Automated construction of fast and accurate system-level models for wireless sensor networks

Lan S. Bai, Robert P. Dick, Pai H. Chou, Peter A Dinda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

Rapidly and accurately estimating the impact of design decisions on performance metrics is critical to both the manual and automated design of wireless sensor networks. Estimating system-level performance metrics such as lifetime, data loss rate, and network connectivity is particularly challenging because they depend on many factors, including network design and structure, hardware characteristics, communication protocols, and node reliability. This paper describes a new method for automatically building efficient and accurate predictive models for a wide range of system-level performance metrics. These models can be used to eliminate or reduce the need for simulation during design space exploration. We evaluate our method by building a model for the lifetime of networks containing up to 120 nodes, considering both fault processes and battery energy depletion. With our adaptive sampling technique, only 0.27% of the potential solutions are evaluated via simulation. Notably, one such automatically produced model outperforms the most advanced manually designed analytical model, reducing error by 13% while maintaining very low model evaluation overhead. We also propose a new, more general definition of system lifetime that accurately captures application requirements and decouples the specification of requirements from implementation decisions.

Original languageEnglish (US)
Title of host publicationProceedings - Design, Automation and Test in Europe Conference and Exhibition, DATE 2011
Pages1083-1088
Number of pages6
StatePublished - May 31 2011
Event14th Design, Automation and Test in Europe Conference and Exhibition, DATE 2011 - Grenoble, France
Duration: Mar 14 2011Mar 18 2011

Publication series

NameProceedings -Design, Automation and Test in Europe, DATE
ISSN (Print)1530-1591

Other

Other14th Design, Automation and Test in Europe Conference and Exhibition, DATE 2011
CountryFrance
CityGrenoble
Period3/14/113/18/11

ASJC Scopus subject areas

  • Engineering(all)

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