Adaptive BCH coding performance analysis

  • Authors:

  • Lamia Chaari;Mohamed Fourati;Nouri Masmoudi;Lotfi Kamoun

  • Affiliations:

  • Laboratoire d'Electronique et des Technologies de L'Information, Ecole National d'Ingénieur de Sfax, Sfax, Tunisie;Laboratoire d'Electronique et des Technologies de L'Information, Ecole National d'Ingénieur de Sfax, Sfax, Tunisie;Laboratoire d'Electronique et des Technologies de L'Information, Ecole National d'Ingénieur de Sfax, Sfax, Tunisie;Laboratoire d'Electronique et des Technologies de L'Information, Ecole National d'Ingénieur de Sfax, Sfax, Tunisie

  • Venue:
  • MUSP'08 Proceedings of the 8th WSEAS International Conference on Multimedia systems and signal processing
  • Year:
  • 2008

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Abstract

BCH (Bose, Chaudhuri, Hocquenghem) codes are becoming more frequently used due to the availability of VLSI components. BCH codes have a powerful random and burst correcting ability. BCH codes also leave the data in its original form which allows video decoders to be specified with "optional" error correction. The BCH code can be adapted towards the burst error correcting capabilities and this will be shown in the contribution. This paper investigates the effects of noise-induced transmission errors on the performance of BCH coding methods for different errors correction capability. First, the relations among the bit error rate, signal-to-noise ratio (SNR), and code lengths are analyzed. Further, the transmission performance of BCH codes association with different modem schemes are analyzed. Also QCIF image transmission quality over BCH codes for different errors capability are simulated, discussed and compared. The results listed in this article denote the effects of the using BCH codes in a selected method. Based on this analysis an adaptive BCH scheme is proposed to pick the correcting capabilities that offers the best reconstructed image quality for each average SNR.