Accession Number:

ADA495267

Title:

Distributed Wavelet Transform for Irregular Sensor Network Grids

Descriptive Note:

Corporate Author:

RICE UNIV HOUSTON TX

Report Date:

2005-01-01

Pagination or Media Count:

7.0

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.

Subject Categories:

  • Numerical Mathematics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE