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All Journal ELKHA : Jurnal Teknik Elektro JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Refleksi Pembelajaran Inovatif
Wisudawan, Hasbi Nur Prasetyo
Fakultas Teknologi Industri, Universitas Islam Indonesia
Humanities Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Social Sciences

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Performance Analysis of STBC 4x4 MIMO using Ray Tracing Channel Modelling in WLAN Technology Hasbi Nur Prasetyo Wisudawan; Suhartono Tjondronegoro
JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Vol 5, No 1 (2021): EDISI JULY 2021
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jite.v5i1.5206

Abstract

IEEE 802.11n technology comes with many advantages such as high data rate and reliability. In 2,4 GHz and 20 MHz bandwidth, it gives data rate up to 300 Mbps. In order to improve reliability without complexity, it uses STBC (Space Time Block Coding) using Alamouti algorithm. This algorithm can be implemented with many STBC scheme, i.e., 2x1, 2x2, 3x1, 3x2, 3x3, 4x1, 4x2, 4x3 and 4x4 using BPSK, QPSK, 16-QAM and 64-QAM modulation. Impulse respons of (Laboratorium Telekomunikasi Radio dan Gelombang Mikro) LTRGM indoor channel can be modeled by using ray tracing method. This simulation also investigates the effect of MIMO channel corelation caused by channel fading and physical antenna factor. The results, LTRGM indoor channel give delay spread and rms delay of 71.94 ns and 1.5 ns respectively. The ergodic channel capacity declines steadily as the channel correlation becomes worse. This problem also cause a decrease in SNR performance to achieve SER of 10-3 with various modulation. However, this does not have significant influence on WLAN system that uses STBC with four both transmit and receive antenna
Metode Pembelajaran Efektif Berbasis Proyek Kelompok Secara Daring pada Mata Kuliah Teknologi Mitigasi Bencana Hasbi Nur Prasetyo Wisudawan; Lukito Edi Nugroho
Refleksi Pembelajaran Inovatif Vol 3, No 2 (2021): Volume 3 Nomor 2 Tahun 2021
Publisher : Universitas Islam Indonesia

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Abstract

Metode pembelajaran daring menjadi kebutuhan mendasar dalam proses pembelajaran di berbagai mata kuliah yang diajarkan selama kondisi pandemi saat ini. Teknologi Mitigasi Bencana merupakan salah satu mata kuliah pilihan Program Studi Teknik Elektro yang menggunakan proyek berbasis kelompok sebagai salah satu tugas perkuliahan semester genap 2020/2021 ini. Poster desain sistem peringatan dini (early warning system, EWS) merupakan luaran wajib dari setiap kelompok yang terdiri dari lima orang. Selain kejelasan dalam pembagian tugas, keberagaman metode dalam proses pemantauan tugas dan peran ketua atau koordinator kelompok memiliki andil yang besar dalam mencapai target penyelesaian. Pemberian umpan-balik secara rutin dan penerapan lini-masa (timeline) merupakan faktor pendorong penting agar setiap kelompok memiliki frekuensi atau kecepatan yang sama. Selain dukungan modul pembelajaran dan video penerapan EWS, hadirnya pembicara tamu dalam perkuliahan beserta skenario pelaksanaannya dapat menambah wawasan nyata terhadap teknologi yang dibuat.
Design and Implementation of Real-Time Flood Early Warning System (FEWS) Based on IoT Blynk Application Hasbi Nur Prasetyo Wisudawan
ELKHA : Jurnal Teknik Elektro Vol. 13 No. 2 October 2021
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/elkha.v13i2.49003

Abstract

Disaster occurrence in Indonesia needs attention and role from all parties including the community to reduce the risks.  Disaster mitigation is one of the ways to reduce the disaster risk through awareness, capacity building, and the development of physical facilities, for example by applying disaster mitigation technology (early warning system, EWS). EWS is one of the effective methods to minimize losses due to disasters by providing warning based on certain parameters for disasters which usually occur such as floods. This research promotes a real-time IoT-based EWS flood warning system (Flood Early Warning System, FEWS) using Arduino and Blynk as well as Global System for Mobile Communication network (GSM) as the communication medium. The steps for implementing FEWS system in real locations are also discussed in this paper. Parameters such as water level, temperature, and humidity as well as rain conditions that are read by the EWS sensor can be accessed in real-time by using android based Blynk application that has been created. The result of the measurement of average temperature, humidity, and water level were 28.6 oC, 63.7 %, and 54.5 cm. Based on this analysis, the parameters indicated that the water level is in normal condition and there are no signs indicating that there will be flooding in the 30 days observation.  Based on the data collected by the sensor, FEWS can report four conditions, namely Normal, Waspada Banjir (Advisory), Siaga Banjir (Watch), and Awas Banjir (Warning) that will be sent immediately to the Blynk FEWS application user that has been created.
Co-Authors Lukito Edi Nugroho Suhartono Tjondronegoro