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Journal of Applied Information, Communication and Technology (JAICT)

jaict
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Published by Politeknik Negeri Semarang

ISSN : 25416340 EISSN : 25416359 DOI : https://doi.org/10.32497/jaict

Core Subject : Engineering,

Engineering

Focus of JAICT: Journal of Applied Information and Communication Technologies is published twice per year and is committed to publishing high-quality articles that advance the practical applications of communication and information technologies. JAICT scope covers all aspects of theory, application and design of communication and information technologies, including (but not limited): Communication and Information Theory. Mobile and Wireless Communication, Cognitive Radio Networks. Ad Hoc, Mesh, Wireless Sensor Network, Distributed System and cloud computing Computer networking and IoT Optimization Algorithms, Artificial intelligence, Machine Learning, and Adaptive System.

Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro

Articles 78 Documents

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Nutrient Film Technique (NFT) Hydroponic Monitoring System Helmy Helmy; Arif Nursyahid; Thomas Agung Setyawan; Abu Hasan
JAICT Vol 1, No 1 (2016)
Publisher : Politeknik Negeri Semarang

Plant cultivation using hydroponic is very popular today. Nutrient Film Technique (NFT) hydroponic system is commonly used by people. It can be applied indoor or outdoor. Plants in this systemneed nutrient solution to grow well. pH, TDS and temperature of the nutrient solution must be check to ensure plant gets sufficient nutrients. This research aims todevelop monitoring system of NFT hydroponic. Farmer will be able to monitor pH, TDS and temperature online. It will ease farmer to decide which plant is suitable to be cultivated and time to boost growth.Delay of the system will be measured to know system performance. Result shows that pH is directly proportional with TDS. Temperature value has no correlation with pH and TDS. System has highest delay during daylight and afternoon but it will decline in the night and morning. Average of delay in the morning is 11 s, 28.5 s in daylight, 32 s in the afternoon and 17.5 s in the night.

QoS Analysis of Wireless Sensor Networks for Temperature and Humidity Monitoring and Control of Soybean Seed Storage Based IOT Using NodeMCU Sindung HW Sasono
JAICT Vol 2, No 1 (2017)
Publisher : Politeknik Negeri Semarang

Based on data from Central Bureau of Statistics in 2016 - 2020 soybean production deficit, the main factor is the decline in the quality of soybean seeds temperature and humidity sensitive. And so we need a system of monitoring and control of temperature and humidity container store soya beans. Wireless sensor network wireless technology that consists of a collection of sensor nodes distributed on a given area can support the communication between the sensor nodes using the system and sensor NodeMCU DHT11. This research was to analyze the WSN QoS monitoring system and temperature and humidity control soybean seed store container-based IOT using NodeMCU clients and coordinators are connected to an access point for sending data to the server in realtime. Tests carried out by putting the sensor node at 3 points with a distance variation of the coordinator and a data packet transmission interval. The test results obtained using a star topology indoor NLOS conditions optimal distance sensor node 3 which is 4 meters and the delivery interval 40s with packet loss value of 0-20%, delay 1.154 - 5,92s, jitter 0.241 to 7.57 ms, and throughput 66.32 bits / s. WSN protocol IOT uses MQTT NodeMCU and goes well with a low throughput value is 529.81 bps to 544.85 bps can still generate a delay kualiatas 200.33 to 270.83 ms and packet loss from 0 to 1.284% which is good. 92s, jitter 0.241 to 7.57 ms, and the throughput of 66.32 bits / s. WSN protocol IOT uses MQTT NodeMCU and goes well with a low throughput value is 529.81 bps to 544.85 bps can still generate a delay kualiatas 200.33 to 270.83 ms and packet loss from 0 to 1.284% which is good. 92s, jitter 0.241 to 7.57 ms, and the throughput of 66.32 bits / s. WSN protocol IOT uses MQTT NodeMCU and goes well with a low throughput value is 529.81 bps to 544.85 bps can still generate a delay kualiatas 200.33 to 270.83 ms and packet loss from 0 to 1.284% which is good.

Strengthening campus finance by analyzing attribute attributes for student registration classifications M Adib Al Karomi; Much. Rifqi Maulana; Slamet Joko Prasetiono; Ivandari Ivandari; Arochman Arochman
JAICT Vol 4, No 2 (2019)
Publisher : Politeknik Negeri Semarang

Students are the most valuable assets in a private college. Assets like this that really need to be maintained and maintained, because most of the income from the private campus is derived from the tuition fees of students. The large number of students who resigned and did not conduct registration would have an impact on the financial institutions. STMIK Widya Pratama is the only computer science campus in Pekalongan City. Data from the last 5 years obtained from the new student admissions committee at STMIK Widya Pratama Pekalongan shows that out of 2670 prospective students who enroll, there are at least 514 prospective students who do not register. This means that around 20% of students do not register. Several analyzes related to the classification for student registration were conducted. In this case the best method that can be used is C45. In the process of calculating the C45 algorithm, information gain method is used to determine the importance of data attributes. The calculation results show that the attribute with the highest level of importance is the city_district attribute from the prospective student's residence, followed by the attributes of education, parental education, and tuition. These results can later be used and developed to create a system to support campus policy.

