Achieving Long-Term Surveillance in VigilNet

Qing Cao, Liqian Luo, Gang Zhou, Radu Stoleru, Tarek Abdelzaher, Ting Yan, Lin Gu, Pascal Vicaire, Tian He, John A. Stankovic

Research output: Book/Report/Conference proceedingOther report


Energy efficiency is a fundamental issue for outdoor sensor network systems. This paper presents the design and implementation of multi-dimensional power management strategies in VigilNet, a major recent effort to support longterm surveillance using power-constrained sensor devices. We integrate a novel tripwire service with an effective sentry and duty cycle scheduling in order to increase the system lifetime, collaboratively. Through extensive system implementation, we demonstrate the feasibility to achieve high surveillance performance and energy efficiency, simultaneously. We invest a fair amount of effort to evaluate our architecture with a network of 200 XSM motes in an outdoor environment, an extensive simulation with 10,000 nodes, as well as an analytical probabilistic model. These evaluations demonstrate the effectiveness of our integrated approach and identify many interesting lessons and guidelines, useful for the future development of energy-efficient sensor systems.
Original languageEnglish (US)
PublisherDefense Technical Information Center
Number of pages13
StatePublished - Jan 2006


  • Integrated systems
  • Combat surveillance
  • Energy consumption


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