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29,065 Article Results

WareWise: Business Development Management Framework based on Device-to-Device Industrial Internet of Things

10.11591/ijeecs.v8.i3.pp747-750
Ramesh P. , V. Mathivanan
Internet of Things (IoT) - empowered data framework arrangements are developing in different spaces, for example, remote social insurance, keen coordination’s, farming et cetera. In the mean time, Business Development Management Frameworks (BDMF) has turned out to be promising instruments for driving and overseeing gadgets inside IoT frameworks. Be that as it may, past works have not completely tended to how the IoT-based BDMF can proceed with their execution when the included IoT gadgets don't have a dependable Internet association. In this paper, we propose a framework outline for decentralized device to device (D2D) - based BD execution, where versatile hubs have the ability of both executing BDs additionally moving BD execution to different hubs amid runtime. We apply this plan to the field of shrewd coordination’s, keeping in mind the end goal to empower savvy products checking. The exhibited merchandise observing arrangement empowers responding to occasions when they happen, while likewise producing a hint of the checking execution history. A model concentrating on the movement usefulness of the stage has been actualized and tried to assess its execution with regards to the specified savvy coordination’s situation.
Volume: 8
Issue: 3
Page: 747-750
Publish at: 2017-12-01

A Portable Insole Pressure Mapping System

10.12928/telkomnika.v15i4.7227
Kian; Universiti Tun Hussein Onn Malaysia Sek Tee , Yogindra; Universiti Tun Hussein Onn Malaysia Syam Hari Javahar , Hashim; Universiti Tun Hussein Onn Malaysia Saim , Wan; Universiti Tun Hussein Onn Malaysia Nurshazwani Wan Zakaria , Safinaz; University Kebangsaan Malaysia Binti Mohd Khialdin , Hazlita; University Kebangsaan Malaysia Isa , M.; Ain Shams University I. Awad , Chin; Universiti Tun Hussein Onn Malaysia Fhong Soon
The human locomotion is studied through gait analysis and is best observed instrumentally rather than observing visually. Thus, a portable insole pressure mapping system is built to assist in studying the human gait cycle. The pressure distribution is determined by instrumentally mapping the insole using force sensitive resistive sensors that are connected to Arduino UNO via cables. The values are saved into a secure digital card that could be post processed. Hardware and software design phase are executed for the development of this project. The outcomes match to the knowledge of human gait definitions in static posture and normal walking.
Volume: 15
Issue: 4
Page: 1493-1500
Publish at: 2017-12-01

A Load-Balanced Parallelization of AKS Algorithm

10.12928/telkomnika.v15i4.6049
Ardhi Wiratama; Universitas Gadjah Mada, Indonesia Baskara Yudha , Reza; Universitas Gadjah Mada, Indonesia Pulungan
The best known deterministic polynomial-time algorithm for primality testing right now is due to Agrawal, Kayal, and Saxena. This algorithm has a time complexity O(log^{15/2}(n)). Although this algorithm is polynomial, its reliance on the congruence of large polynomials results in enormous computational requirement. In this paper, we propose a parallelization technique for this algorithm based on message-passing parallelism together with four workload-distribution strategies. We perform a series of experiments on an implementation of this algorithm in a high-performance computing system consisting of 15 nodes, each with 4 CPU cores. The experiments indicate that our proposed parallelization technique introduce a significant speedup on existing implementations. Furthermore, the dynamic workload-distribution strategy performs better than the others. Overall, the experiments show that the parallelization obtains up to 36 times speedup. 
Volume: 15
Issue: 4
Page: 1883-1894
Publish at: 2017-12-01

Investigating Maturity State and Internal Properties of Fruits Using Non-destructive Techniques-a Review

10.12928/telkomnika.v15i4.7236
Mohd; Universiti Tun Hussein Onn, Malaysia Fadzli Abd Shaib , Ruzairi; Universiti Tun Hussein Onn, Malaysia Abdul Rahim , S.; Universiti Tun Hussein Onn, Malaysia Z. M. Muji , Azian; Universiti Teknologi Malaysia, Malaysia Abd Aziz Ahmad
The evaluation of internal condition of the fruit via destructive techniques mostly damaged the internal and external fruit structure. However, there are several non-destructive techniques available could be applied in the agricultural industry, specifically for observing internal fruit conditions. Different kinds of internal conditions of fruits are evaluated in terms of their quality and ripeness levels. These non-destructive techniques include fruit evaluation via ultrasonic measurement techniques, light spectroscopy, imaging via Magnetic Resonance Imaging (MRI) and X-Ray, computer vision, electric nose and also vibration. The capabilities and the effectiveness of these techniques towards fruit monitoring are thoroughly discussed. Besides, the drawback of these non-destructive technique has been analysed.
Volume: 15
Issue: 4
Page: 1574-1584
Publish at: 2017-12-01

