The Performance of Turbo Coded Orthogonal Frequency Division Multiplexing System over Flat Rayleigh Fading Channel

Authors

  • Khamis A. Zidan Computer & Software Engineering Department, Al-Mustansiriyah University, Baghdad, Iraq Author
  • Raghad Z. Al-Macdici Computer & Software Engineering Department, Al-Mustansiriyah University, Baghdad, Iraq Author
  • Fadel S. Hassen Electrical Engineering Department, Al-Mustansiriyah University, Baghdad, Iraq Author
  • Noor Al-Mahdaoy Electrical Engineering Dept., College of Eng. Al-Nahrain University, Baghdad, Iraq Author

Keywords:

.

Abstract

This work investigates the effectiveness of Turbo Codes and Orthogonal Frequency Division Multiplexing (OFDM) system, for communication over the flat Rayleigh fading additive white Gaussian noise (AWGN) channel. The Fast Fourier Transform (FFT) is used in the transmitter and receiver to satisfy the orthogonality between sub-carriers and reduce the implementation complexity. The system performance is investigated for various Doppler frequencies for channel. To reduce the interference at receiver, a guard time with cyclic extension is used. The simulation results show that the turbo code orthogonal frequency division multiplexing (TCOFDM) system achieves large coding gain with lower BER and reduced decoding iterations, where the Turbo code improves the performance of OFDM system by a factor of 5-8 dB, therefore offering higher data rate in wireless mobile communications. 

   

Downloads

Key Dates

Published

2009-03-01

Issue

Vol. 13 No. 1 (2009): Journal of Engineering and Development

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The Journal of Engineering and Sustainable Development is an open-access journal that all contents are free of charge. Articles of this journal are licensed under the terms of the Creative Commons Attribution International Public License CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/legalcode) that licensees are unrestrictly allowed to search, download, share, distribute, print, or link to the full texts of the articles, crawl them for indexing and reproduce any medium of the articles provided that they give the author(s) proper credits (citation). The journal allows the author(s) to retain the copyright of their published article.
Creative Commons-Attribution (BY)

How to Cite

The Performance of Turbo Coded Orthogonal Frequency Division Multiplexing System over Flat Rayleigh Fading Channel. (2009). Journal of Engineering and Sustainable Development, 13(1), 73-88. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1535

Most read articles by the same author(s)