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Herry Setiawan
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International Journal of Wireless And Multimedia Communications
Published by Politeknik Negeri Padang
ISSN : -     EISSN : 20472172     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering
Focus and Scope Jurnal Focus jowim journal focuses on wireless communication technology and its development The journal scopes include (but not limited to) the followings: Telecommunication Theory Internet Of Things Wireless Sensor Network Signal And Image Processing Wireless Communication Optical Fiber Communication Telecommunication And Computer Networks Antennas And Transmission Systems Artificial Intelligence Machine Learning
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 40 Documents
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Multi-band MIMO Antenna with Square-Ring Slots for 5G Services Syaza Ibra Harlin; Nursal, Firdaus; Yolanda, Amelia
International Journal of Wireless And Multimedia Communications Vol. 2 No. 2 (2025): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v2i2.143

Abstract

Mobile communications technology is evolving rapidly with the introduction of 5G networks, which offer high speeds, low latency, and greater network capacity. To support these services, antennas that can operate optimally in a wide frequency range are required. The objective of this research is to design and analyze a multi-band square-ring slot MIMO antenna operating at frequencies of 2.6 GHz, 3.6 GHz, and 5.25 GHz. The antenna design is performed using CST Studio Suite 2019 software, and the simulation results are compared with the measurement results after fabrication. The antenna structure utilizes a microstrip design with an FR-4 substrate, optimizing parameters such as slot dimensions, feed line positioning, and element spacing to achieve the desired performance. The results show that the designed antenna has a return loss of < -10 dB, VSWR values in the acceptable range (1 ≤ VSWR ≤ 2), mutual coupling isolation below -20 dB, and ECC < 0.05, indicating good MIMO performance. In addition, the antenna exhibits an omnidirectional radiation pattern, a gain of more than 4 dBi with a maximum of 5.25 dBi at 2.6 GHz, and a wide bandwidth suitable for 5G applications. Although there are differences between simulated and measured results due to environmental factors and manufacturing tolerances, the antenna performance remains within acceptable limits. This research proves that the multi-band MIMO design with a square-ring slot can be an effective and practical solution to enhance 5G service quality, offering advantages for future wireless communication systems.
Comparative Analysis of Quality of Service (QOS) on 4G LTE and 5G Networks in Bekescsaba Hungary Adlil Karim, Dery; Yusnita, Sri; Chandra, Dikky
International Journal of Wireless And Multimedia Communications Vol. 2 No. 2 (2025): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v2i2.144

Abstract

This research discusses the comparison of Quality of Service (QoS) performance on 4G LTE and 5G networks in the Bekescsaba region, Hungary. The analysis was conducted based on five main QoS parameters, namely download speed, upload speed, jitter, packet loss, and latency, with the RSRP (Reference Signal Received Power) measurement category. The results showed that 5G networks consistently outperformed 4G LTE in almost all categories. For example, in the Very Good category, 5G networks recorded download speeds of up to 196 Mbps, upload speeds of 91.5 Mbps, and latency of 25 ms, significantly better than 4G LTE. In the Good and Fair categories, the 5G network continued to show significant advantages in data speed and latency, although the jitter values were relatively comparable to 4G LTE. In addition, packet loss on both networks was recorded at 0%, indicating a high level of reliability. This study concludes that 5G networks provide a better experience in supporting modern connectivity needs than 4G LTE, even under less than optimal signal conditions. The findings are expected to serve as a reference for future telecommunications infrastructure development.
Analysis of Signal Attenuation in the Indosat Fiber to the Home (FTTH) Network at Three Fat Points and the Role of Closures in Optimizing Optical Signals in Cluster RW07, Dusun I, Madegondo, Sukoharjo Regency, Central Java Rizka, Mitahul; Adila Asril, Aprinal; Maria, Popy
International Journal of Wireless And Multimedia Communications Vol. 2 No. 2 (2025): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v2i2.145

