating amplifier are very low and in milliwatts. With use of a power supply of 1.8 V, it achieves a high-swing 1.2 V, a differential gain of 76.333 dB, and 50 dB CMRR. This new design through the simulations and analytically shows that the high-swing fully differential telescopic Op-Amp retains its high CMRR even at high frequencies.
Volume: 2
Issue: 2
Page: 49-57
Publish at: 2021-07-01

Smart car parking system model for urban areas

10.11591/csit.v2i2.p95-102
Rahman Atiqur
This article is on the smart car parking system. In which we going to utilize the ultrasonic sensor to distinguish the vehicle and it will assist the proprietor with finding an advantageous parking spot. Parking spots are significant in city urban areas. In view of the expansion in a huge number of vehicles, the requirement for parking spots is a need, and henceforth an earnest needs to build up a system that can deal with these parking spots. To determine these necessities we build up a system to show the empty path in the parking spots. This includes a system that incorporates an ultrasonic sensor, raspberry pi 4, wifi-module, and a led show outside the vehicle parking entryway. Parking spots are observed by the staff of the concerned power. The paper incorporates the subtleties of parts that are utilized and about the working of this system. The paper likewise shows that our system's looking through an ideal opportunity to locate a free spot is more productive than some other existing system.
Volume: 2
Issue: 2
Page: 95-102
Publish at: 2021-07-01

Realtime monitoring for groundwater level and local climate based on universal communication system

10.11591/csit.v2i2.p67-76
Rony Teguh , Hepryandi Usup
The groundwater level and weather patterns and climate conditions are several of the very significant factors which influence the quality of livelihood and the other activity of the tropical peatland environment. The current method of groundwater level and meteorological information aggregate build the use of certain expensive weather station devices, prominent to a lack of vast monitoring suitable to cost barriers and disturbance in some countries. In this research, we have developed and implemented a hardware module based on an Arduino microcontroller and mobile communication, which measures the groundwater level and meteorological data, including air temperature, air humidity, and soil temperature, and humidity, rainfall in peatland area. The data groundwater level is received by a specially developed application interface running on an internet of things (IoT) connected through a global mobile system (GSM) communication. In this work, our proposed system is a model system that can able to generate alerts based on the real-time groundwater level and data weather as potential peat fire in Indonesia. It provides online and data real-time monitoring. In this works, we have resulted in a system to monitor the groundwater level and data weather alert, condition mapping, and warn the people from its disastrous effects.
Volume: 2
Issue: 2
Page: 67-76
Publish at: 2021-07-01

Designing a secured audio based key generator for cryptographic symmetric key algorithms

10.11591/csit.v2i2.p87-94
Avinash Krishnan Raghunath , Dimple Bharadwaj , M Prabhuram , Aju D
Cryptography is a technique to secure data transmissions and ensure confiden-tiality, authenticity and integrity of data exchanged over the digital networks by utilizing mathematical algorithms to transform the plain text (original message) to cipher text (encrypted message) using a key or seed value. The general con-sensus regarding the use of non-deterministic true random numbers (TRN) which are generated from the physical environment such as entropy keys, at-mospheric noise, etc., as a public or private key has received limited encour-agement due to the demanding hardware requirements needed to extract the necessary data from the environment. Therefore, this research aims at design-ing and developing a lightweight program to generate a true random number (TRNG) key using live audio recordings which is further randomized using system date and time. These TRNs can be used to replace the deterministic pseudo random number cryptographic keys that are presently used by indus-tries for a symmetric key encryption algorithm which devolves the algorithm to being conditionally secured. Using the audio based TRNG key would render the same encryption algorithm as unconditionally secured.
Volume: 2
Issue: 2
Page: 87-94
Publish at: 2021-07-01

Enhancing three variants of harmony search algorithm for continuous optimization problems

