IMPLEMENTASI DAN EVALUASI KINERJA FREQUENCY HOPPING SPREAD SPECTRUM (FHSS) MENGGUNAKAN WARP

SARI, RINI NURPITA (2015) IMPLEMENTASI DAN EVALUASI KINERJA FREQUENCY HOPPING SPREAD SPECTRUM (FHSS) MENGGUNAKAN WARP. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Proses pengiriman informasi dari pengirim ke penerima terkadang terdapat gangguan, maka untuk mengatasi masalah tersebut dapat menggunakan metode Spread Spectrum, yang merupakan teknik pengiriman sinyal yang tahan terhadap gangguan berupa noise maupun jamming. Frequency Hopping Spread Spectrum merupakan sinyal informasi ditransmisikan yang dilompat ke dalam suatu spektrum frekuensi secara random atau sesuai pola tertentu. Spektrum tersebut sudah dialokasikan menjadi beberapa channel yang diperuntukkan untuk frequency hopping signal. Dalam Tugas Akhir ini, akan diimplementasikan sistem komunikasi SISO pada FHSS menggunakan Wireless Open Access Research Platform (WARP). Sistem FHSS ini akan dimodelkan dengan menggunakan software Matlab. Ketahanan sistem FHSS terhadap Single Tone Jamming dan Multi Tone Jamming akan diketahui dengan melakukan beberapa pengujian. Hasil yang diperoleh nilai Bit Error Rate (BER) akan semakin kecil jika daya yang dipancarkan semakin besar, sedangkan pada jamming dipengaruhi oleh nilai daya jamming. Penelitian ini menunjukan bahwa kinerja sistem berjalan baik saat Single Tone Jamming lebih baik dari pada Multi Tone Jamming. Hal ini dibuktikan dengan hasil nilai BER saat daya jamming 300% untuk Single Tone Jamming sebesar 0.4194, dan Multi Tone Jamming sebesar 0.4892. Rata-rata sistem tidak terpengaruh oleh gangguan jamming, saat nilai daya jamming 75% dan 100%. Hasil penelitian ini menunjukkan bahwa sistem FHSS lebih tahan terhadap Single Tone Jamming dan Multi Tone Jamming dibandingkan sistem 4- ary FSK. "=============================================================================================" The process of sending an information from transceiver to receiver distortions come occasionally. to overcome those problems, the spread spectrum method could be used, it is technique to transmit signal that suffer from distortion such as noise and jamming. Frequency Hopping Spread Spectrum is transmitted information signal which jumped to one of frequency spectrum randomly or based on certain path. Those spectrum already allocated in to some channel for Frequency Hopping Signal. In this paper, an implementation of SISO communication system on FHSS system Using Wireless Open Access Research Platform (WARP) would be done. This FHSS system will be modeled using matlab software. Immunity of FHSS system to Single Tone Jamming and Multi Tone Jamming will be known by implementing some test. The result implying that Bit Error Rate (BER) value will smaller if the transmitting power larger While on jamming is influenced by jamming power. This research show that the system performance going smooth on Single Tone Jamming compared to Multi Tone Jamming. It is proved with the result of BER value when the jamming power is 300% for single tone jamming is 0,4194, and multi tone jamming is 0,4892. Commonly the system is not influenced by jamming distortion, when the jamming power is 75% and 100%. This research result shows that FHSS system more endure to single tone jamming and multi tone jamming compared to any 4-ary FSK system.

Item Type: Thesis (Undergraduate)
Additional Information: RSE 621.384 Sar i
Uncontrolled Keywords: Frequency Hopping, Spread Sectrum, Jamming, Bit Error Rate, WARP, Matlab
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7871.6 Antennas (Electronics)
Divisions: Faculty of Industrial Technology > Electrical Engineering > (S1) Undergraduate Theses
Depositing User: Mrs Ansi Aflacha
Date Deposited: 30 Jan 2017 04:43
Last Modified: 30 Jan 2017 04:43
URI: http://repository.its.ac.id/id/eprint/3925

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