Height Measurement System Based on Edge Detection Technique and Analysis of Digital Image Processing Ida udlhiya
JAICT Vol 2, No 2 (2017)
Publisher : Politeknik Negeri Semarang

Height measurement is important in the field of health, athletics, and others. During this process the measurement height is done manually by using the tools in the form of tape measure or ruler. This takes quite a long time. With the weaknesses of such height measurements, then on this research designed a height measurement system based on Digital Image Processing Techniques. The parameters used for this research is the distance of the camera, the height of the camera, the camera angle, the color of the shirt, and the position of the object. Testing is done by performing processing and digital image analysis. By using these techniques, it only takes 35 seconds to process measurement and results. In addition to the test results can be stored in the system database, making it easier for data archiving. Of the overall testing with parameters of the camera distance, the height of the camera, the camera angle, the color of the shirt, and the position of the object, resulting in a measurement of the height of a more objective and accurate with the level of accuracy of 99.5%.

System Design Of Course Scheduling Of Telecommunication Engineering Majors At State Polytechnic Of Semarang Amin Syarifuddin
JAICT Vol 2, No 2 (2017)
Publisher : Politeknik Negeri Semarang

Telecommunication Engineering is one of Study Program (Prodi) at State Polytechnic of Semarang (Polines). The development of information technology (IT) can provide ease to meet various information needs. Course schedule used as a reference for teaching and learning activities to fit the target. In Prodi Telecommunication Engineering Polines to create a schedule still using Microsoft Excel applications as well as in publications on lecturers and students are still using physical mading. With that background then the authors make the information system scheduling courses. This information system is created using the PHP programming language utilizing the Laravel framework and MySQL database. After the system is completed the test is done by using the black box method to prove all the features work well in accordance with their respective functions. Design model using modeling Use Case Diagram and Entity Relationship Diagram (ERD) can be done to design Scheduling System Subject Telecommunication Engineering Program Polines. This application is made in the form of websites and integrated with the database, so it can be accessed by the user in realtime on the Intranet network. Schedule preparation courses can be done Kaprodi using web-based information system. The results of this information system can be used to create course schedules and can be accessed so that lecturers and students can view the course schedule

Array of 8 Circularly Polarized Microstrip Antenna for 802.11ac MIMO WLAN Sholihin lihin hin
JAICT Vol 1, No 2 (2016)
Publisher : Politeknik Negeri Semarang

An Array of 8 Circularly Polarizer Microstrip Antenna was proposed as MIMO antenna for IEEE 802.11ac MIMO WLAN system. The proposed antenna is applied for access point side. Antenna arrangement in two different polarization has investigated and the results show that setting the adjacent element with different polarization such as right hand and left hand circular polarization was used to suppress the mutual coupling between antenna. The highest mutual coupling is -26.8 dB. Each antenna element covers 480 MHz bandwidth. The calculation of estimated MIMO capacity that supported by the antenna shows that 1 Gbps capacity can be reach using the proposed antenna.

VSWR value measurement analysis using Direct Digital Synthesizer Lorenza Louis Natalia
JAICT Vol 3, No 1 (2018)
Publisher : Politeknik Negeri Semarang

SWR Analyzer is an electronic device radio is useful to know the value of VSWR and antenna impedance without the use of radio tranciever. In this final use Direct Digital Synthesizer (DDS) to generatewaveforms analog digitally. DDS signal generation programmable via Arduino nano. The frequency used is aantenna operating frequency dipole 7 MHz which are in the range 6.9 MHz - 7.4 MHz.calibration SWR Analyzer is done by providing a form of pure resistor load with the acquisition of a data error of 4% as compared with the theory. The test results niali VSWR atantenna dipole 7 MHzusing an SWR Analyzer then compared with measuring devices in general, ie VSWR SWR meter. Earned value matching 1: 1 obtained by SWR Analyzer at a frequency of 6.9 MHz, while using the SWR meter lowest VSWR values obtained at 7:04 MHz frequency with a value ofratio matching impedance1:35: 1. The accuracy of the measurement results using the SWR Analyzer when compared with SWR meter reaches a value 83%.

