PERANCANGAN DAN IMPLEMENTASI SISTEM ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) DENGAN MENGGUNAKAN DSK-TMS320C6713

Authors

  • Dwi Aryanta
  • Arsyad Ramadhan Darlis
  • Yusup Mulyadi

DOI:

https://doi.org/10.25124/jett.v2i2.107

Abstract

OFDM adalah salah satu teknik transmisi yang menggunakan beberapa buah frequency subcarrier yang saling tegak lurus (orthogonal). Karakteristik yang saling tegak lurus membuat frequency subcarrier dapat saling overlap tanpa menimbulkan interferensi. Dilakukan perancangan sistem OFDM dengan menggunakan DSK (Digital Signal Processing Starter Kit) TMS320C6713 berbasis m-file dan Simulink dengan menggunakan beberapa modulasi diantaranya QPSK, 16QAM, dan 64QAM. Pengujian dilakukan dengan membandingkan hasil keluaran dari diagram konstelasi sinyal, sinyal OFDM, dan Bit Error Rate (BER) pada m-file, Simulink dan DSK TMS320C6713. Hasil BER yang ditunjukan pada saat implementasi, Modulasi QPSK memiliki nilai BER yang paling baik dari pada modulasi 16QAM dan 64QAM. Pada nilai Eb/No 10dB, modulasi QPSK memiliki nilai BER sebesar 0,14400, modulasi 16-QAM memiliki nilai BER sebesar 0,253600, dan modulasi 64-QAM memiliki nilai BER sebesar 0,288700. Kemudian modulasi QPSK memiliki efisiensi memori yang paling baik sebesar 1,0530303 % setelah diimplementasikan pada DSK TMS320C6713.

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Published

2016-07-26

Issue

Vol. 2 No. 2: JETT Desember (2015)

Section

Articles

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