10.11591/ijece.v11i3.pp2343-2349
Alaa A. Alomoush , Abdul Rahman A. Alsewari , Kamal Z. Zamli , Ayat Alrosan , Waleed Alomoush , Khalid Alissa
Meta-heuristic algorithms are well-known optimization methods, for solving real-world optimization problems. Harmony search (HS) is a recognized meta-heuristic algorithm with an efficient exploration process. But the HS has a slow convergence rate, which causes the algorithm to have a weak exploitation process in finding the global optima. Different variants of HS introduced in the literature to enhance the algorithm and fix its problems, but in most cases, the algorithm still has a slow convergence rate. Meanwhile, opposition-based learning (OBL), is an effective technique used to improve the performance of different optimization algorithms, including HS. In this work, we adopted a new improved version of OBL, to improve three variants of Harmony Search, by increasing the convergence rate speed of these variants and improving overall performance. The new OBL version named improved opposition-based learning (IOBL), and it is different from the original OBL by adopting randomness to increase the solution's diversity. To evaluate the hybrid algorithms, we run it on benchmark functions to compare the obtained results with its original versions. The obtained results show that the new hybrid algorithms more efficient compared to the original versions of HS. A convergence rate graph is also used to show the overall performance of the new algorithms.
Volume: 11
Issue: 3
Page: 2343-2349
Publish at: 2021-06-01

The permissive non-parental childcare and moral intelligence: Indonesian setting

10.11591/ijere.v10i2.21032
Falakhul Auliya , Yuli Kurniawati Sugiyo Pranoto , Sunawan Sunawan , Ali Sunarso
Most parents in Indonesia are unable to provide maximum care for their children while working. Childcare includes fostering moral intelligence, which is carried out by grandmothers, household assistants, and daycare assistants. Furthermore, 178 young children (95 males and 83 females) and 178 caregivers (68 grandmothers, 54 household assistants, and 56 daycare assistants) were involved in the study. Simple regression analysis was used to examine parenthood on moral intelligence, and moderator analysis was used to test permissive non-parental childcare and moral intelligence in early childhood. The results showed that authoritative and permissive parenthood has an effect on moral intelligence and that the effects of permissiveness on moral intelligence are only moderately influenced. Permissive non-parental childcare and moral intelligence apply to the group of grandmothers and household assistants. The research provides a detailed description of the role of predictors on moral intelligence in non-parental care.
Volume: 10
Issue: 2
Page: 569-575
Publish at: 2021-06-01

Performance analysis and enhancement of direct power control of DFIG based wind system

10.11591/ijpeds.v12.i2.pp1034-1044
Mohamed Amine Beniss , Hassan El Moussaoui , Tijani Lamhamdi , Hassane El Markhi
The paper proposes a complete modeling and control technique of variable speed wind turbine system (WTS) based on the doubly fed induction generator (DFIG). Two levels back-to-back converter is used to ensure the energy transfer between the DFIG rotor and the grid. The wind turbine to operate efficiently, a maximum power point tracking (MPPT) algorithm is implemented. Then, direct power control (DPC) strategy has been combined with the MPPT technique in order to guarantee the selection of the appropriate rotor voltage vectors and to minimize the active and reactive power errors. Finally, the simulation is performed by using MATLAB/simulink platform basing on 7.5KW DFIG wind generation system, and the results prove the effectiveness of our proposed control technique.
Volume: 12
Issue: 2
Page: 1034-1044
Publish at: 2021-06-01

Healthy family index assessment through community-based health information system approach