Investigation of the Optimal Position of Wind Sensors and Wind Turbines on a Building: A Computational Fluid Dynamics Study

10.11591/ijeecs.v8.i3.pp756-761
Leon Chan , Mohd Eqwan Bin Mohd Roslan , Hassan Bin Mohamed
Most numerical studies on flow over buildings simplify the geometry of the roof and assume that it is flat. This may lead to misrepresentation of the flow as the roof of actual buildings contains some sort of roughness. In this study, the flow over the administrative building of Universiti Tenaga Nasional is investigated for multidirectional flow conditions. The actual topology of the building is gridded and simulated using the steady-state Reynolds-averaged Navier-Stokes equation. Four points at the top of the building are identified and the wind statistics at these designated locations at three different heights are investigated. The optimal location with the highest average wind speed and consistent wind speeds for all wind angles is identified and is earmarked as a potential location to install the wind turbine. 
Volume: 8
Issue: 3
Page: 756-761
Publish at: 2017-12-01

The Competition Between ISPs in Presence of the Net Neutrality

10.11591/ijict.v6i3.pp166-178
Mohamed El Amrani , Hamid Garmani , Mohamed Baslam , Rachid El Ayachi
In this work, we present an economic model of computer networks that describes the in-teraction between Internet Service Providers (ISP ), customers and content provider. The competition between ISP s may be translated by the prices they require and the qualities of service (QoS) they offer. The customer demand for service from an ISP does not only de-pend on the price and quality of service (QoS) of the ISP , but it is influenced by all those offered by its competitors. This behavior has been extensively analyzed using game the-ory as a decision support tool. We interpret a non-neutral network when a content provider privileges ISP s by offering them more bandwidth to ensure proper QoS to support ap-plications that require more data transport capacity (voice over internet protocol (V OIP ) the live video streaming, online gaming). In addition, our work focuses on the price game analysis and QoS between ISP s in two cases: neutral network and non-neutral network. After showing the existence and uniqueness of equilibrium in terms of quality of service, we analyzed the impact of net neutrality on competition between ISP s. We also validated our theoretical study with numerical results, which show that the game has an equilibrium point which depends on all the parameters of the system.
Volume: 6
Issue: 3
Page: 166-178
Publish at: 2017-12-01

Compact Dual-band Parallel Coupled T-shaped SIR Filter for WLAN Applications

10.12928/telkomnika.v15i4.5584
Emad S.; University of Technology, Iraq Ahmaed
In this article, a new compact dual-band bandpass filter was introduced. The filter utilized two operating bands centered at 2.45 GHz and 5 GHz widely used for wireless local area network applications. The filter consists of T-shaped sections of step impedance resonator. The structure is an even symmetrical around electrical or magnetic wall, so the operation mechanism of the filter can be analyzed by an even- and odd-mode transmission line theory. The resonator structure is parallel coupled to a pair of 50 Ω input/output ports. Proper feeding and coupling structures can realize at least two transmission zeros around each of the operating band. To enhance the spurs rejection in the out of the band response of the filter, additive transmission zero at 10 GHz was created by adding stub of quarter guided wavelength at a selected distant from the output port edge. The filter is designed and optimized using the full wave Electromagnetic simulator. The center frequency of the designed bands can be easily refined by the filter dimensions. The overall dimension of the filter is (where  is the guided wavelength at the frequency of 2.45 GHz) corresponding to 14.3 mm x 22 mm.
Volume: 15
Issue: 4
Page: 1677-1681
Publish at: 2017-12-01

Parallel Connected VSI Inverter using Multi-carrier based Sinusoidal PWM Technique

