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All Journal snimed Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Proceeding of the Electrical Engineering Computer Science and Informatics Jurnal Ilmiah FIFO Communications in Science and Technology Jurnal Teknologi Informasi dan Terapan (J-TIT) Buletin Ilmiah Sarjana Teknik Elektro Jambura Journal of Electrical and Electronics Engineering Jurnal Instrumentasi Jurnal Pengabdian Masyarakat Nasional
Tito Yuwono, Tito
Universitas Islam Indonesia
Agriculture, Biological Sciences & Forestry Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology

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Journal : Seminar Nasional Aplikasi Teknologi Informasi (SNATI)

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Comparison of Smart Antenna Technique Based on Adaptive Antenna Systems and Switched Beam Systems Tito Yuwono; Mahamod Ismail; Zuraidah Zainudin
Seminar Nasional Aplikasi Teknologi Informasi (SNATI) 2004
Publisher : Jurusan Teknik Informatika, Fakultas Teknologi Industri, Universitas Islam Indonesia

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Abstract

The continuous increment of mobile communication subscribers, require a highercapacity and spectrum efficiency of the cellular system especially in an urban area where thetraffic density is high. In order to accommodate the increasing number of subscribers, smartantenna technology is used to improve system’s performance, which could increase thenumber of call and data transmission as well as simplifying the networking management. Thebasic principle of a smart antenna is to control and reduce the effect of interference toprovide the user with the highest quality of uplink and downlink signal. This can be achievedby using narrow beams with signal processing capability at the base sites and to optimize itsradiation pattern, which automatically updated according to MS movement or as signalsconditions change. In this study, two types of smart antenna were considered, which are theswitched beam systems and adaptive antenna systems. The significant difference betweenthese two systems is from the beamforming point of view. The key part of this study is todevelop a simulator for adaptive antenna systems (AAS) and switched beam systems (SBS)based on GSM 900 in order to determine the factors that could affect network’s quality andcapacity. Simulation results of different techniques are compared and the performanceevaluations of C/I are discussed. Results show that the AAS gives a better performancecompared to SBS, with average improvement of C/I around 5 to 10 dB.Keywords: smart antenna, adaptive, switched beam,C/I
Kendali Daya Dinamis pada Pemancar (Base Station) Sistem Komunikasi Generasi Ketiga WCDMA Tito Yuwono; Mahamod Ismail
Seminar Nasional Aplikasi Teknologi Informasi (SNATI) 2004
Publisher : Jurusan Teknik Informatika, Fakultas Teknologi Industri, Universitas Islam Indonesia

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Abstract

WCDMA telah dipilih sebagai air interface untuk sistem UMTS. Air interface inibekerja berdasarkan pada sistem akses jamak CDMA. Kendali daya dinamis diperlukanuntuk mendapatkan kualitas yang baik dengan daya yang minimum, sehingga kapasitassistem dapat ditingkatkan. Dari hasil simulasi didapatkan SINR 3,6001 dengan daya padapemancar 0.0825 watt, 0.0412 watt, dan 0,0466 watt.Kata kunci: kendali daya, daya, WCDMA, SINR.
Co-Authors Adi Nugroho Agus Setiawan Anugrah Galang Persada Anugrah Galang Persada, Anugrah Galang Azzahra, Salma Qonita Baharuddin, Mohd Hafiz Desyandri Desyandri Dewi, Sri Kusuma Dwi Ana Ratna Wati Elyza Gustri Wahyuni Erlina Marfianti, Erlina Fallahian, Faris Fatha Franz, Annafi’ Hanis, Hanas Muchammad Husain, Abdullah Ipin Prasojo Ipin Prasojo, Ipin Irawan, Dudi Irawan, Erwin Yan Irawan, Erwin Yan Isti’anah, Siti Isti’anah, Siti Izzati Muhimmah Junanah Junanah, Junanah Kusriyanto, Medilla Kusriyanto, Medilla Mahamod Ismail Mahamod Ismail Mansor, Mohd Fais Nanang Nuryanta, Nanang Noor Akhmad Setiawan Norbahiah Misran Nugroho, Adi Persada, Anugrah Galang Prasojo, Ipin Rahmadi, Ridho Ridho Rahmadi Ridho Rahmadi Sri Kusuma Dewi Sri Kusuma Dewi, Sri Kusuma Wildan Firdaus Zhivomirov, Hristo Zuraidah Zainudin