Abstract

The implementation of Fiber to the Home (FTTH) networks is an effective solution for providing high-quality telecommunication services with stable data speeds. This study was conducted on the FTTH network in Cluster RW 07, Dusun 1, Madegondo, Sukoharjo Regency, Central Java, to evaluate its feasibility based on PT. iForte's standards. These standards specify a receiving power range of -10 dBm to -21 dBm and a total attenuation range of 15 dB to 26 dB. The research process involved observation, optical power data collection, data processing, and analysis using the Power Link Budget parameter. The measurement results showed an improvement in network quality after optimization. The uplink and downlink attenuation at FAT 1, 6, and 11 experienced significant reductions, with the final attenuation values falling within the specified standard limits. For instance, at FAT 11, the downlink attenuation decreased by 1.10 dBm, representing one of the most significant improvements. These findings demonstrate that the FTTH network in the study area meets the feasibility criteria and delivers performance suitable for supporting user needs.
Design and Development of FTTH Network Infrastructure Using GPON Technology in Sukoharjo Regency Alfarezi, Muhammad; Maria, Popy; Septima, Uzma
International Journal of Wireless And Multimedia Communications Vol. 2 No. 2 (2025): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v2i2.146

Abstract

Abstract— The increasing demand for high-speed, reliable internet access in the digital era has led to the decline of conventional copper-based networks and the rise of fiber-optic-based solutions. This study focuses on the design and development of a Fiber To The Home (FTTH) network using Gigabit Passive Optical Network (GPON) technology in Banaran Subdistrict, Sukoharjo Regency, an area with growing economic activity, particularly in the Micro, Small, and Medium Enterprises (MSME) sector. The implementation of GPON is seen as a critical infrastructure enhancement that supports regional development, education, and digital connectivity. The research methodology began with site surveys using Google Earth Pro and QGIS to collect spatial data such as household coordinates and pole locations. This data was then processed using Setics Sttar Planner version 2.3.12, enabling automatic calculation of optimal cable routes, equipment locations, and required component specifications. The resulting FTTH design covers four neighborhood units (RW 1, RW 2, RW 4, and RW 5), serving a total of 630 homepasses. Key components of the network include 1 Optical Line Terminal (OLT), 2 Fiber Distribution Terminals (FDTs), 46 Fiber Access Terminals (FATs), and 125 poles. The power link budget calculation, essential to determining signal feasibility, produced theoretical receive power values between -15.089 dBm and -14.144 dBm. Field implementation and post-deployment measurements were conducted in RW 1 and RW 2 to validate the theoretical model. Adjustments were made due to site constraints, including reductions in splitter and FAT counts, as well as cable length modifications. Measured receive power values ranged from -16.71 dBm to -16.22 dBm, which still fall within acceptable standards defined by PT. iForte Solusi Infotek (between -10 dBm and -21 dBm). The differences between calculated and actual measurements were attributed to splicing quality, variations in cable deployment, and environmental factors. Overall, the study successfully demonstrates the feasibility and efficiency of deploying GPON-based FTTH infrastructure in semi-urban regions like Sukoharjo. The integration of digital tools for planning and field validation ensures optimal network performance, supporting the goal of bridging the digital divide and enhancing socio-economic development in the area.
Implementation Of Legged Robot Control With Pixy Camera Module Through Image Processing Technique fhadil, alfhadila
International Journal of Wireless And Multimedia Communications Vol. 3 No. 1 (2026): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v3i1.76

