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30,907 Article Results

Performance evaluation of embedded ethernet and Controller Area Network (CAN) in real time control communication system

10.11591/ijres.v8.i1.pp36-50
Ching Chia Leong , Mohamad Khairi Ishak
Real-time communication is important in control network. In real-time communication, message need to be delivered from source to destination within specification. Embedded Ethernet and Controller Area Network (CAN) protocol can be used in control network to achieve hard real-time communication. For embedded Ethernet protocol, Carrier Sense Multiple Access with Collision Detection (CSMA/CD) is the media access control (MAC) used to control data transmission between nodes in network. Back-off algorithm in CSMA/CD is used to handle packet collisions and retransmission. For CAN protocol, it is communication protocol developed mainly for automotive application. It has priority arbitration to handle collisions and retransmission. In this project, embedded Ethernet network models and CAN network models are developed and simulated in MATLAB Simulink software. Several back-off algorithms, which are Binary Exponential Backoff (BEB), Linear Back-off Algorithm, Exponential-Linear back-off Algorithm and Logarithm Back-off Algorithm are proposed and implemented into Embedded Ethernet network model to evaluate the performance. Both embedded Ethernet and CAN network models are extended to 3 nodes, 10 nodes, and 15 nodes to evaluate performance at different network condition. The performance criteria evaluated and discussed are average delay and jitter of packets. The results show that in network with high number of nodes, Linear Back-off Algorithm and Exponential-Linear back-off Algorithm shows improvement in packets delay and jitter. For CAN network, the packet jitter is relatively low.
Volume: 8
Issue: 1
Page: 36-50
Publish at: 2019-03-01

Design of a 60 GHz power amplifier in a 45nm CMOS

10.11591/ijres.v8.i1.pp14-26
Rashmi S. B. , Siva S. Yellampalli
This Paper presents a design and implementation of class-AB power amplifier which works at 60GHz unlicensed frequency band. This power amplifier uses a MOSFET from gpdk45 technology library. The design simulation is done by cadence Analog Design Environment. This proposed power amplifier yields a power added efficiency of 23.45% and a power gain S21 of 10dB at 60GHz. The output impedance of proposed power amplifier is needs to be matched with 73Ω antenna impedance. The S22 output matching of the simulated power amplifier is -18dB at 60GHz. The input side is matched to arbitrary impedance of 50Ω the resulting S11 of simulated result is noted to be -15dB at 60GHz. The proposed circuit has a noise figure of 3.85dB. The proposed circuit has a Pout-1dB of 8.5dBm. the designed class AB power amplifier is an important component in 60GHz transceiver. The layout of the associated circuit is drawn with the total size of 0.107um2.
Volume: 8
Issue: 1
Page: 14-26
Publish at: 2019-03-01

Small signal fault analysis for renewable energy (Wind) power system distributed generation by using MATLAB software (Simulink)

10.11591/ijeecs.v13.i3.pp1337-1344
Ameerul A. J. Jeman , Naeem M. S. Hannoon , Nabil Hidayat , Mohamed.M.H. Adam , Ismail Musirin , Vijayakumar. V
In distribution system, wind power plants are becoming popular renewable energy sources. It employs Doubly Fed Induction Generator (DFIG) to generate power based on wind conversion. Short and long transmission lines, presence of faults and presence of Static Synchronous Compensator (STATCOM) are highlighted issues in this paper. Basically, this research develops investigations on some electrical variables such as voltage and current to control them. Distribution Static Synchronous Compensator (DSTATCOM) is proposed in this paper. Wind farm acts as a source while DSTATCOM is connected to the distribution system with a DFIG based wind farm. The controller proposed is DSTATCOM is modeled and simulated in MATLAB/SIMULINK and the results are given. A microgrid based small signal analysis is performed in the laboratory using MATLAB and different comparisons are made and simulation case studies are presented and validated.
Volume: 13
Issue: 3
Page: 1337-1344
Publish at: 2019-03-01