Comparison of Energy Consumption of Wireless Sensor Network at Various Topology Deployment: Array, Grid, and Random Ari Sriyanto Nugroho; Ipang Prasojo
JAICT Vol 1, No 1 (2016)
Publisher : Politeknik Negeri Semarang

This paper is review wireless sensor network and it’s energy consumption at different deployment methods. Wireless Sensor Networks (WSN) are emerging with many applications, because of the advances in large scale wireless communications. These networks are deployed to serve single objective application, with high optimization requirements such as power saving. The WSN design problem is of high complexity, and requires robust methodologies, including simulation support. We use NS2 as simulation program for this model. In this paper, the authors compare the energy consumption on three different deployment methods of WSN. These deployment methods refer to topology deployment. In this simulation, we deploy WSN on grid, array, and random topology. We use different numbers of WSN nodes for showing the scalability. We use AODV as routing protocol and CBR as the traffic. After that, we compare the energy consumption that consume by that networks. Based on simulation result, the array topology is the best topology for deployment. This topology is the lowest on energy consumption, 0.560%.

Performance of MiMo-OFDM Systems in Rayleigh Channel Eni Dwi Wardihani
JAICT Vol 4, No 1 (2019)
Publisher : Politeknik Negeri Semarang

Along with the development of wireless communication makes the increasing demand for obtaining quality services and better range, bandwidth-efficient and reliable system. OFDM is a multicarrier transmission technique to overcome multipath fading, which may result in intersymbol interference (ISI). On the other hand there is the antenna system with the use of multiple antennas at the transmitter and receiver that can also be overcome multipath fading,ie Multiple Input Multiple Output (MIMO) to increase channel capacity and diversity gain. MIMO techniques used in this Final adaldah Space Time Block Code. Simulation aims to simulate and analyze the MIMO OFDM technique using space-time block code against the influence of the number of subcarriers and influence user speed in AWGN channel and Rayleigh. The simulation results based on the number of subcarriers in AWGN channel, the best performance is obtained by subcarrier number 256. With BPSK and QPSK modulation obtained BER = 6 10-4 when SNR 4 dB. Simulation based on Rayleigh channel obtained when BER = 9.7 10-5 with BPSK modulation. Based on the comparison of the greater frequency doppler given doppler frequency, resulting in BER generated even greater, because the state of the canal will be getting worse.

Comparison Study of Performance Analysis of Information System Using The Methods of End-User Computing Satisfaction and It Balance Score Card Roy Sari Milda Siregar Siregar
JAICT Vol 4, No 2 (2019)
Publisher : Politeknik Negeri Semarang

Evaluation of information system performance is needed to get an overview of the ease of end-users in utilizing a new technology. This study aims to evaluate the performance of information systems in a state-owned company (PT PLN Madya Langsa) based on an end-user perspective that is separated into two categories: employees and managers. The level of employee satisfaction (primary user) is measured using EUCS (aspect of: content, accuracy, format, ease of use, timeliness, and satisfaction). The manager's satisfaction level (secondary user) is measured by using IT BSC (aspect of: company contribution, user, operational excellence, and future orientation). The evaluation on the primary user showed that it was low at 25.6%, moderate at 56.64% and high at 18%. The percentage of user satisfaction with the information systems is 72.9% of the results expected by users. Meanwhile, evaluation on the secondary user obtained the following results: low at 10.5%, moderate 84.2% and high at 5.3%. The percentage of user satisfaction with the information system was 92.8% of the results that is expected by users. This study also discusses why there are differences in the percentage of primary user satisfaction compare to the secondary user and provides suggestions how to improve the level of satisfaction of the end users in the future.

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Helmy, S.T., M.Eng

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jaict@polines.ac.id

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+62811278186

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jaict@polines.ac.id

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Program Studi Teknik Telekomunikasi Jurusan Teknik Elektro Politeknik Negeri Semarang Jl. Prof. H. Soedarto, S.H. Semarang

Location
Kota semarang,

Jawa tengah

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Helmy, S.T., M.Eng

Contact Email jaict@polines.ac.id

Phone +62811278186

Journal Mail Official jaict@polines.ac.id

Editorial Address Program Studi Teknik Telekomunikasi Jurusan Teknik Elektro Politeknik Negeri Semarang Jl. Prof. H. Soedarto, S.H. Semarang

Location Kota semarang, Jawa tengah INDONESIA

Abstract

Abstract

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Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Helmy, S.T., M.Eng

Contact Email
jaict@polines.ac.id

Phone
+62811278186

Journal Mail Official
jaict@polines.ac.id

Editorial Address
Program Studi Teknik Telekomunikasi Jurusan Teknik Elektro Politeknik Negeri Semarang Jl. Prof. H. Soedarto, S.H. Semarang

Location
Kota semarang,

Jawa tengah

INDONESIA