Optimization of turbo code encoding/decoding processes for development of 5G mobile communication systems





turbo code, uncertainty, optimization, simulation


The issues of increasing the operation efficiency of mobile communication systems of next generations using adaptive noiseless coding are considered. The optimization method of the turbo code encoder and decoder operation is proposed using an adaptive choice of the state diagrams size with a new parameter of decoding uncertainty value. The method implementation allows us to provide the specified values of information reliability without reducing the paths throughput of systems and networks of 5G generation.


C. Berrou, A. Glavieux, P. Thitimajshima, “Near Shannon limit error-correcting coding and decoding: Turbo-codes. 1,” in Proceedings of ICC ’93 - IEEE International Conference on Communications, 1993, vol. 2, pp. 1064–1070, doi: https://doi.org/10.1109/ICC.1993.397441.

E. Dahlman, S. Parkvall, J. Sköld, 4G LTE/LTE-Advanced for Mobile Broadband. Oxford: Academic Press, 2011, doi: https://doi.org/10.1016/C2010-0-66332-2.

A. A. Murach, “Elliptic pseudodifferential operators in the improved scale of spaces on a closed manifold,” Ukr. Math. J., vol. 59, no. 6, pp. 874–893, 2007, doi: https://doi.org/10.1007/s11253-007-0056-6.

V. A. Mikhailets, A. A. Murach, “Elliptic boundary-value problem in a two-sided improved scale of spaces,” Ukr. Math. J., vol. 60, no. 4, pp. 574–597, 2008, doi: https://doi.org/10.1007/s11253-008-0074-z.

K. V. Koutsouvelis, C. E. Dimakis, “A low complexity algorithm for generating turbo code s-random interleavers,” Wirel. Pers. Commun., vol. 46, no. 3, pp. 365–370, 2008, doi: https://doi.org/10.1007/s11277-007-9439-0.

H. R. Sadjadpour, N. J. A. Sloane, M. Salehi, G. Nebe, “Interleaver design for turbo codes,” IEEE J. Sel. Areas Commun., vol. 19, no. 5, pp. 831–837, 2001, doi: https://doi.org/10.1109/49.924867.

S. Dolinar, D. Divsalar, “Weight distributions for turbo codes using random and nonrandom permutations,” 1995. uri: https://ipnpr.jpl.nasa.gov/progress_report/42-122/122B.pdf.

S. V. Zaitsev, V. V. Kazymyr, “Method for adaptive decoding in case of information transmission in condition of influence of deliberate noise,” Radioelectron. Commun. Syst., vol. 58, no. 5, pp. 212–219, 2015, doi: https://doi.org/10.3103/S0735272715050039.

Y. Jiang, H. Kim, H. Asnani, S. Kannan, S. Oh, P. Viswanath, “Turbo Autoencoder: Deep learning based channel codes for point to point communication channels,” in Advances in Neural Information Processing Systems 32 (NeurIPS 2019), 2019, pp. 2754–2764.

S. V. Zaitsev, V. V. Kazymyr, V. M. Vasilenko, A. V. Yarilovets, “Adaptive selection of parameters of S-random interleaver in wireless data transmission systems with turbo coding,” Radioelectron. Commun. Syst., vol. 61, no. 1, pp. 13–21, 2018, doi: https://doi.org/10.3103/S0735272718010028.

S. Kojima, K. Maruta, C.-J. Ahn, “Adaptive modulation and coding using neural network based SNR estimation,” IEEE Access, vol. 7, pp. 183545–183553, 2019, doi: https://doi.org/10.1109/ACCESS.2019.2946973.

R. Mahalakshmi, P. V. Bhuvaneshwari, C. Tharini, V. Bhaskar, “A novel algorithm to design rate-adaptive irregular LDPC codes,” Wirel. Pers. Commun., vol. 113, no. 1, pp. 453–468, 2020, doi: https://doi.org/10.1007/s11277-020-07223-3.

B. Zhang, L. B. Milstein, P. Cosman, “Energy optimization for hybrid ARQ with turbo coding: rate adaptation and allocation,” IEEE Trans. Veh. Technol., vol. 69, no. 10, pp. 11338–11352, 2020, doi: https://doi.org/10.1109/TVT.2020.3009681.

C. Berrou, Ed., Codes and Turbo Codes. Paris: Springer Paris, 2010, doi: https://doi.org/10.1007/978-2-8178-0039-4.

B. Vucetic, J. Yuan, Turbo Codes. Boston, MA: Springer US, 2000, doi: https://doi.org/10.1007/978-1-4615-4469-2.

Block diagram of modified TC encoder





Research Articles