An overview of designing an induction heating system for domestic applications

10.11591/ijpeds.v10.i1.pp351-356
V Geetha , V Sivachidambaranathan
The inherent benefit of the induction heating system leads to usage in the domestic applications. The design part of the coil has to be accurately manipulated to have highly qualified system. Discussion on the customisation of the coil and the converter section is elaborated such that the design relaying on the load variation, type of coil, rating required for the specified application. Thus the paper discusses about the design requirement on the domestic induction applications, depicting the criteria to be satisfied and the results are verified using the AC-AC converter fed induction heating system with the help of the equivalent circuit of the working coil and the work piece.
Volume: 10
Issue: 1
Page: 351-356
Publish at: 2019-03-01

Determination of pre-service science teachers’ attitudes towards reading science texts

10.11591/ijere.v8i1.16856
Şendil Can , Gülperi Öztürk
The purpose of the current study is to determine the effects of the variables such as gender, grade level, grade point average and book reading frequency on pre-service science teachers’ attitudes towards science texts. The sampling of the current study is comprised of 103 pre-service science teachers enrolled at the Education Faculty of Muğla Sıtkı Koçman University in the spring term of 2017-2018 academic year. In the current study, in order to determine the pre-service teachers’ attitudes towards reading science texts, “The Scale of Attitudes towards Reading Science Texts” was used. The effects of gender and grade level on the pre-service science teachers’ attitudes towards reading science texts were analyzed with independent samples t-test and the effects of academic achievement and book reading frequency were analyzed with one-way variance analysis (ANOVA). As a result of the study, it was concluded that the gender and grade level variables have significant effects on the pre-service teachers’ attitudes towards reading science texts in the sub-dimensions of making use of science texts when possible, denial and contribution of reading science texts to learning and skills and that the general grade point average and book reading frequency have significant effects on the pre-service teachers’ attitudes towards reading science texts in the sub-dimension of making use of science texts when possible.
Volume: 8
Issue: 1
Page: 181-188
Publish at: 2019-03-01

Design and implementation of nonlinear integral backstepping control strategy for single-phase grid-connected VSI

10.11591/ijpeds.v10.i1.pp19-26
Moussa Reddak , Abdelouahed Mesbahi , Ayoub Nouaiti , Abdelmajid Berdai
This paper presents the design and the implementation of a nonlinear integral backstepping control strategy for a single-phase grid-connected voltage source inverter (VSI). The proposed control strategy aims to resolve the problem of the sinusoidal reference current tracking, to have a rapid transient response needed to deal with the transient incident such as grid voltage drops and to generate into the grid a current with fewer harmonics. These properties are verified by seeking the direction, the amplitude and the transient response of the injected grid current. An experimental VSI prototype is used to validate the effectiveness of the proposed controller, basing on a digital signal processor DSP microcontroller. The achieved results show that the well- obtained properties satisfy the grid current injection conditions.
Volume: 10
Issue: 1
Page: 19-26
Publish at: 2019-03-01

Verilog based efficient convolution encoder and viterbi decoder

10.11591/ijres.v8.i1.pp75-80
Md. Abdul Rawoof , Umasankar Ch. , D. Naresh Kumar , D. Khalandar Basha , N. Madhur
In the today’s digital communication Systems, transmission of data with more reliability and efficiency is the most challenging issue for data communication through channels. In communication systems, error correction technique plays a vital role. In error correction techniques, The capacity of data can be enhanced by adding the redundant information for the source data while transmitting the data through channel. It mainly focuses on the awareness of convolution encoder and Viterbi decoder. For decoding convolution codes Viterbi algorithm is preferred.
Volume: 8
Issue: 1
Page: 75-80
Publish at: 2019-02-11