Abstract

This tool is the development and implementation of a robot control system using the Pixy camera module through image processing techniques to support automatic navigation.to support automatic navigation. This system is designed to improve robot's navigation capabilities in a dynamic environment by utilizing image processing as the main method in detecting and recognizing objects and obstacles around it.and obstacles around it. Pixy camera module is used as the main visual sensor integrated with the robot control system. Image processing techniques are applied to identify the optimal object and search for the object continuously, continuously. The test results show that the robot is capable of navigate independently with a high degree of accuracy in various environmental scenarios, environment. This implementation shows significant potential in development of autonomous robots that are more intelligent and adaptive to changes in the surrounding environment.surrounding environment.
Analysis of The Implementation of Carrier Aggregation Combinations That Occupy Non-Continuing Frequency Bands on The Existing LTE Network Igna Fillah, Khalidya; Yusnita, Sri; Zurnawita, Zurnawita; Khaidir, Yulindon; Andriani, Widya; Aisyah, Lin Fitri Alif Aisyah
International Journal of Wireless And Multimedia Communications Vol. 3 No. 1 (2026): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/abzn3175

Abstract

This study analyzes the effect of implementing Carrier Aggregation (CA) on non-adjacent frequency bands on LTE network performance in the Alai Parak Kopi area, Padang City, by measuring SINR parameters, uplink throughput, and downlink using the drive test method and TEMS application. The results show that CA affects the SINR value, with the highest value at a frequency of 1800 MHz (19.2 dB), followed by a combination of 1800 + 2300 MHz (18.5 dB), and 1800 + 2100 MHz (13.6 dB). CA also affects throughput, with the highest uplink at a combination of 1800 + 2300 MHz, while the highest downlink at 1800 MHz.
Design and Implementation of a Shined Length Periodic Microstrip Antena for 2.4 GHz and 5.8 GHz Double Wi-Fi Rahmadini, Putri; Adila Asril, Aprinal; Adila Asril, Ramiati; Khairunnisa Putri, Ashilah
International Journal of Wireless And Multimedia Communications Vol. 3 No. 1 (2026): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v3i1.140

Abstract

This research aims to design and implement a twin slit rectangular microstrip antenna for 2.4 GHz and 5.8 GHz dual-band Wi-Fi using CST Studio Suite 2019 software and in antenna measurements using a Vector Network Analyzer. Some of the antenna parameters produced are return loss, bandwidth, VSWR, radiation pattern, and gain. This antenna has an antenna size of 45 x 53 mm. The antenna is designed based on the characteristics of several antenna parameters, namely having a return loss ≤-10 dB gain value ≥1 dB, and VSWR ≤2. The type of substrate used is FR-4 (lossy) with a dielectric constant specification of 4.3, a characteristic impedance of 50 ohms, and a thickness of 1.6 mm. The ground plane material used is copper with a thickness of 0.035 mm. The microstrip antenna parameter optimization results are in the form of a return loss of -13.64 dB with a frequency of 2.4 GHz and -30.40 dB with a frequency of 5.8 GHz, VSWR values of 4.38 with a frequency of 2.4 GHz and 5.45 with a frequency of 5.8 GHz and have unidirectional pola radiation. In comparison, the return loss value of the fabricated antenna is obtained at -4.52 dB at a frequency of 2.5 GHz and -6.32 dB at a frequency of 5.8 GHz. VSWR values of 4.38 at a frequency of 2.4 GHz and 5.45 at a frequency of 5.8 GHz.
International Design and Development of a 1x4 Microstrip Monopole Antenna Array at 5 GHz U-NII-2A Bands (5150 - 5350 MHz) For Wireless Fidelity Devices Nofianti, Sandya Firstha; Yulindon, Yulindon; Ridho, Sahid; Rezky Cahaya Nabila
International Journal of Wireless And Multimedia Communications Vol. 3 No. 1 (2026): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/q0emqj49

