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Distributed Wavelet Transform for Irregular Sensor Network Grids

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Title: Distributed Wavelet Transform for Irregular Sensor Network Grids
Author: Wagner, Raymond; Choi, Hyeokho; Baraniuk, Richard G.; Delouille, Veronique
Type: Conference Paper
Keywords: distributed wavelet transform; irregular grid wavelet analysis; sensor networks
Citation: R. Wagner, H. Choi, R. G. Baraniuk and V. Delouille,"Distributed Wavelet Transform for Irregular Sensor Network Grids," in IEEE Workshop on Statistical Signal Processing (SSP),, pp. 1196-1201.
Abstract: Wavelet-based distributed data processing holds much promise for sensor networks; however, irregular sensor node placement precludes the direct application of standard wavelet techniques. In this paper, we develop a new distributed wavelet transform based on lifting that takes into account irregular sampling and provides a piecewise-planar multiresolution representation of the sensed data. We develop the transform theory; outline how to implement it in a multi-hop, wireless sensor network; and illustrate with several simulations. The new transform performs on par with conventional wavelet methods in a head-to-head comparison on a regular grid of sensor nodes.
Date Published: 2005-07-01

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  • ECE Publications [1047 items]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students
  • DSP Publications [508 items]
    Publications by Rice Faculty and graduate students in digital signal processing.