Design and software characterization of finFET based full adders

10.11591/ijres.v8.i1.pp51-60
Raju Hajare , C. Lakshminarayana
Adder is the most important arithmetic block that are used in all processors. Most of the logical circuits till today were designed using Metal Oxide Semiconductor Field Effect Transistors (MOSFET’s). In order to reduce chip area, leakage power and to increase switching speed, MOSFET’s were continuously scaled down. Further scaling below 45nm, MOSFET’s suffers from Short Channel Effects (SCE’s) which leads to degraded performance of the device. Here the Performance of 28T and 16T MOSFET based 1-bit full adder cell is characterized and compared with FinFET based 28T and 16T 1-bit full adders at various  technology nodes using HSPICE software. Results show that FinFET based full adder design gives better performance in terms of speed, power and reliability compared to MOSFET based full adder designs. Hence FinFET are promising candidates and better replacement for MOSFET.
Volume: 8
Issue: 1
Page: 51-60
Publish at: 2019-02-11

Secured smart ATM transaction

10.11591/ijres.v8.i1.pp61-74
C. R. Balamurugan , K. Ramash kumar , A. Thirumalai
The objective of this paper is to reduce the service tax during mobile transactions. To improve the security and to make the process easy and less time consuming this process is rendered with the help of GSM (Global System for Mobile communication), finger print sensors, PIC16F877A microcontroller and aadhaar number.
Volume: 8
Issue: 1
Page: 61-74
Publish at: 2019-02-11

Wearable antenna gain enhancement using reactive impedance substrate

10.11591/ijeecs.v13.i2.pp708-712
A.N. Suraya , T. Sabapathy , M. Jusoh , N.H. Ghazali , M.N. Osman , S. Ismail , M. R. Awal
A microstrip patch antenna is designed for a wearable antenna. The performance of microstrip patch antenna loaded with reactive impedance surface (RIS) is described in terms of gain, bandwidth and return loss. The antenna is investigated in two conditions which are conventional microstrip antenna with RIS and without RIS. The designed antenna is also aimed at size reduction therefore it will be suitable for a wearable application. This antenna which is made fully using textile and it is designed for operation in the 2.45 GHz band. The performance of microstrip patch antenna loaded with RIS is described in terms of gain, bandwidth, return loss and radiation pattern. The antenna designed with RIS operates at 2.45 GHz. Bandwidth enhancement is achieved with RIS where the designed antenna can cater frequency from 2.4 GHz to 3 GHz. A gain enhancement is achieved of 20% is achieved compared with the conventional patch antenna. Although the size of the patch is reduced with the introduction of RIS, the overall size of the antenna with the substrate is almost similar to the conventional patch antenna. However, the performance of the antenna is greatly enhanced with the use of RIS.
Volume: 13
Issue: 2
Page: 708-712
Publish at: 2019-02-01

Development of soil moisture measurement with wireless sensor web-based concept

10.11591/ijeecs.v13.i2.pp514-520
Julham Julham , Hikmah Adwin Adam , Arif Ridho Lubis , Muharman Lubis
Measurement of soil moisture commonly by applying the soil moisture sensors is to measure the condition of the ground around which is relatively not wide. Therefore if applied for the large-scale, repeated measurements are required in accordance with the determined point. As a result it takes time to get the whole results. With the existence of wireless sensor technology then this problem can be overcome. This wireless sensor system will create a network consisting of nodes and server. In this study the server part is a server computer that requires a web server application together with its script to display and store data, while the node part is the data reader system. In the data system reader module, the sensor device is required as the input that is SEN0114, the processor is a microcontroller, while the wireless uses Wi-Fi module that is ESP8266. Wi-Fi topology used later is infrastructure (using access points). In this research, it begins by testing the sensor and then testing the data validation between the node and the server. SEN0114 sensor has different value from the American Standard Method (ASM) that is 0.922%. While the data validation test of the measurement result is Wi-Fi ESP8266 module which has a maximum distance of 14 meters toward the access points.
Volume: 13
Issue: 2
Page: 514-520
Publish at: 2019-02-01

