• DocumentCode
    2055751
  • Title

    On the utilization of residual source redundancy for iterative joint source-channel decoding of variable-length codes

  • Author

    Kliewer, Jörg ; Thobaben, Ragnar

  • Author_Institution
    Inst. for Circuits & Syst. Theor., Kiel Univ., Germany
  • fYear
    2002
  • fDate
    2002
  • Firstpage
    199
  • Abstract
    We present a novel symbol-based a posteriori probability (APP) decoder for packetized variable-length encoded source indices transmitted over wireless channels, which exploits residual index correlations after source encoding for error correction. By additionally protecting the variable-length encoded bitstream with channel codes, an iterative decoding scheme can be obtained where the proposed APP source decoder serves as constituent decoder.
  • Keywords
    combined source-channel coding; error correction codes; iterative decoding; probability; redundancy; variable length codes; APP source decoder; channel codes; constituent decoder; error correction; iterative decoding; joint source-channel decoding; residual index correlations; residual source redundancy; source encoding; symbol-based a posteriori probability decoder; variable-length codes; wireless channels; Circuits and systems; Convolutional codes; Delay; Iterative decoding; Markov processes; Probability distribution; Protection; Quantization; Rayleigh channels; Redundancy;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on
  • Print_ISBN
    0-7803-7501-7
  • Type

    conf

  • DOI
    10.1109/ISIT.2002.1023471
  • Filename
    1023471