Programming wireless sensor networks with the TeenyLime middleware

  • Authors:
  • Paolo Costa;Luca Mottola;Amy L. Murphy;Gian Pietro Picco

  • Affiliations:
  • Vrije Universiteit, Amsterdam, The Netherlands;Politecnico di Milano, Italy;ITC-IRST, Povo, Italy, & U. of Lugano, Switzerland;University of Trento, Italy

  • Venue:
  • Proceedings of the ACM/IFIP/USENIX 2007 International Conference on Middleware
  • Year:
  • 2007

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Abstract

Wireless sensor networks (WSNs) are evolving to support sense-and-react applications, where actuators are physically interspersed with the sensors that trigger them. This solution maximizes localized interactions, improving resource utilization and reducing latency w.r.t. solutions with a centralized sink. Nevertheless, application development becomes more complex: the control logic must be embedded in the network, and coordination among multiple tasks is needed to achieve the application goals. This paper presents TeenyLime, a WSN middleware designed to address the above challenges. TeenyLime provides programmers with the high-level abstraction of a tuple space, enabling data sharing among neighboring devices. These and other WSN-specific constructs simplify the development of a wide range of applications, including sense-and-react ones. TeenyLime yields simpler, cleaner, and more reusable implementations, at the cost of only a very limited decrease in performance. We support these claims through a source-level, quantitative comparison between implementations based on TeenyLime and on mainstream approaches, and by analyzing measures of processing overhead and power consumption obtained through cycle-accurate emulation.