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Performance Analysis of Multiple Input Multiple Output (MIMO) Multi-Carrier Code-Division Multiple Access (MC-CDMA) Combined with Quasi-Orthogonal Space Time Block Coding (QO-STBC) in Rayleigh Fading Channel Kusumawardhani, Eka; Astuti, Rina Pudji; Adriansyah, Nachwan Mufti; Imansyah, Fitri; Putra, Leonardus Sandy Ade
POSITRON Vol 12, No 2 (2022): Vol. 12 No. 2 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (388.996 KB) | DOI: 10.26418/positron.v12i2.46613

Abstract

The need for a communication system with a higher data rate and mobility grows along with information and communication technology development. Combining MC-CDMA with the MIMO system and supporting the system with a good transmit diversity technique is a promising idea to provide the needed communication system, especially in high mobility conditions. MC-CDMA can support ubiquitous communications without affecting the achievable BER and is more capable of high-speed mobility. It integrates the benefit of both OFDM and CDMA. On the other hand, QO-STBC increases the bit rate without using additional bandwidth to transmit diversity in the MIMO system. So, this study proposed a system combining the MIMO MC-CDMA system with QO-STBC. The proposed system is investigated under high mobility conditions to see the system's performance. The simulation results show that our system performs better than the MC-CDMA STBC system and the QOSTBC system but not better than the MC-CDMA multilevel coding scheme. To reach the value of BER 10−3, MC-CDMA multilevel Coding requires less power, around 5 dB, than the proposed system.
Developing community technology: A profile website for SDI Miftahus Sholihin Hendro Priyatman; Seno Darmawan Panjaitan; Hilda Hilda; Eka Kusumawardhani; Leonardus Sandy Ade Putra
Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Vol. 9 No. 1 (2024): February 2024
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/abdimas.v9i1.12323

Abstract

The Community Service Program titled "Developing Community Technology: A Profile Website for SDI Miftahus Sholihin" aims to address various challenges associated with school accreditation through the utilization of information and communication technology (ICT). The program's objectives are to enhance the quality of education and facilitate better access to information. It entails the design, development, and management of a profile website for SDI Miftahus Sholihin, alongside training sessions focused on website management and promotion strategies. These efforts are geared towards achieving improvement targets in school accreditation. The program timeline spans six months, encompassing phases of preparation, coordination, website development, training, and evaluation. Anticipated outcomes include heightened information quality and accessibility pertaining to school-related matters, as well as the enhancement of website management skills among school staff. Ultimately, the program aspires to elevate the educational quality of SDI Miftahus Sholihin, foster greater community engagement in educational initiatives, and facilitate the attainment of higher accreditation standards for the school.
Workshop on Environmental Compassion and Energy-Saving Character Development Maleiva, Lalak Tarbiyatun Nasyin; Nugraheni, Putranty Widha; Putra, Leonardus Sandy Ade; Kusumawardhani, Eka; Abidin, Zainal
REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Vol 5, No 2 (2024): REKA ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaelkomika.v5i2.109-116

Abstract

The cultivation of strong character in schools can be achieved through character education. One promising approach to cultivating a deep affection for the environment is through the Workshop on Environmental Compassion and Energy Savings Character Development. Hence, it is essential to educate individuals about the implementation of the 4R (Reduce, Reuse, Repair, Recycle) principles and minimize energy when utilizing electronic devices in households and schools. By nurturing a foundational awareness of energy conservation and environmental consciousness at Bruder Melati Pontianak Elementary School, it is expected that the teachers will be able to impart this knowledge. Through the implementation of dissemination, school citizens gain a greater comprehension and consciousness of the 4R movement and the more prudent utilization of electricity by 94.4%. Furthermore, they acquire fresh perspectives concerning the energy-saving patterns of daily electrical energy use, thereby contributing to the betterment of society as a whole.
ANALYSIS OF QUALITY OF SERVICE OF THE 4G LTE NETWORK IN THE WATERFRONT AREA OF PONTIANAK CITY ., Suhardi; Yacoub, Redi Ratiandi; Ade Putra, Leonardus Sandy; W, F. Trias Pontia; Imansyah, Fitri
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 12, No 2: August 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v12i2.76409

