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All Journal Proceeding of the Electrical Engineering Computer Science and Informatics Teknomatika: Jurnal Informatika dan Komputer
Catur Budi Waluyo
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Computer Science & IT Electrical & Electronics Engineering

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Performance Analysis for MIMO LTE on the High Altitude Platform Station Catur Budi Waluyo; Yenni Astuti
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 4: EECSI 2017
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (372.276 KB) | DOI: 10.11591/eecsi.v4.1105

Abstract

High Altitude Platform Station (HAPs) is a new communications infrastructure that uses air balloon to carry high data rate service and wide bandwidth. One technique to make it happen is Long Term Evolution (LTE), LTE support capacity increasing, expand coverage area, data rate increasing, multi- antenna, and can be integrated with other systems. To improve the performance of LTE in capacity building, coverage area, and data rate, it can use the multi-antenna techniques both on receiver or transmitter or often called multiple input multiple outputs (MIMO). Type of MIMO technique in this paper is spatial Multiplexing. In this study, an estimation that has been used is the Linear Minimum Mean Square Error (LMMSE). Channel estimation is used to find out information about the channel condition between the transmitter and the receiver so that the performance of Bit Error Rate (BER) increase and expand the coverage area of the same BER compared without estimation. The system performed channel estimation has a better performance than the without estimation system with improved SNR of 20dB. Based on the simulation to get the same BER value in the system with channel estimation and without estimation, on the system with estimation it is necessary to lower elevation angle to be 10° and still there was improvement of SNR of 3 dB compared to the system without any estimation. With lowered elevation angle from  90° to 10°, the area of coverage was greater becomes 215.77km from the original 0.032km
RANCANG BANGUN PROTOTIPE PEMANTAU KETINGGIAN AIR DI RUNWAY PESAWAT TERBANG BERBASIS NIRKABEL Catur Budi Waluyo; Sabinianus Wae Lopi; Agus Basukesti
Jurnal Teknomatika Vol 11 No 1 (2018): TEKNOMATIKA
Publisher : Fakultas Teknik dan Teknologi Informasi, Universitas Jenderal Achmad Yani Yogyakarta

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Abstract

Dalam bandar udara, aspek keselamatan penumpang pada saat pesawat landing harus diperhatikan, karena sebagian besar kecelakaan pesawat terjadi pada saat landin. Kecelakaan pesawat pada saat landing di sebabkan karena roda pesawat tergelincir dan kondisi landasan pacu tergenang air akibat hujan. Perkembangan teknologi komunikasi dalam bidang wireless semakin pesat seiring peningkatan kebutuhan akan komunikasi dan informasi dengan mobilitas yang tinggi. Oleh karena itu pada penelitian ini, membuat rancang bangun prototipe pemantau ketinggian air di landasan pacu berbasis nirkabel. Pada penelitian ini, sistem yang dirancang menggunakan Mikrokontroller, sensor ultrasonik, dan Modul Bluetooth. Mikrokontroller yang digunakan menggunakan arduino nano berfungsi untuk mengolah data masukan sinyal dari sensor ultrasonik setelah itu data dikirimkan melalui media wireless dan ditampilkan melalui Liquid Crystal Display (LCD) dan buzzer sebagai pemberi peringatan. Hasil pengukuran sensor ultrasonik pada pengukuran ketinggian air dengan rerata tingkat kesalahan sebesar 1.44% dan rerata tingkat kesalahan pengukuran volume sebesar 1.38%. Berdasarkan jarak jangkauan modul bluetooth mencapai 25meter jika tanpa halangan dan 20 meter jika modul tersebut ada halangan. Pengujian buzzer dengan batas ambang maksimum 1.27cm berhasil.
Co-Authors Agus Basukesti Sabinianus Wae Lopi Yenni Astuti