Journal of Informatics And Telecommunication Engineering
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Propagation Model for Mobile Communication 2100 Mhz in Tampan Pekanbaru City
Get PDFDalam merancang sebuah jaringan komunikasi hal yang harus diperhatikan adalah model propagasi yang digunakan harus sesuai dengan daerah yang akan dilakukan perancangan jaringan komunikasi. Sinyal mempunyai mekanisme tersendiri dari pemancar dan diterima oleh user, maka dibutuhkan model propagasi yang sesuai dengan karakteristik daerah. Seperti daerah Kota Pekanbaru tepatnya di Kecamatan Tampan. Penelitian ini bertujuan untuk menentukan model propagasi komunikasi bergerak 2100 MHz yang sesuai dengan karakteristik Kecamatan Tampan. Metode yang digunakan adalah drive test dibantu dengan aplikasi G-Net Track Pro. Berdasarkan perhitungan dan simulasi yang dilakukan di dapatkan persamaan model loss propagasi yaitu linear : Y = 1.1*x + 67, persamaan kuadratik : Y = -0.28*x2 + 1.9*x + 67, persamaan kubik : Y = -0.8*x3 + 3.3*x2 – 2*x+67
Optimization of Faster R-CNN to Detect SNI Masks at Mandatory Mask Doors
Get PDFIn preparing for the COVID-19 endemic period, every government and private agency will be required to comply with new rules by the government, where everyone is required to wear a mask and perform physical distancing when leaving the house for activities. This is one of the new habits that will be familiarized to the public by the government in 2022 and the following year. Due to the easy transmission of the Covid-19 virus, the selection of SNI masks is highly recommended. The purpose of this study was to classify the types of SNI and non-SNI masks so that the presence of this SNI mask cluster monitoring system could increase security in locations that require the mandatory use of masks such as in schools and the masks used can function effectively to prevent the spread and transmission of Covid -19.. From the dataset, 100 pictures were taken randomly on SNI and non-SNI mask users. Where the types of masks that are SNI have been studied on Duckbil masks, KN-45, Surgical Mask 2 ply, and Surgical 3 ply are included in SNI masks and cloth masks are not included in SNI masks at a distance of 0.5 meters, 1 meter, 1.5 meters and 2 meters from the mobile device. It can be seen on the SNI mask at a distance of 0.5 meters achieving 100% accuracy, a distance of 1 meter achieving 100% accuracy, at a distance of 1.5 meters achieving an accuracy of 95% and at a distance of 2 meters achieving 90% accuracy. Whereas non-SNI masks at a distance of 0.5 meters achieve 100% accuracy, a distance of 1 meter achieves 100% accuracy, at a distance of 1.5 meters achieves an accuracy of 95% and at a distance of 2 meters achieves an accuracy of 90%
A Comparative Study of Student Satisfaction Levels on Online Learning Using K-NN and Naïve Bayes
Get PDFThe outbreak of the Covid-19 pandemic in Indonesia led to restrictions on human social activities to minimize transmission. Teaching-learning is also affected when students must stay home and follow distance learning based on Government Regulation Number 21 of 2020, the Large-Scale Social Restrictions (PSBB) policy, issued on March 31, 2020. This has led to the emergence of learning support applications such as Zoom, Google Classroom, Google Meet, E-Learning, and many more. However, this new learning culture requires adaptation for effective implementation. During the adaptation process, researchers want to measure the level of student satisfaction and find out the best algorithm for classifying the level of student satisfaction. This measurement uses two data mining algorithms, K-Nearest Neighbour (K-NN) and Naïve Bayes, and the Islamic State University of Sultan Syarif Kasim Riau students as the research object. Different algorithms have varying strengths and weaknesses in handling specific data types and classification tasks. By comparing both algorithms, we can assess their generalization capabilities. A model that performs well on training data but fails to generalize to unseen data may not be as effective as a more robust algorithm that exhibits better generalization performance. K-NN classification with a value of k = 3 gets good results. Based on the study results, the conclusion is that K-NN is more optimal in classifying student satisfaction levels than Naïve Bayes with an accuracy ratio of 85% : 80%, precision of 85% : 84%, and recall of 99% : 93%
Design and Development an e-Lapor Application to Support Public Complaint Services in Tunjungtirto Village
