A Channel Optimized Vector Quantizer Based on Equidistortion Principal and Wavelet Transform

  • Wang Yue
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 236)


The paper presents a new algorithm to design channel optimized vector quantizer(COVQ) based on the equidistortion principal and wavelet transform. The algorithm creates new codebook vector which is in the near place of the sub region with the biggest sub-distortion and then replaces the codebook vector with the smallest subdistortion with this new codebook vector, therefore to equilibrate sub-distortion of all sub regions. The algorithm achieves a significant improvement of COVQ performance under noisy channel, as confirmed by experimental results.


COVQ wavelet transform noisy channel equidistortion principal 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Wang Yue
    • 1
  1. 1.Institute of Electronic InformationZhejiang Gongshang UniversityHangzhouP.R. China

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