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ITS » Undergraduate Theses » S1 Teknik Elektro
Posted by yeni at 06/02/2009 10:33:46  •  8869 Views


ESTIMASI TERDISTRIBUSI DENGAN COHERENT MAC DAN ORTHOGONAL MAC PADA JARINGAN SENSOR NIRKABEL

DISTRIBUTED ESTIMATION WITH COHERENT MAC DAN ORTHOGONAL MAC ON WIRELESS SENSOR NETWORK

Author :
Setiawan, Syahrul Faizin 




ABSTRAK

Kemajuan teknologi nirkabel memungkinkan manusia untuk mengembangkan perangkat-perangkat komunikasi dengan tingkat mobilitas yang lebih tinggi daripada sebelumnya. Bagaimana pengaruh kanal yang dimodelkan dengan metode Coherent MAC dan Orthogonal MAC untuk transmisi data antara sensor dengan fusion center dalam berbagai kondisi. Pada tugas akhir ini kami meneliti estimasi terdistribusi untuk sensor dan antara sensor dengan fusion center menggunakan dua model kanal yaitu metode Coherent MAC dan Orthogonal MAC. Kami mengadopsi Bit Error Rate BER berdasarkan data yang diterima oleh fusion center dari sensor sebagai kriteria kinerja atau performansi dengan kasus ketika sumber dan observasi adalah skalar. Perhitungan BER menggunakan metode Equal Gain Combining EGC dengan cara mengkombinasikan sinyal informasi yang diterima yang mengalami fading yang berbeda sehingga didapatkan satu sinya informasi hasil kombinasi. Hasil dari simulasi menunjukkan bahwa nilai BER untuk Coherent MAC lebih rendah ketika range SNR antara 0 dBm sampai 18 dBm tapi pada saat range SNR diatas 18 dBm sampai 30 dBm metode Orthogonal MAC memiliki kinerja lebih bagus dengan nilai BER lebih kecil dan daya rata-rata yang diterima di fusion center pada saat jumlah sensor 0 sampai 20 memiliki selish daya rata-rata sama sedangkan saat jumlah sensor diatas antara 20 sampai 200 Coherent MAC memiliki daya rata-rata yang lebih besar


ABSTRACT

Development of wireless technology posibility people to develop communication devices with higher mobility rate than before. How impact of channel to be modeled with coherent MAC and Orthogonal MAC methods to trasmitted data between sensor to fusion center in various of condition. In this final project we invetigate distributed estimation for sensor and between sensor with fusion center using two methods are Coherent MAC and Orthogonal MAC. We adopt the Bit Error Rate based on received data by fusion center from sensor as performance criterion with the case when the source and observation are scalars. The calculation of BER use Equal Gain Combining method by combining accepted information signal that infected by different fading so that got one the information him result of combination. The simulations show that the result of BER for Coherent MAC method is lower for range SNR 0 dBm until 18 dBm but for over 18 dBm until 30 dBm Orthogonal MAC have better performance when result of BER is lower and mean of received data by fusion center when large number of sensor 0 until 20 have same difference but when the large sensor over 20 until 200 Coherent MAC have mean of data received is higher



Keywordsteknologi nirkabel; Coherent MAC; Orthogonal MAC; Bit ;Error Rate; Equal Gain Combining; fusion center
 
Subject:  Wireless communiccation systems;Telepon seluler, industri
Contributor
  1. Dr. Ir. Wirawan, DEA
    Istas Pratomo, ST, MT
Date Create: 06/02/2009
Type: Text
Format: pdf.
Language: Indonesian
Identifier: ITS-Undergraduate-3100009034168
Collection ID: 3100009034168
Call Number: RSE 621.384 Set e


Source
Undergraduate Theses, Electrical Engineering, RSE 621.384 Set e, 2008

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