Get PDFThe process of public complaints is carried out in a structured manner starting from the central government level to the village government level. In practice, the problem in the public complaint process is when the community as the service user is dissatisfied with the services provided because the complaints submitted are not properly managed or responded to by the complaint officer. The business process for public complaint services in Tunjungtirto village is still carried out conventionally, where people who wish to submit complaints must go to the Village Consultative Body (BPD) office and fill in complaints or aspirations in the community aspirations data book. This is prone to conditions where public complaints are not followed up because they are not properly recorded. This study aims to build a website-based information system with features for complaints, aspirations, and requests for information. The system development method used in this study is the waterfall method where the method is sequential-based software development. The results of application development will be tested at the Tunjungtirto Village BPD office. Based on black box testing, the test results are obtained with a maximum score of 2 for each feature. This shows that in terms of functionality, the application is running according to its purpose. The existence of main features such as displaying complaint data and automatic notifications on the application can assist village officials in managing community complaints and responding to and following up on complaints to the service or escalating complaints to the local government so that community complaints can be managed properly
Design and Construction of 2.4 Ghz Omnidirectional Antenna as Wireless LAN Transmitter (Case Study at Bukit Indah Campus, Malikussaleh University)
Get PDFCommunication with a wireless system is one of the mainstay communications so that communication integration is achieved. For this reason, Malikussaleh University provides a wifi network on each campus, one of which is the Bukit Indah campus. So that the achievement of wifi access points on mobile devices needs to be improved so that it is achieved properly. Therefore it is necessary to optimize the placement of access points on the Malikussaleh University wifi network. Modeling an omnidirectional antenna that has a range of 360 ° is one solution. The method applied is to design and build an omnidirectional antenna on the Bukit Indah Campus of Malikussaleh University. Based on simulations on Mobile Radio, the largest network pathloss is 116.2 dB and the smallest is 102.0 dB. The results of omidirectional antenna testing conducted 5 times obtained the largest download speed worth 3.18 Mbps with 314ms ping at a distance of 30 meters and the smallest download speed worth 0.55Mbps with 195ms ping at a distance of 150 meters. The farther the distance of the antenna the lower the ping and packet loss, from the test results obtained an average ping of 267.8ms and the largest packet loss percentage of 0.4%. The ideal distance for this antenna is 30 to 110 meters and can even get a longer distance provided there are no obstacles. With this distance it is ideal for an assembled antenna with makeshift materials that we often encounter in everyday life
Analysis and Prediction of Relative Humidity Level using Generalized Linear Model
Get PDFThe significance of humidity as a critical climate parameter impacts various sectors, including agriculture, health, and energy, necessitating a comprehensive understanding of its influencing factors. This study investigates the influence of climatic variables such as temperature, rainfall, sunshine duration, wind speed, and wind direction on the humidity levels in DKI Jakarta from 2019 to 2022. The objective is to develop a time-independent predictive model for humidity based on historical climate data. The methodology includes data pre-processing to impute missing values and replace outliers, followed by exploratory data analysis to ascertain variable distribution and inter-relationships. A regression model was initially employed for analysis, with subsequent application of regularization via a generalized linear model to enhance prediction accuracy. Results indicate that temperature, rainfall, sunshine duration, and wind direction significantly impact humidity levels in the investigated period. High inter-variable correlation posed challenges of multicollinearity and overfitting in the initial model. However, the application of regularization, trained with 75% of the historical dataset, mitigated these issues and improved model accuracy. This is evident in the improved Mean Squared Error (MSE) performance metrics of the Elastic-Net Regression Model (12.2), compared to the initial Multiple Regression Model (12.5). These findings hold potential implications for weather forecasting and climate change studie
Analysis of Educator Readiness in the Online Teaching Learning Process Using Naïve Bayes