10.12928/telkomnika.v15i4.6477
D.; SRM University, India Karthikeyan , R.; SRM University, India Palanisamy , K.; SRM University, India Vijayakumar , A.; Navodaya Institute of Technology, India Velu , D.; SRM University, India Selvabharathi
This paper explains the simulation and modelling of Parallel operation of VSI inverter using multi-carrier based PWM technique. By this proposed method three level inverter output voltages generated instead of using multilevel inverter or two level dual VSI inverter. This system employs single dc voltage source, which gives supply to both VSI inverter by using parallel connection. The multi-carrier based pulse width modulation technique affianced to control the inverter power switches. The proposed system offers improved output voltage, better current control and reduced harmonic distortion. The simulation results of this proposed system was verified using matlab/simulink.
Volume: 15
Issue: 4
Page: 1625-1631
Publish at: 2017-12-01

250 MHz Multiphase Delay Locked Loop for Low Power Applications

10.11591/ijece.v7i6.pp3323-3331
Shruti Suman , K. G. Sharma , P. K. Ghosh
Delay locked loop is a critical building block of high speed synchronous circuits. An improved architecture of amixed signaldelay locked loop (DLL) is presented here. In this DLL, delay cell based on single ended differential pair configuration is used for voltage controlled delay line (VCDL) implementation. This delay cell provides a high locking range with less phase noise and jitter due to differential pair configuration.For increasing the acquisition range and locking speed of the DLL, modified true single phase clock (TSPC) based phase frequency detector is used. The proposed design is implemented at 0.18 um CMOS technology and at power supply of 1.8V . It has power consumption of 1.39 mW at 125 MHz center frequency with locking range from 0.5 MHz to 250 MHz.
Volume: 7
Issue: 6
Page: 3323-3331
Publish at: 2017-12-01

New Watermarking/Encryption Method for Medical Imaging FULL Protection in m-Health

10.11591/ijece.v7i6.pp3385-3394
Mohamed Boussif , Nourredinne Aloui , Adnene Cherif
In this paper, we present a new method for medical images security dedicated to m-Health based on a combination between a novel semi reversible watermarking approach robust to JPEG compression, a new proposed fragile watermarking and a new proposed encryption algorithm. The purpose of the combination of these three proposed algorithms (encryption, robust and fragile watermarking) is to ensure the full protection of medical image, its information and its report in terms of confidentiality and reliability (authentication and integrity). A hardware implementation to evaluate our system is done using the Texas instrument C6416 DSK card by converting m-files to C/C++ using MATLAB coder. Our m-health security system is then run on the android platform. Experimental results show that the proposed algorithm can achieve high security with good performance.
Volume: 7
Issue: 6
Page: 3385-3394
Publish at: 2017-12-01

Fault Distance Identification Using Impedance and Matching Approaches on Distribution Network

10.11591/ijeecs.v8.i3.pp770-778
Lilik Jamilatul Awalin , H. Mokhlis , M. K. Rahmat , Sophi Shilpa , Fadi Albatsh , Bazilah Ismail
In this paper, impedance based method and matching approaches were used separately to detect three phase to ground fault (LLLGF). In order to observe the accuracy of each method, Non-homogeneous distribution network was used as a tested network. Actual data from TNB (Tenaga National Berhad) Malaysia was adopted to model the network by using PSCAD/EMTDC simulation program.  Both methods were tested to observe the accuracy of fault distance estimation. The comparison result shows different accuracy for each section which simulated in the middle of section. Based on the complexity of the distribution network, it possible to contribute difficulty to obtain the maximum accuracy. The result was obtained through the complete process which involves the database formation acquired through the PSCAD/EMTDC software simulator and the fault location distance calculation carried out by the MATLAB software.
Volume: 8
Issue: 3
Page: 770-778
Publish at: 2017-12-01

Capacitive and Inductive Line Reactance for Network Reconfiguration

10.11591/ijeecs.v8.i3.pp751-755
Aiman Suhailah Saifuddin , Karmila Kamil , Halimatun Hashim , Ruthraganapathy Radhakrishnan
Solar PV may cause power congestion to occur in a transmission line when there is high solar irradiance that causing solar PV to generate more power flow than demanded power flow. Transmission line congestion that can be made worst by adding extra power generating farm such as centralized PV farm of renewable energy which helps to deliver customers with the demand or load required. The power generated coming from solar PV is depending on the weather and can definitely worsen the flow in transmission line due to the power captured. In this case, the high solar irradiance can affect the power generated from solar PV and will cause power congestion when power generated is higher than the load demanded. In this paper, the proposed method used to overcome the power congestion in a transmission line is by rerouting the excess power from the overloaded line to underloaded line by changing the line reactance of the line. An IEEE 30 bus test system is developed in PSS/E software as the test system. The output monitored is the line stability index of the affected line before and after rerouting process.
Volume: 8
Issue: 3
Page: 751-755
Publish at: 2017-12-01

An Optimal LFC in Two-Area Power Systems Using a Meta-heuristic Optimization Algorithm

10.11591/ijece.v7i6.pp3217-3225
Mushtaq Najeeb , Muhamad Mansor , Hameed Feyad , Esam Taha , Ghassan Abdullah
In this study, an optimal meta-heuristic optimization algorithm for load frequency control (LFC) is utilized in two-area power systems. This meta-heuristic algorithm is called harmony search (HS), it is used to tune PI controller parameters ( ) automatically. The developed controller (HS-PI) with LFC loop is very important to minimize the system frequency and keep the system power is maintained at scheduled values under sudden loads changes. Integral absolute error (IAE) is used as an objective function to enhance the overall system performance in terms of settling time, maximum deviation, and peak time. The two-area power systems and developed controller are modelled using MATLAB software (Simulink/Code). As a result, the developed control algorithm (HS-PI) is more robustness and efficient as compared to PSO-PI control algorithm under same operation conditions.
Volume: 7
Issue: 6
Page: 3217-3225
Publish at: 2017-12-01

The Impact of Color Space and Intensity Normalization to Face Detection Performance

10.12928/telkomnika.v15i4.6718
I Nyoman; Udayana University Bukit Jimbaran Politeknik Negeri Bali, Indonesia Gede Arya Astawa , I Ketut; Udayana University, Indonesia Gede Darma Putra , I; Udayana University, Indonesia Made Sudarma , Rukmi; Udayana University, Indonesia Sari Hartati
In this study, human face detection have been widely conducted and it is still interesting to be research. In this research, strong impact of color space for face i.e., many and multi faces detection by using YIQ, YCbCr, HSV, HSL, CIELAB, and CIELUV are proposed. In this experiment, intensity normality method in one of the color space channel and tested the faces using Android based have been developed. The faces multi image datasets came from social media, mobile phone and digital camera. In this experiment, the color space YCbCr percentage value with the image initial value detection before processing are 67.15%, 75.00%, and 64.58% have been reached. Then, after the normalization process are 83.21%, 87.12%, and 80.21% have been increased. Furthermore, this study showed that color space of YCbCr have reached improvement percentage
Volume: 15
Issue: 4
Page: 1895-1900
Publish at: 2017-12-01

Wireless Fault Detection System for an Industrial Robot Based on Statistical Control Chart

10.11591/ijece.v7i6.pp3421-3435
Alaa Abdulhady Jaber , Robert Bicker
Industrial robots are now commonly used in production systems to improve productivity, quality and safety in manufacturing processes. Recent developments involve using robots cooperatively with production line operatives. Regardless of application, there are significant implications for operator safety in the event of a robot malfunction or failure, and the consequent downtime has a significant impact on productivity in manufacturing. Machine healthy monitoring is a type of maintenance inspection technique by which an operational asset is monitored and the data obtained is analysed to detect signs of degradation and thus reducing the maintenance costs. Developments in electronics and computing have opened new horizons in the area of condition monitoring. The aim of using wireless electronic systems is to allow data analysis to be carried out locally at field level and transmitting the results wirelessly to the base station, which as a result will help to overcome the need for wiring and provides an easy and cost-effective sensing technique to detect faults in machines. So, the main focuses of this research is to develop an online and wireless fault detection system for an industrial robot based on statistical control chart approach. An experimental investigation was accomplished using the PUMA 560 robot and vibration signal capturing was adopted, as it responds immediately to manifest itself if any change is appeared in the monitored machine, to extract features related to the robot health conditions. The results indicate the successful detection of faults at the early stages using the key extracted parameters.
Volume: 7
Issue: 6
Page: 3421-3435
Publish at: 2017-12-01
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