• DocumentCode
    2684399
  • Title

    Compressed sensing of Gauss-Markov random field with wireless sensor networks

  • Author

    Oka, Anand ; Lampe, Lutz

  • Author_Institution
    Dept. of Electr. & Comput. Eng., Univ. of British Columbia, Vancouver, BC
  • fYear
    2008
  • fDate
    21-23 July 2008
  • Firstpage
    257
  • Lastpage
    260
  • Abstract
    We propose a scalable and energy efficient method for reconstructing a dasiasparsepsila Gauss-Markov random field that is observed by an array of sensors and described over wireless channels to a fusion center. The encoder is universal, i.e. invariant to the statistical model of the source and the channel, and is based on compressed sensing. The reconstruction algorithms exploit the a-priori statistical information about the field and the channel at the fusion center to yield a performance comparable to information theoretic bounds. Furthermore, by putting stringent constraints on the sensing matrix we avoid (or even eliminate) inter-sensor communication while suffering negligible degradation in performance.
  • Keywords
    Gaussian processes; Markov processes; channel coding; matrix algebra; random processes; sensor arrays; sensor fusion; statistical analysis; wireless sensor networks; Gauss-Markov random fields; a-priori statistical information; compressed sensing; fusion center; intersensor communication; matrix sensing; reconstruction algorithms; sensors array; statistical model; wireless sensor networks; Compressed sensing; Degradation; Energy efficiency; Gaussian channels; Gaussian processes; Reconstruction algorithms; Sensor arrays; Sensor fusion; Sensor phenomena and characterization; Wireless sensor networks;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Sensor Array and Multichannel Signal Processing Workshop, 2008. SAM 2008. 5th IEEE
  • Conference_Location
    Darmstadt
  • Print_ISBN
    978-1-4244-2240-1
  • Electronic_ISBN
    978-1-4244-2241-8
  • Type

    conf

  • DOI
    10.1109/SAM.2008.4606867
  • Filename
    4606867