Get PDFThis study discusses the readiness of educators in the online teaching and learning process. Samples of data were taken randomly as many as 100 (one hundred) people who were carried out using a questionnaire for educators at the junior high school level in the city of Medan. The variables used in the research are human resources, facilities and infrastructure, skills in applying technology, time management in online learning, the assessment process. Data processing and data analysis using nave Bayes algorithm. This algorithm is very well used for the process of classifying large amounts of data. The reason for using the nave Bayes algorithm in processing and analyzing data is because the way this algorithm works uses statistical and probability methods in predicting future results. The results of calculations using the nave Bayes algorithm based on the specified training data show that educators at the junior high school level are ready for the online learning process
Utilization of Color Space Value Filter for Laser Pointer Spot Detection with a Single Board Computer
Get PDFA color space is an abstract mathematical model that describes how a color can be represented as a row of numbers. One abstract mathematical model of the color space that represents the brightness of a color is the value color space or known as the value filter. For this reason, a gray scale is used with a value range of 0 to 255. This is tested in detecting a red laser pointer light spot that is directed into a field. The results obtained show that more inconsistent detection results are displayed than consistent detection results (can be seen in table 1 and table 2). This can happen because the area of the image captured by the camcorder has several pixels with a maximum gray level value or a gray level value that exceeds the specified limit value (maxBri variable)
DESIGN A FOLK STORY-BASED THREE-DIMENSIONAL ANIMATION ABOUT THE ORIGINS OF SAGO IN SENTANI
Get PDFPerkembangan Teknologi informasi pada saat ini begitu pesat dan digunakan dalam berbagai sektor kehidupan misalnya multimedia yang terdiri dari teks, bunyi, gambar, musik, animasi dan video dapat digunakan dalam media pembelajaran. Media Pembelajaran berupa cerita rakyat yang berasal dari Papua masih jarang ditemukan sedangkan kebutuhan akan media pembelajaran tentang cerita rakyat Papua sangat dibutuhkan guna menjaga keberagaman dan kekayaan budaya serta adat istiadat di Papua. Salah satu kekayaan alam di Papua adalah pohon sagu yang tersebar luas diseluruh daerah pesisir Papua. Tanaman Sagu di daerah Sentani memiliki banyak jenis dan kualitas terbaik di dunia dan memiliki cerita yang diturunkn secara turun temurun kepada orang Sentani. Dari Latar belakang tersebut peneliti tertarik untuk merancang dan membangun animasi tiga (3) dimensi berbasis cerita rakyat tentang asal usul Sagu di Sentani. Metode pengembangan sistem menggunakan model pengembangan multimedia versi Luter Sutopo yang terdiri dari enam (6) tahap yaitu concept, design, material collecting, Assembly, testing dan Distribution. Aplokasi perangkat lunak yang digunakan adala Blender 2.9.1, Make Human 1.2.0, Reallusion, Hanbrake 1.3.3, Adobe Audition cc 2020, Wonder Sare Filmora X. Hasil pengujian alpha testing menunjukkan bahwa seluruh scenario berjalan dengan benar dan pengujian beta testing dengan kuesioner menunjukkan bahwa 99% menjawab tampilan menarik, 97% menjawab mudah dipahami dan 98 % menjawab dapat menjadi bahan promosi sehingga layak dipublikasikan
BANDWIDTH ENHANCEMENT OF MICROSTRIP ANTENNA WITH SLIT AND PARASITIC ELEMENT FOR 5G COMMUNICATION
Get PDFAbstrakSistem komunikasi generasi kelima (5G) telah diperkenalkan pada tahun 2018 dan memiliki kelebihan antara lain kecepatan transfer data yang tinggi serta bandwidth yang sangat lebar. Berdasarkan regulasi yang ditetapkan oleh frekuensi kerja yang digunakan untuk sistem komunikasi generasi kelima (5G) terbagi menjadi beberapa band yaitu untuk high band 28 GHz, middle band 15 GHz dan low band 3,5 GHz. Penelitian ini akan melakukan optimasi bandwidth . Penelitian ini mengusulkan optimasi bandwidth desain antena mikrostrip persegi panjang dengan metode slit, dan elemen parasitik pada frekuensi kerja 15 GHz untuk komunikasi 5G. Metode celah digunakan untuk meningkatkan nilaireturn loss sedangkan element parasitik digunakan untuk meningkatkan bandwidth dari antena yang diusulkan. Tujuan dari optimasi yang dilakukan untuk mendapatkan desain antena yang memiliki bandwidth yang lebar dan bekerja pada frekuensi 15 GHz dikarenakan pada penelitian sebelumnya optimasi bandwidth yang dilakukan hanya kurang dari 20%. Dari proses simulasi didapatkan peningkatan bandwidth sebesar 169,075% dan Return Loss meningkat sebesar 48,65%. Penelitian ini dapat direkomendasikan sebagai disain antena penerima pada sistem komunikasi generasi kelima (5G) dimana penambahan celah dan elemen parasitik dapat mengoptimasi bandwidth .Kata Kunci: antena, mikrostrip, slit, peningkatan bandwidth, elemen parasitikÂ