Compressed fuzzy logic based multi-criteria AODV routing in VANET environment

10.11591/ijece.v9i1.pp397-401
Taqwa Oday Fahad , Abduladhem A. Ali
Vehicular ad hoc networks (VANETs) are the core of intelligent transportation systems (ITS) to obtain safety, better transportation services, and improved traffic management. Providing more reliable and efficient on demand routing protocol is one of the main challenges in these networks research scope. This paper argues a compressed fuzzy logic based method to enhance Ad hoc on demand distance vector (AODV) routing decision by jointly considering number of relays, distance factor, direction angle, and vehicles speed variance. The proposed scheme is simulated in both freeway and urban scenarios with different number of vehicles using real time interaction between both OMNet++ and SUMO simulators. Simulation results show that the proposed approach can get better performance in terms of packet delivery ratio, throughput, mean delay, and number of sent control packets.
Volume: 9
Issue: 1
Page: 397-401
Publish at: 2019-02-01

Theoretical and experimental analysis of electromagnetic coupling into microwave circuit

10.11591/ijece.v9i1.pp181-189
Ilham Zerrouk , Mohamed Amellal , Amine Amharech , Mohamed Ramdani , Hassane Kabbaj
In this paper, our work is devoted to a time domain analysis of field-to-line coupling model. The latter is designed with a uniform microstrip multiconductor transmission line (MTL), connected with a mixed load which can be linear as a resistance, nonlinear like a diode or complex nonlinear as a Metal Semiconductor Field-Effect Transistor (MESFET). The finite difference time-domain technique (FDTD) is used to compute the expression of voltage and current at the line. The primary advantage of this method over many existing methods is that nonlinear terminations may be readily incorporated into the algorithm and the analysis. The numerical predictions using the proposed method show a good agreement with the GHz Transverse Electro Magnetic (GTEM) measurement.
Volume: 9
Issue: 1
Page: 181-189
Publish at: 2019-02-01

Dashboard of intelligent transportation system (ITS) using mobile agents strategy on notification authentication process

10.11591/ijece.v9i1.pp621-628
Najia Allali , Zineb Chaouch , Mohammed Tamali
Extracting accurate information from huge Transportation Database need to build efficiency Intelligent Transportation Systems ITS-Dashboard that should allow making correct decisions. The quality of decision and the achievement of performance depend on the quality of the information supplied. This information must be reliable, complete, pertinent and more to care about external attacks. Distributed Mobile Agent consists of autonomy of entities with capacities of perception, cooperation and action on their own environment. One of Agent function is the security of Authentication process by activation of notification system on Mobile Device. The main purpose of this paper is to make it consisting of an Agent Based Framework. The strategy is to exploit Mobile Agent capabilities in a Strict Notification Process when user validates his authentication request.
Volume: 9
Issue: 1
Page: 621-628
Publish at: 2019-02-01

Experiment study of water based photovoltaic-thermal (PV/T) collector

10.11591/ijece.v9i1.pp118-125
Nur Farhana Mohd Razali , Ahmad Fudholi , Mohd Hafidz Ruslan , Kamaruzzaman Sopian
Solar radiation can be converted to the electrical energy and thermal energy by photovoltaic panel and solar collector. In this experiment, PV/T collector was designed, fabricated and tested its performance. The experiment conducted on PV/T collector with water flow at mass flow rate 0.012 kg/s to 0.0255 kg/s. The water flow with the stainless stell absorber help the PV/T collector in increasing the convection of thermal heat transfer. The power output increase with increase of radiation. The efficiency of PVT varies with different intensity of radiation which stated in this experiment for 750 W/m2 and 900 W/m2. The analysis of energy and exergy are excuted and results show energy output for water based PV/T collector are 346 W for solar radiation 700 W/m2 and 457 W for solar radiation 900 W/m2.  Meanwhile the total exergy output compared to the PV panel without stainless stell absorber, which the exergy increased by 22.48% for 700 W/m2 and 20.87% for 900 W/m2.
Volume: 9
Issue: 1
Page: 118-125
Publish at: 2019-02-01
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