• DocumentCode
    1526959
  • Title

    Information Theoretical and Algorithmic Approaches to Quantized Compressive Sensing

  • Author

    Dai, Wei ; Milenkovic, Olgica

  • Author_Institution
    Dept. of Electr. & Electron. Eng., Imperial Coll. London, London, UK
  • Volume
    59
  • Issue
    7
  • fYear
    2011
  • fDate
    7/1/2011 12:00:00 AM
  • Firstpage
    1857
  • Lastpage
    1866
  • Abstract
    We study the average distortion introduced by scalar, vector, and entropy coded quantization of compressive sensing (CS) measurements. The asymptotic behavior of the underlying quantization schemes is either quantified exactly or characterized via bounds. We adapt two benchmark CS reconstruction algorithms to accommodate quantization errors, and empirically demonstrate that these methods significantly reduce the reconstruction distortion when compared to standard CS techniques.
  • Keywords
    data compression; distortion; signal reconstruction; vector quantisation; CS reconstruction algorithms; entropy coded quantization; quantized compressive sensing; reconstruction distortion; scalar coded quantization; vector quantization; Distortion; Distortion measurement; Encoding; Quantization; Rate distortion theory; Reconstruction algorithms; Upper bound; Compressive sensing; distortion rate function; quantization; subspace pursuit;
  • fLanguage
    English
  • Journal_Title
    Communications, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0090-6778
  • Type

    jour

  • DOI
    10.1109/TCOMM.2011.051711.100204
  • Filename
    5773638