Research of turbo coding system on the basis of recursive systematic encoders

Authors

  • Леонід Францович Політанський Chernivtsi National University named after Yuriy Fedkovych str. Kotsyubinskogo, 2, Chernivtsi, 58012, Ukraine
  • Олег Миронович Еліяшів Chernivtsi National University named after Yuriy Fedkovych str. Kotsyubinskogo, 2, Chernivtsi, 58012, Ukraine
  • Назарій Григорович Гладун Chernivtsi National University named after Yuriy Fedkovych str. Kotsyubinskogo, 2, Chernivtsi, 58012, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2012.5991

Keywords:

VHDL, turbo-encoder, antinoise coding

Abstract

For the research, the turbo-encoding method was chosen. It refers to the method of the direct correction of errors. We have implemented and studied programmatically the turbo-encoding and decoding systems, according to the method of maximum final probability. The model of a turbo-encoder is based on the use of the recursive systematic convolutional encoders and the use of interleaver for the connection of the encoders. We have implemented and calculated the decoding model by the method of maximum final probability using feedback and the decoder of the output hard decision. The simulated operation of the system was implemented in the hardware description language VHDL, which allows its implementation on the EPLD structures. The special features of the system turbo-encoding development in VHDL (Very high integrated circuits Hardware Description Language) include the possibility of using the system as a whole or partitioning the system into separate components. The turbo-encoding system can increase the speed of information transfer without requiring an increase of a transmitter power, or can be used to reduce the required power in the transmission with given rate. An important advantage of the system is an independence of the decoding complexity from the length of the information block that allows the reduction of the possibility of the decoding error by increasing its length

Author Biographies

Леонід Францович Політанський, Chernivtsi National University named after Yuriy Fedkovych str. Kotsyubinskogo, 2, Chernivtsi, 58012

Professor

Department of Radio Engineering and Information Security

Олег Миронович Еліяшів, Chernivtsi National University named after Yuriy Fedkovych str. Kotsyubinskogo, 2, Chernivtsi, 58012

Graduate student

Department of Radio Engineering and Information Security

Назарій Григорович Гладун, Chernivtsi National University named after Yuriy Fedkovych str. Kotsyubinskogo, 2, Chernivtsi, 58012

Student

Department of Radio Engineering and Information Security

References

  1. Соловьев, В.В. Проектирование цифровых систем на основе программируемых логических интегральных схем [Текст] / Соловьев В.В. М.: Горячая линия–Телеком, 2013, 636 с.
  2. Dolinar, S. Weight Distributions for Turbo Codes Using Random and Nonrandom Permutations [Текст] / Dolinar S., Divsalar D., TDA Progress Report 42-122, Je Propulsion Laboratory, August 15, 1995, pp. 56-65.
  3. Скляр, Б. Цифровая связь. Теоретические основы и практическое применение Изд. 2-е, испр. : Пер. c англ. [Текст] / Скляр Б. – М. : Издательский дом Вильямс, 2003, 1104 с.
  4. Divsalar, D. On the Design of Turbo Codes [Текст] / Divsalar D., Pollara F. TDA Progress Report 42-123, Jet Propulsion Laboratory, November 15, 1995, pp. 99-121.
  5. Berrou C. Near Shannon Limit Error-Correcting Coding and Decoding: Turbo Codes [Текст] / Berrou C., Glavieux A., Thitimajshima P. IEEE Proceedings of the Int. Conf. on Communications, May 1993 (ICC ’93), pp. 1064-1070.
  6. Іванюк, П.В. Дослідження хаотичних процесів, генерованих системою Лю [Текст] / П.В. Іванюк, Л.Ф. Політанський, Р.Л. Політанський // Восточно-Европейский журнал передовых технологий. – 2011. – №4/9(52). – С. 11 – 15.

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Published

2012-12-25

How to Cite

Політанський, Л. Ф., Еліяшів, О. М., & Гладун, Н. Г. (2012). Research of turbo coding system on the basis of recursive systematic encoders. Eastern-European Journal of Enterprise Technologies, 6(11(60), 4–7. https://doi.org/10.15587/1729-4061.2012.5991

Issue

Vol. 6 No. 11(60) (2012): Radio engineering information tools

Section

Radio engineering information tools

License

Copyright (c) 2014 Леонід Францович Політанський, Олег Миронович Еліяшів, Назарій Григорович Гладун

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