Distributed Network Configuration for Wavelet-Based Compression in Sensor Networks

Tarrío Alonso, Paula and Valenzis, Giuseppe and Shen, Godwin and Ortega, Antonio (2009). Distributed Network Configuration for Wavelet-Based Compression in Sensor Networks. In: "3rd International Conference on Geosensor Networks", 13/07/2009 - 14/07/2009, Oxford, Reino Unido. ISBN 978-3-642-02903-5.

Description

Title: Distributed Network Configuration for Wavelet-Based Compression in Sensor Networks
Author/s:
  • Tarrío Alonso, Paula
  • Valenzis, Giuseppe
  • Shen, Godwin
  • Ortega, Antonio
Item Type: Presentation at Congress or Conference (Article)
Event Title: 3rd International Conference on Geosensor Networks
Event Dates: 13/07/2009 - 14/07/2009
Event Location: Oxford, Reino Unido
Title of Book: Proceedings of 3rd International Conference on Geosensor Networks
Date: 2009
ISBN: 978-3-642-02903-5
Volume: 5659
Subjects:
Freetext Keywords: In-network compression - wavelet lifting - distributed routing algorithms - collection tree protocol - shortest path tree
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Señales, Sistemas y Radiocomunicaciones
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

En-route data compression is fundamental to reduce the power consumed for data gathering in sensor networks. Typical in-network compression schemes involve the distributed computation of some decorrelating transform on the data; the structure along which the transform is computed influences both coding performance and transmission cost of the computed coefficients, and has been widely explored in the literature. However, few works have studied this interaction in the practical case when the routing configuration of the network is also built in a distributed manner. In this paper we aim at expanding this understanding by specifically considering the impact of distributed routing tree initialization algorithms on coding and transmission costs, when a tree-based wavelet lifting transform is adopted. We propose a simple modification to the collection tree protocol (CTP) which can be tuned to account for a vast range of spatial correlations. In terms of costs and coding efficiency, our methods do not improve the performance of more sophisticated routing trees such as the shortest path tree, but they entail an easier manageability in case of node reconfigurations and update

More information

Item ID: 5600
DC Identifier: http://oa.upm.es/5600/
OAI Identifier: oai:oa.upm.es:5600
Official URL: http://www.springerlink.com/content/x476787804206024/
Deposited by: Memoria Investigacion
Deposited on: 11 Jan 2011 10:08
Last Modified: 20 Apr 2016 14:22
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