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JMECS (Journal of Measurements, Electronics, Communications, and Systems)
Published by Universitas Telkom
ISSN : 24777994     EISSN : 24777986     DOI : https://doi.org/10.25124/jmecs.v6i1
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology
Journal of Measurements, Electronics, Communications, and Systems (JMECS) is a scientific open access journal featuring original works on communication, electronics, instrumentation, measurement, robotics, and security networking. The journal is managed by the School of Electrical Engineering and published by Telkom University. The target audience of JMECS are scientists and engineers engaged in research and development in the above-mentioned fields. JMECS publishes full papers and letters bi-annually in June and December with a high standard double blind review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities. All published articles are checked using ithenticate plagiarism checker software. The scopes include: ELECTRONICS (ELEC) Theory and Design of Circuits Biomedics COMMUNICATION SYSTEMS (COMS) Information Theory Source Coding Channel Coding Optical Communications Wireless Communications SIGNAL PROCESSING (SIGN) Signal and System Image Processing AUTOMATION AND ROBOTICS (AUTO) Industrial Automation Control Theory Control Systems INSTRUMENT AND MEASUREMENT (INST) Power systems Renewable energy Smart Building Sensors Acoustics MATERIAL AND DEVICES (MATE) Material for Electronics Nanomaterials Photonics NETWORKING AND SECURITY (NETW) Network Theory Communication Protocols Switching Internet of Things, ANTENNA AND MICROWAVE (ANTE) Antennas Propagations Nanosatellite Radar Remote Sensing Navigation ARTIFICIAL INTELLIGENCES (ARTI) Machine Learning Intelligent Transportation Systems
Arjuna Subject : Teknik (semua kategori) - Teknik Kontrol dan Sistem
Articles 5 Documents
 1 
Search results for , issue "Vol 5 No 1 (2019): JMECS" : 5 Documents clear
RFID Reader Microstrip 915 MHz Design For Ticketing Highway Toll Without Tapping Muhamad Abdul Rahman Suyudi; Bambang Setia Nugroho; Edwar Edwar
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol 5 No 1 (2019): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v5i1.1954

Abstract

The use of radio frequency identification (RFID) for gateless highway toll ticketing system is expected to have an excellent accuracy in detecting every passing car. Practically, a RFID reader should be able to precisely read tags installed in cars queuing in a certain lane, while avoiding any reading of car tags in other queuing lanes or outside the reader’s reading range. Therefore, a microstrip antenna for the reader is required to have a proper configuration. In this work, an RFID reader antenna microstrip, has been proposed, operating at 915 MHz and deployable at highway gates. The proposed beam width is intentionally configured to cover the width of one gate lanes, avoiding excessive coverages on other lanes. Besides, the antenna is intended to have a circular polarization, hence avoiding any reading problem despite potential tilting of RFID tag in a passing car. The resulting gain is 1.77 dB, which is expected to affect the amount of transmitting power required by an RFID transmitter. Looking at the result of this study, the proposed antenna is stated to be applicable for RFID readers at gateless highway system.
Energy Efficient Device-to-Device Weighted Clustering Method in Public Safety Networks F Rachmawati; I Wahidah; A T Hanuranto; L V Yovita; B Narottama
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol 5 No 1 (2019): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v5i1.2036

Abstract

In this work, device-to-device weighted clustering communication is observed in the system of public safety network. Previous algorithm is aimed to avoid unnecessary cluster head re-selection for a steady cluster in the mobile ad-hoc network with a weighted clustering method. Public Safety Network for disaster area, however, differs from the traditional network due to several restrictions, such as shorter end-to-end delay requirement and unavailability of backbone resources. We propose the Improved Weighted Application Clustering Algorithm (IWACA) with additional weight factor for selection of cluster heads in the public safety network. The cluster heads selection algorithm, which is based on the energy-aware of User Equipment (UE) and Quality of Services (QoS), is also taken into consideration and evaluated in the simulation. The results show that energy saving as much as 5.96% can be attained with our proposed algorithm (IWACA) compared to Brust’s. In addition, the delay is decreased 10.96% lower than previous method. With this improvement, the IWACA method becomes more feasible for public safety networks.
Dual Steganography in Digital Images with Spread Spectrum Insertion Method Sofia Saidah
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol 5 No 1 (2019): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v5i1.2073

Abstract

This study aims to prove whether embedding a stego-image within another cover can be performed to deceive hackers or unauthorized people. In steganography, both concealing the fact that secret message is sent and its content are concerned. Dual steganography means to make unauthorized people think that the first cover is the real message. The first step is to embed the secret text message into the first cover image using Spread Spectrum (SS) method. After that, the resulting stego-image was transformed using the Discrete Wavelet Transform (DWT) method followed by the insertion process using the Singular Value Decomposition (SVD) method. The result of this study shows that the system can perform dual steganography with good imperceptibility. Parameters measured in the average of 35 dB of PSNR and 30 dB of SNR in the first embedding process; meanwhile, for the second process the system performed in the average of 41 dB of PSNR and 38 dB of SNR. Also, in the extraction process, BER measured close to 0. Although some basic attack scenarios such as Gaussian noise, Salt and Pepper noise, Low Pass Filter (LPF) and High Pass Filter (HPF) were performed in this research, more advanced attack scenarios can be discussed in future research; for instance, compression and geometric transform.
An Investigation of Defected Ground Structure Effect on Bandwidth Enhancement of U-Shape Microstrip Antenna for Small Ultra Wide-Band Radar Device Dina Puspa Wulandari; Heroe Wijayanto; Edwar Edwar
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol 5 No 1 (2019): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v5i1.2018

Abstract

Ultra-wideband radar has been widely used for various purposes, including detection of human vital signs, small displacement detection, and ground penetrating radar. In order to work properly, it requires an antenna with a wide bandwidth. This study reports an investigation of a bandwidth enhancement method by combining the U-shaped microstrip patch antenna with the Defect Ground Structure (DGS). In this research, the antennas are operated at 5.8 GHz. The results show the combination of U-shaped patch and DGS produce twice bandwidth performance compared to the one without DGS. In our study the diamond shape DGS gives the best performance among various DGS structures.
Heart Rate Measurement System Based on Pulse Sensors with Pathophysiological Appearance Yana Yohana; Yudith Yunia Kusmala; M. Reza Hidayat; Susanto Sambasri
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol 5 No 1 (2019): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v5i1.2049

Abstract

Measuring the number of pulses has been used in the medical world to determine stress, relaxation, physical fitness levels, and other medical conditions. Due to the importance of checking heart rate, it is necessary to have a portable and practical heart rate measuring device so that patients with heart disease will be easier to be monitored. The device is equipped with pulse sensor to measure the heart rate in real time and provide a beats per minute (BPM). The results of normal heart rate conditions, bradycardia, and tachycardia can be monitored using mobile device application based on the measured BPM. This can be seen as output voltage generated by the pulse sensor. This pulse sensor has an average percentage error of 1.77% and deviation of 2 that is relatively small compared to standardized devices. The device is connected to the mobile application by Bluetooth which the coverage is 11 up to 45 meters depends on the obstacles.

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