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Komparasi dan Optimasi Model Propagasi Pada Sistem Komunikasi Seluler Di Kota Palembang Fadhli, Mohammad; Soim, Sopian
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 2: July 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (364.641 KB) | DOI: 10.25077/jnte.v9n2.773.2020

Abstract

Various propagation models can be used to predict path loss. Each propagation model is classified according to its environment categories. These environment categories are purely subjective, therefore to get accurate predictions, proper environment category selection is needed. In this paper, four propagation models are compared with RSL measurements at five sites in Palembang City. The models being compared are Okumura Hata, ECC-33, Ericsson, and SUI. Based on comparison using RMSE parameters, large urban is the appropriate environment category for Palembang City in the Okumura Hata model. For ECC-33, the appropriate environment category is medium urban. In the Ericsson model, the appropriate category is suburban, and terrain type A for SUI model. From the comparison of four models based on RMSE and standard deviations, it is known that for measurement results of five sites in Palembang City, the ECC-33 model has high accuracy with RMSE of 3,28 dB and standard deviation of 2,74 dB. After optimization, the Okumura Hata model provides an RMSE of 1,75 dB and a standard deviation of 0,76 dB. It is recommended to use the Medium Urban ECC-33 model or the optimized Large Urban Okumura Hata model to predict path loss in Palembang City.Keywords : Propagation Models, Optimization, Environment Categories, Okumura Hata, ECC-33, Ericsson, SUI.' AbstrakTerdapat berbagai macam model propagasi yang dapat digunakan untuk memprediksi path loss. Setiap model propagasi diklasifikasikan berdasarkan kategori lingkungannya. Pembagian kategori lingkungan ini bersifat subjektif, sehingga untuk mendapatkan prediksi yang akurat diperlukan pemilihan kategori lingkungan yang tepat. Penelitian ini membandingkan empat jenis model propagasi dengan hasil pengukuran RSL pada lima site di Kota Palembang. Model yang dibandingkan adalah Okumura Hata, ECC-33, Ericsson dan SUI. Berdasarkan komparasi menggunakan parameter RMSE, Kota Palembang menurut model Okumura Hata termasuk dalam kategori large urban. Sedangkan pada model ECC-33 termasuk kategori medium urban. Pada model Ericsson termasuk kategori suburban, dan pada model SUI termasuk dalam tipe terrain A. Dari perbandingan keempat model berdasarkan RMSE dan standar deviasi, diketahui bahwa pada hasil pengukuran lima site di Kota Palembang, model ECC-33 memiliki akurasi yang tinggi dengan RMSE 3,28 dB dan standar deviasi 2,74 dB. Setelah dioptimasi, model Okumura Hata juga memberikan akurasi prediksi yang tinggi, dengan RMSE 1,75 dB dan standar deviasi 0,76 dB. Sehingga disarankan untuk menggunakan model ECC-33 medium urban atau model Okumura Hata large urban yang telah dioptimasi untuk mempredikasi path loss di Kota Palembang.Kata Kunci : Model Propagasi, Optimasi, Kategori Lingkungan, Okumura Hata, ECC-33, Ericsson, SUI
Rancang Bangun Monitoring Tumpukan Sampah Pada Saluran Air Berbasis Long Range Lanang, Jabbar Kala; Taqwa, Ahmad; fadhli, Mohammad
Patria Artha Technological Journal Vol 6, No 1 (2022): Patria Artha Technological Journal
Publisher : Department of Electrical Engineering, University of Patria Artha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33857/patj.v6i1.454

Abstract

A water channel is a building made for the process of draining water. The water channel will drain water from a high place to a lower place. Waterways are commonly used to drain rainwater, irrigate rice fields and household wastewater. The problem that often arises in waterways is the accumulation of garbage. Garbage that accumulates can clog drains. Clogged drains can cause environmental problems such as flooding, water pollution, sources of unpleasant odors, and breeding grounds for mosquitoes. Garbage problems that arise in waterways must be addressed immediately. One form of solving the problem of piles of garbage in waterways is the process of monitoring the state of the waterways. The process of monitoring waterways aims as a form of monitoring the condition of waterways. In the current technological era, the process of monitoring water flow can be done remotely by utilizing internet of things technology. The monitoring process using internet of things technology can facilitate monitoring work because there is no need to visit the location to see the condition of the waterways. The design of monitoring waste piles in loRa-based waterways is a tool design to facilitate the process of monitoring waste in waterways. The monitoring process is carried out by paying attention to the water discharge to determine the condition of the water channel. The process of sending data on waterways uses the LoRa transmission system.