Chapter

Wireless Sensor Networks

Volume 4373 of the series Lecture Notes in Computer Science pp 277-292

Model-Based Design Exploration of Wireless Sensor Node Lifetimes

  • Deokwoo JungAffiliated withEmbedded Networks and Applications Lab, ENALAB, Yale Univerisity, New Haven, CT 06520
  • , Thiago TeixeiraAffiliated withEmbedded Networks and Applications Lab, ENALAB, Yale Univerisity, New Haven, CT 06520
  • , Andrew Barton-SweeneyAffiliated withEmbedded Networks and Applications Lab, ENALAB, Yale Univerisity, New Haven, CT 06520
  • , Andreas SavvidesAffiliated withEmbedded Networks and Applications Lab, ENALAB, Yale Univerisity, New Haven, CT 06520

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Abstract

This paper presents two lifetime models that describe two of the most common modes of operation of sensor nodes today, trigger-driven and duty-cycle driven. The models use a set of hardware parameters such as power consumption per task, state transition overheads, and communication cost to compute a node’s average lifetime for a given event arrival rate. Through comparison of the two models and a case study from a real camera sensor node design we show how the models can be applied to drive architectural decisions, compute energy budgets and duty-cycles, and to preform side-by-side comparison of different platforms.