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Ardian Ulvan
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Dynamic Spectrum Access (Dsa) Dengan Mekanisme Spectrum Sensing Berbasis Pendeteksian Kanal Dan Bandwidth Untuk Efisiensi Spektrum Maria Ulfa Muthmainah; Ardian Ulvan; Hery Dian Septama
Jurnal Informatika dan Teknik Elektro Terapan (JITET) Vol 3, No 1 (2015)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (505.497 KB) | DOI: 10.23960/jitet.v3i1.532

Abstract

Abstrak – Perkembangan teknologi yang semakin pesat dan bertambahnya permintaan akses layananyang semakin cepat menyebabkan kebutuhan spektrum meningkat. Pada mekanisme Static SpectrumAccess (SSA) meningkatnya kebutuhan spektrum tidak diimbangi dengan alokasi spektrum yang adasehingga terdapat kanal yang tidak digunakan (idle) yang menyebabkan spektrum perlu diefisiensikan.Cara untuk mengelola spektrum agar lebih efisien dapat dilakukan dengan prinsip Dynamic SpectrumAccess (DSA). Mekanisme spectrum sensing berbasis pendeteksian kanal dan bandwidth menjadibahasan dalam penelitian ini. Pada penelitian ini penentuan kanal idle ditentukan dengan algoritmapendeteksian kanal dan bandwidth. Perhitungan dilakukan dengan menghitung parameter pendeteksianyaitu daya transmit. Besar daya threshold (Pth) dibandingkan dengan besar daya noise (Pnoise). Jikadaya threshold lebih besar dari daya noise (Pth > Pnoise) maka kanal idle dinyatakan terdeteksi,sementara sebaliknya kanal idle tidak terdeteksi. Hasil perhitungan menunjukkan bahwa kanal idleterdeteksi pada keseluruhan bandwidth apabila user lain terdeteksi dengan bit rate yang rendah.Bandwidth 5 MHz memiliki ketersedian kanal idle lebih besar dibandingkan 3 MHz, dan 1,4 MHz.Dengan terdeteksinya kanal idle pada suatu bandwidth menjadikan penggunaan spektrum denganmekanisme spectrum sensing menjadi efisien. Jarak maksimum user untuk dapat melakukanpendeteksian kanal idle sejauh 250 meter (n=3) dan 15 meter (n=4).  Kata kunci - efisiensi spektrum, DSA, kanal idle, spectrum sensing.
Analisa Unjuk Kerja Mobile Based Tranceiver Station untuk Kestabilan Infrastruktur Sistem Komunikasi Seluler Melvi .; Ardian Ulvan; Ricky Fernando
Jurnal Rekayasa Elektrika Vol 11, No 1 (2014)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.939 KB) | DOI: 10.17529/jre.v11i1.1988

Abstract

The stability of the telecommunications system infrastructure, particularly in the area experienced disastrous, should be restored as soon as possible to recover communication services. One solution for the recovery is by implementing a mobile Base Transceiver Station (BTS), which can be installed easily. In this work, an analysis of Arrow type Combat mobile BTS is conducted in the area of Terbanggi Agung, Central Lampung. The performance measurement and data analysis are performed on the three sectors of the cell coverage. The Received Total Wideband Power (RTWP), Call Completion Success Rate-Packet Switched (CCSR-PS) and Call Completion Success RateCircuit Switched (CCSR-CS) are taken at regular intervals (per hour for 24 hours), based on the standard Key Performance Indicator (KPI) of the International Telecommunication Union (ITU). The results showed that the average value of RTWP on each sector is 105 dB, while the value of CCSR-PS and CCSR-CS are above 95%. Moreover, the measured value of RTWP are less than the standard, which is assumed due to interference from neighbour BTS uplink frequency, despite the possibility of interference was small. In overall, the RTWP values, the CCSR-PS and CCSR-CS meet the standards of the ITU-T Recommendation E.850.Keywords: mobile BTS, received total wideband power (RTWP), call completion success rate- packet switched (CCSRPS), call completion success rate-circuit switched (CCSR-CS)
Analisa Unjuk Kerja Mobile Based Tranceiver Station untuk Kestabilan Infrastruktur Sistem Komunikasi Seluler Melvi .; Ardian Ulvan; Ricky Fernando
Jurnal Rekayasa Elektrika Vol 11, No 1 (2014)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v11i1.1988

Abstract

The stability of the telecommunications system infrastructure, particularly in the area experienced disastrous, should be restored as soon as possible to recover communication services. One solution for the recovery is by implementing a mobile Base Transceiver Station (BTS), which can be installed easily. In this work, an analysis of Arrow type Combat mobile BTS is conducted in the area of Terbanggi Agung, Central Lampung. The performance measurement and data analysis are performed on the three sectors of the cell coverage. The Received Total Wideband Power (RTWP), Call Completion Success Rate-Packet Switched (CCSR-PS) and Call Completion Success RateCircuit Switched (CCSR-CS) are taken at regular intervals (per hour for 24 hours), based on the standard Key Performance Indicator (KPI) of the International Telecommunication Union (ITU). The results showed that the average value of RTWP on each sector is 105 dB, while the value of CCSR-PS and CCSR-CS are above 95%. Moreover, the measured value of RTWP are less than the standard, which is assumed due to interference from neighbour BTS uplink frequency, despite the possibility of interference was small. In overall, the RTWP values, the CCSR-PS and CCSR-CS meet the standards of the ITU-T Recommendation E.850.Keywords: mobile BTS, received total wideband power (RTWP), call completion success rate- packet switched (CCSRPS), call completion success rate-circuit switched (CCSR-CS)
Co-Authors Hery Dian Septama Maria Ulfa Muthmainah Melvi . Ricky Fernando