Abstract

High-fidelity antennas are necessary due to the quick advancement of wireless communication technology, particularly for Wireless Fidelity (Wi-Fi) networks. Low antenna gain and a short signal range are two issues that frequently arise in Wi-Fi networks and can degrade the quality of data transmission. Consequently, an antenna design that can increase the overall system fidelity is required, particularly in the 5 GHz frequency band that is frequently utilized by Wi-Fi modem devices. This final project involves designing and developing a 1x4 microstrip monopole antenna array for Wireless Fidelity (Wi-Fi) devices that operate at the 5 GHz U-NII-1 and U-NII-2A bands (5150–5350 MHz). In order to facilitate Wi-Fi data transmission, this design aims to create an antenna with a higher gain, denser bandwidth, and appropriate radiation coverage. CST Studio Suite 2019 software was used to carry out the design on an FR4 substrate that was 1.6 mm thick and had a dielectric constant of 4.3. A Vector Network Analyzer (VNA) was then used to simulate, optimize, fabricate, and measure the design. With a simulated return loss of -51 dB, a VSWR of 1, and a bandwidth of 1 GHz with a bidirectional radiation pattern, the simulation and measurement results of the antenna demonstrate good performance. According to the measurement results, the bandwidth is 1.1 GHz, the VSWR is 1.2, and the return loss is -20 dB. The simulation and fabrication results demonstrate good suitability and conform to the requirements for creating Wi-Fi microstrip antennas.  
Non Linear Modeling of the Relationship Between Raw Water Turbidity, Accelerator Unit Turbidity, and Filtration Turbidity Using a Quadratic Interaction Model in a Water Treatment Plant Nelvidawati; Firdaus, firdaus; Kurnia Festa, M Andre
International Journal of Wireless And Multimedia Communications Vol. 3 No. 1 (2026): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v3i1.237

Abstract

This study aims to analyze the non-linear relationship between raw water turbidity, turbidity after the accelerator unit, and turbidity after the filtration unit at the Gunung Pangilun Water Treatment Plant (WTP) in Padang City using the Quadratic Interaction Model (QIM) approach. Turbidity data were collected from 1–5 June 2025 at one-hour intervals, resulting in 50 data points for each sampling location. The data processing stages included missing value inspection, outlier detection using the Interquartile Range (IQR) method, data consistency checking, relationship visualization among variables, and QIM-based modeling using Python. The results show that the QIM was unable to adequately represent the relationships among the variables, as indicated by an R-squared value of 0.145 and an adjusted R-squared of 0.048. All model parameters exhibited p-values greater than 0.05, indicating no statistically significant influence on turbidity after filtration. Model evaluation yielded an RMSE of 0.496 NTU and a MAPE of 19.34%, suggesting a moderate level of prediction accuracy. Additionally, the analysis identified 14% outliers and 9 inconsistent data points for each sampling location.
Design and Implementation of a Detection System for pH Levels, Moisture Content, and Sweetness in Honey Suhairi, M; Suhaila, Suhaila; Tuz Zahra, Nurraudya; Widyagustin, Hazimah
International Journal of Wireless And Multimedia Communications Vol. 3 No. 1 (2026): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v3i1.280

Abstract

This research aims to design and build a honey detection device. The device is designed to detect three important parameters in honey such as pH, water content, and color. A pH sensor is used to measure the acidity level of honey, which is an important indicator in determining the freshness and quality of honey. A Soil Moisture sensor is adapted to measure the water content in honey, as the appropriate moisture level significantly affects the stability and quality of honey. Meanwhile, an LDR sensor is used to detect the color of honey, which often serves as a visual indicator of the quality and type of honey. Data collected from these three sensors is processed by an ESP32 and displayed in Liquid Crystal Display (LCD) with easily understandable format, enabling users to assess honey quality quickly and accurately. Test results show that this device can provide consistent and reliable data, making it a potential solution for honey quality evaluation in the field. This research also utilizes push buttons for displaying data and resetting or reconfiguring the system. Based on the testing conducted, Uray Honey has the highest water content (11.90%) and the lowest acidity level (4.67). Real Honey with water content (8.19%) and pH (3.43), and TJ Honey with water content (8.68%) and pH (3.41) have similar profiles in terms of water content and pH; however, Real Honey is darker in color (11.05) compared to Uray Honey (9.97). Super Honey has consistent color and water content (8.11%) but has a lower color value (9.59) compared to other honeys and has a pH of (3.41).

Page 4 of 4 | Total Record : 40

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