Abstract

Internet availability must be sufficient to meet the needs of the era, supported by extensive coverage and robust network stability. Every provider competes in the current internet market, especially in Pontianak City. This research aims to analyze the Quality of Service (QoS) of the 4G LTE networks provided by three widely-used providers in the community. The research results indicate that the Quality of Service of the 4G LTE network in the Waterfront area of Pontianak City falls into the good category. Measurements in the afternoon show good quality, supported by the close proximity between the research location and the Base Transceiver Station (BTS) without interference. However, data transfer speed experiences a decline in some measurements, especially during cloudy weather and busy visitor periods, affecting network jitter parameters. In the evening measurements, despite obtaining fairly good values on some parameters, throughput still receives a poor rating. The decrease in quality in jitter parameters occurs on the first and second nights due to the density of visitors and excessive queuing in the network. The reasons for the poor quality of the cellular network include obstacles from tall buildings, longer transmission distances due to river expanses, and bad weather. Internet user density also affects signal strength. Furthermore, the distance between the BTS and devices plays a crucial role in network propagation, so an efficiently designed 4G network should provide even coverage and consistent quality.
PROTOTYPE NURSE CALL WIRELESS FOR COVID-19 HOSPITAL PATIENT SERVICES fredho, Gabriel; Pontia, F. Trias; Putra, Leonardus Sandy Ade
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 12, No 2: August 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v12i2.76847

Abstract

The role of technology has a positive impact on companies or institutions, which allows companies to implement all functions within the company more quickly and easily. The use of technology in health services increases efficiency in hospitals with hospital services having to be faster, friendlier and more accurate. Some services in hospitals require the role of technology so that hospital services for patients can be handled more quickly, namely requiring technology that is able to monitor and treat inpatients. Improving services performed by hospitals and speeding up response times by using technology in patient calling. Currently, the development of nurse call bells has also been seen in hospitals as a form of effort to increase the response time of nurses in providing services to patients. The purpose of this research is to build a system that can make it easier for Covid 19 patients to call nurses, and make it easier for nurses to find Covid 19 patients who need action. The design uses Arduino Nano with LoRa communication. The system created refers to Covid-19 patients who need action. There are 3 indicators that patients can choose, namely emergency action, moderate action and usual action. This system is in the form of an indicator light aimed at the nurse on duty in the nurse control room. The test results of the wireless nurse call prototype were carried out with several variations, where when the condition without obstruction walls (LOS) the prototype worked within a maximum range of 40 meters. Under the condition of being given an obstacle (NLOS) of 1 obstacle wall, the prototype works within a maximum range of 35 meters. Whereas with the condition of being given a barrier (NLOS) of 2 obstacle walls, the prototype works within a maximum range of 30 meters. So that the condition of the distance between the nurse's control room and the patient's room affects the performance of the Nurse Call Wireless prototype.
NETWORK KPI ANALYSIS IN NETWORK SHARING TECHNOLOGY CONFIGURATION BASED ON MULTI-OPERATOR CORE NETWORK (MOCN) Widiantoro, Andreas Gunawan; Tjahjamooniarsih, Neilcy; Marpaung, Jannus; Kusumawardhani, Eka; Ade Putra, Leonardus Sandy
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 11, No 2: August 2023
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v11i2.68684

Abstract

The reliable spread of BTS networks with high system capacity poses a challenge for operators in delivering services. An alternative strategy is network sharing, one of which is MOCN (Multi Operator Core Network). MOCN BTS is configured to share RF module and antenna resources by combining frequencies between operators while maintaining each operator's core. On the other hand, BTS not-pair is the conventional operator configuration where RF modules and antennas are installed independently without any connection to other operators. In this final project, a KPI data analysis is conducted for both BTS configuration to assess their reliability. Four BTS samples from two operators (IM3 and 3ID) are taken for this analysis. The analyzed KPI categories include Accessibility KPI, Retainability KPI, and Service Integrity KPI during busy hours. KPI data is obtained from field results and assisted by the technical team from Indosat Ooredoo Hutchison Pontianak. The analysis results indicate that in terms of Service Integrity KPI, BTS MOCN outperforms BTS not-pair, with a difference of 2.590175 Mbps for downlink and 0.286065 Mbps for uplink. Regarding Accessibility KPI and Retainability KPI, BTS managed by 3ID demonstrates better performance compared to those managed by IM3.
Analisis Pengaruh Booster RC832 Terhadap Kualitas Citra Drone First Person View (FPV) Menggunakan Parameter SINPO Mubaarak, Mochammad Rifqi; Ade Putra, Leonardus Sandy; Imansyah, Fitri
Jurnal Teknik Elektro dan Komputasi (ELKOM) Vol 6, No 1 (2024): ELKOM
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/elkom.v6i1.22417

