Serially Concatenated Low-density Parity Check Codes as Compatible Pairs

  • Authors

    • Amjad Ali Jassim
    • Wael A. Hadi.
    • Muhanned Ismael Ibrahim Al-Firas
    2018-10-07
    https://doi.org/10.14419/ijet.v7i4.15.23013
  • AWGN, LDPC, 16-QAM, 64-QAM, QPSK, serially concatenated code

  • Abstract

    Low-density parity checks (LDPC) codes are considered good performance error correction codes. However, decoder complexity increases with increasing code length. In this study, we introduce short-length serially concatenated LDPC codes. The proposed technique uses pairs of compatible LDPC codes that act as outer and inner serially concatenated codes. In this code pair, the inner code takes input that is the same length as the outer LDPC encoder output. This study examined two cases of LDPC codes as compatible pairs with low numbers of iterations and compared bit error rate (BER) performance to a standalone LDPC code with an additive white Gaussian noise channel. We also considered the quadrature phase shift keying QPSK, 16-quadrature amplitude modulation (QAM), and 64-QAM system modulation schemes. Simulation results demonstrate that the proposed system has good BER performance compared to a standalone LDPC code, the results summarized in table and performance curves.

     

     


     

  • References

    1. [1] C. Moreira, P. G. Farrell, “Essential of error control codingâ€, West Sussex, England: John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England Telephone (+44) 1243 779777 Email (for orders and customer service enquiries): cs-books@wiley.co.uk Visit our Home Page on www.wiley.com, 2006

      [2] L. M. Tanner, “A recursive approach to low complexity codes,†IEEE Trans. Inf. Theory, vol. 27, no. 5, pp. 533–547, Sept. 1981.

      [3] H. Tang, J. Xu, Y. Kou, S. Lin, and K. Abdel-Ghaffar, “On algebraic construction of Gallager and circulant low-density parity-check codes,†IEEE Trans. Inf. Theory, vol. 50, no. 6, pp. 1269–1279, Jun. 2004.

      [4] [M. Franceschini, G. Ferrari, R. Raheli, and A, Curtoni, “Serial concatenated of LDPC codes and diffrential modulationsâ€, IEEE J. Sel. Area. Comm., vol. 23. no. 9, pp.1758-1768, Sept. 2005.

      [5] Z. Shi, C. Fu, and S. Li, “Serial concatenation and joint iterative decoding of LDPC codes and Reed-Solomon codesâ€, open research fund of national mobile communication research laboratory, southeast university. 2005.

      [6] A. G. Panagos, “Simulated performance of serial concatenated LDPC codesâ€, Journal International Telemetering Conference Proceedings. October 2003.

      [7] Z. Wang, M. Zhang, “A serial concatenated scheme for LDPC code to achieve better error correction performanceâ€, IEEE 978-1-4577-3, 21-23 April 2012.

      [8] Altaf, S., Shah, A., Imtiaz, N., Shah, A.S., Ahmed, S.F., “Visualization representing benefits of pre-requirement specification traceability†International Journal of Engineering and Technology(UAE) 7 (2.5), 44-52

  • Downloads

  • How to Cite

    Ali Jassim, A., A. Hadi., W., & Ismael Ibrahim Al-Firas, M. (2018). Serially Concatenated Low-density Parity Check Codes as Compatible Pairs. International Journal of Engineering & Technology, 7(4.15), 301-303. https://doi.org/10.14419/ijet.v7i4.15.23013

    Received date: 2018-12-03

    Accepted date: 2018-12-03

    Published date: 2018-10-07