10.11591/ijphs.v10i2.20751
Rico Kurniawan , Ryza Jazid Baharuddin Nur , Sayekti Yuliyanti , Dion Zein Nuridzin , Neng Tine Kartinah
The healthy Indonesia program with a family approach (PIS-PK) has not been implemented optimally. There are several obstacles and challenges in this program’s implementation, e.g., human resources. A community-based health information system (CBHIS) is a strategic approach to obtain data and information at the population level by directly involving cadres and the community. A project with the CBHIS approach was implemented in Kasemen Village, Serang, Banten Province, Indonesia to support the PIS-PK program. The study aimed to determine the population’s health status according to the healthy family index through the CBHIS approach. The data of healthy family indicators in the village were collected by cadres using a mHealth application. Overall, 1316 households consisting of 5312 residents were registered. The analysis results of the healthy family index showed that most families in the Kasemen subdistrict were pre-healthy (64.2%), almost one third were unhealthy (27.8%) and only a small proportion were healthy (8%). Assessing the healthy family index through the CBHIS approach can support decision-making at the community level, thereby determining the magnitude of family health problems and providing appropriate interventions to improve community health status. Well-trained cadres equipped with better electronic data collection tools may be an alternative to community-based data collection.
Volume: 10
Issue: 2
Page: 394-400
Publish at: 2021-06-01

Improving neural network using a sine tree-seed algorithm for tuning motor DC

10.11591/ijpeds.v12.i2.pp1196-1204
Widi Aribowo , Bambang Suprianto , Joko Joko
A DC motor is applied to delicate speed and position in the industry. The stability and productivity of a system are keys for tuning of a DC motor speed. Stabilized speed is influenced by load sway and environmental factors. In this paper, a comparison study in diverse techniques to tune the speed of the DC motor with parameter uncertainties is showed. The research has discussed the application of the feed-forward neural network (FFNN) which is enhanced by a sine tree-seed algorithm (STSA). STSA is a hybrid method of the tree-seed algorithm (TSA) and Sine Cosine algorithm. The STSA method is aimed to improve TSA performance based on the sine cosine algorithm (SCA) method. A feed-forward neural network (FFNN) is popular and capable of nonlinear issues. The focus of the research is on the achievement speed of DC motor. In addition, the proposed method will be compared with proportional integral derivative (PID), FFNN, marine predator algorithm-feed-forward neural network (MPA-NN) and atom search algorithm-feed-forward neural network (ASO-NN). The performance of the speed from the proposed method has the best result. The settling time value of the proposed method is more stable than the PID method. The ITAE value of the STSA-NN method was 31.3% better than the PID method. Meanwhile, the ITSE value is 29.2% better than the PID method.
Volume: 12
Issue: 2
Page: 1196-1204
Publish at: 2021-06-01

An efficient predictive current controller with adaptive parameter estimation in 3-ϕ inverter

10.11591/ijpeds.v12.i2.pp858-869
Haddar Mabrouk , Allaoua Boumediene
In this paper, a detail design and description of a predictive current control scheme are adopted for three-phase grid-connected two-level inverter and its application in wind energy conversion systems. Despite its advantages, the predictive current controller is very sensitive to parameter variations which could eventually affected on system stability. To solve this problem, an estimation technique proposed to identify the value of harmonic filter parameter based on Model reference adaptive system (MRAS). Lyapunov stability theory is selected to guarantee a robust adaptation and stable response over large system parameter variation. The simulation results shows the efficiency of the proposed techniques to improve the current tracking performance.
Volume: 12
Issue: 2
Page: 858-869
Publish at: 2021-06-01

Outage performance of underlay cognitive radio networks over mix fading environment

10.11591/ijece.v11i3.pp2019-2026
Nguyen Hong Nhu , Cuu Ho Van , Van-Duc Phan , Tan N. Nguyen , Miroslav Voznak , Jaroslav Zdralek
In this paper, the underlay cognitive radio network over mix fading environment is presented and investigated. A cooperative cognitive system with a secondary source node S, a secondary destination node D, secondary relay node Relay, and a primary node P are considered. In this model system, we consider the mix fading environment in two scenarios as Rayleigh/Nakagami-m and Nakagami-m/Rayleigh Fading channels. For system performance analysis, the closed-form expression of the system outage probability (OP) and the integral-formed expression of the ergodic capacity (EC) are derived in connection with the system's primary parameters. Finally, we proposed the Monte Carlo simulation for convincing the correctness of the system performance.
Volume: 11
Issue: 3
Page: 2019-2026
Publish at: 2021-06-01
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