Abstract

Drone First Person View (FPV) adalah suatu drone yang mendukung untuk menampilkan citra sebagai sudut pandang orang pertama dalam penerimaannya, dalam penerimaan tersebut dapat menggunakan Virtual Reality (VR) ataupun dengan menggunakan monitor yang dapat menampilkan citra. Perlunya sebuah drone yang dapat menampilkan citra sudut pandang orang pertama (first person view) sebagai salah satu inovasi dalam mengembangkan teknologi drone, akan tetapi dengan adanya inovasi ini turut mendorong juga untuk dilakukan inovasi pada penguatan citra yang di transmit oleh drone FPV dan di receive oleh monitor 5,8 GHz. Semakin jauh jarak antara pemancar drone dengan penerima monitor akan memperbesar kemungkinan sinyal untuk melemah, ini dapat menyebabkan hilangnya citra yang dikirimkan drone ataupun menghasilkan gambar yang kurang baik dari Drone FPV. Penerimaan citra drone yang buruk dapat dipengaruhi oleh banyak hal yang didapatkan seperti adanya interferensi dari frekuensi yang berdekatan, terdapat noise ataupun kanal propagasi yang buruk atau adanya gangguan fading yang disebabkan tidak stabilnya sinyal dipengaruhi oleh berbagai kondisi seperti pada kondisi Line Of Sight (LOS) dan Non Line Of Sight (NLOS). Kualitas hasil penerimaan citra Drone FPV yang diterima oleh Monitor FPV LCD 5802S mendapatkan hasil yang optimal dalam penggambaran citra pada Channel A7 dengan frekuensi 5745 MHz dengan nilai SINPO yaitu 55545 yang artinya lebih baik dengan ditambahkannya Booster RC832 pada monitor menghasilkan sinyal yang lebih stabil serta lebih kuat dari sebelumnya.
Klasifikasi Rambu Lalu Lintas Menggunakan Ekstraksi Ciri Wavelet Dan Jarak Euclidean Abdi Gunawan, Vincentius; Imelda Fitriani, Ignatia; Sandy Ade Putra, Leonardus
Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Vol. 3 No. 1 (2019)
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/eltikom.v3i1.105

Abstract

Driving is one of the human activities in which daily life is often done. Driving can be done by land, air, and sea. Human mobility in driving is very high on land routes using various means of transportation. For the sake of smooth driving, roads are often equipped with traffic signs in each traffic area. Traffic signs are a means for road users to provide information and guidance for motorists about the situation in the surrounding area. The number of motorists who lack awareness of the knowledge of reading traffic signs is one of the biggest causes of accidents in Indonesia. So that a system is needed that can help in recognizing traffic signs, especially prohibited signs. The system designed using Haar Wavelet feature extraction and Euclidean distance as a classification. From the data that has been tested, the level of recognition in reading traffic signs is prohibited by 92%.
PADDY PAST TRAP SYSTEM BASED ON LONG RANGE COMMUNICATION Juanda, Juanda; Marpaung, Jannus; Putra, Leonardus Sandy Ade; Imansyah, Fitri; Yacoub, Redi Retiandi
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 1, No 1: June 2023
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v1i1.69895

Abstract

Indonesia is an agricultural country that produces rice plants. The decline in crop yields was caused by pests and had an impact on rice plants which experienced yellowing leaves, broken stems, until the rice fruit became empty. Test results data in the form of numbers in certain units will be presented in the form of tables and graphs. To find out the symptoms or behavior of the system at the time of testing, an analysis is carried out. The research was conducted for 5 nights starting at 18.00 until 06.00 WIB. The LoRa sender will send data when a pest lands on a 1000-1500 VDC wire net. In the research conducted, a total of 97 pests were found. The peak of pest attacks occurs at 19:00 to 20:00 WIB. Walang sangit attacks rice plants in all phases, so it is not surprising that this pest has the largest number, namely 87 pests. The rain that falls makes the lights dim thereby reducing the interest of the pests in the pest traps. Lamps with a wavelength of 500 nm can attract the attention of nocturnal pests that attack rice plants at night.
IOT INTEGRATION IN WEB-BASED LECTURER ATTENDANCE SYSTEM TO IMPROVE ACADEMIC COMMUNICATION Saputra, Surya Darma Hadi; Putra, Leonardus Sandy Ade; Yacoub, Redi Ratiandi
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 2, No 2: October 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v2i2.84511

Abstract

Effective relationships between students and lecturers are essential in supporting the Tri Dharma of Higher Education, but difficulties in communication and meetings can hinder this process. Internet of Things (IoT) technology offers a solution by enabling real-time management of lecturer attendance information. This research aims to: (1) design a website-based lecturer attendance information system, (2) test the system design on the device and information system, and (3) analyze the performance of the integrated system. The methodology used is the RD (Research and Development) method, which involves needs analysis, design, development, and system testing. The test results show that the designed system is able to provide information related to lecturer attendance well. Of the 10 samples, 7 were successfully enrolled in the database, and 6 successfully performed fingerprint matching. Data management is done well, although there are challenges such as the need for a stable network. The design of the device involved complex procedures, including WiFi configuration and fingerprint matching using a MySQL database, showing the potential for further development. This web-based IoT system can be accessed through various gadgets such as smartphones, laptops, or computers, making it easier for users to access information. Overall, this system provides a practical and efficient solution to improve communication and meetings between lecturers and students.