File(s) not publicly available
An optimal distribution of data reduction in sensor networks with hierarchical caching
conference contribution
posted on 2007-01-01, 00:00 authored by Y Li, M V Ramakrishna, Seng LokeSeng LokeReducing data transmission to conserve energy and provide cost-efficient query answers in sensor networks is the topic of this paper. We consider a sensor network logically organized into a tree structure. The sensors at the lowest level cache raw data, and data is stored with greater degree of compression as we move up the tree. Thus a query answered using data at a lower level has less error but requires more energy. We have proposed a model for accounting the cost of resources consumed and the error in the result obtained. We have formulated an optimization problem for the trade-off between the error cost and the resource cost of answering queries. Its solution enables us to determine the optimal distribution of data reduction at each level. We have presented numerical solutions for some sample data, illustrating the practicality of the scheme. © IFIP International Federation for Information Processing 2007.
History
Volume
4808 LNCSPagination
598 - 609Publisher DOI
ISSN
0302-9743eISSN
1611-3349ISBN-13
9783540770916Publication classification
E1.1 Full written paper - refereedTitle of proceedings
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC