Using a Link Metric to Improve Communication Mechanisms and Real-Time Properties in an Adaptive Middleware for Heterogeneous Sensor Networks

  • Edison Pignaton de Freitas
  • Tales Heimfarth
  • Marco Aurélio Wehrmeister
  • Flávio Rech Wagner
  • Armando Morado Ferreia
  • Carlos Eduardo Pereira
  • Tony Larsson
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5576)

Abstract

This paper presents middleware mechanisms to support real-time services in heterogeneous sensor networks, focusing on the evaluation of link metrics. Heterogeneous sensor networks require specific QoS (quality of service) guarantees in order to allow the coordination and cooperation among the different nodes that compose the system. In order to improve QoS, one of the first steps is to enhance the usage of the communication links, aiming at a more reliable and efficient message exchange. In this paper, key middleware features to address this concern are presented, in which a focus is given on the use of a link metric that, as part of a protocol, is used to optimize the message forwarding in relay communications across the network. Additionally, preliminary results are also presented.

Keywords

Heterogeneous Wireless Sensor Networks QoS enhancement Middleware support mechanisms Link metric 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Edison Pignaton de Freitas
    • 1
    • 2
  • Tales Heimfarth
    • 2
  • Marco Aurélio Wehrmeister
    • 2
  • Flávio Rech Wagner
    • 2
  • Armando Morado Ferreia
    • 3
  • Carlos Eduardo Pereira
    • 2
    • 4
  • Tony Larsson
    • 1
  1. 1.School of Information Science, Computer and Electrical EngineeringHalmstad UniversityHalmstadSweden
  2. 2.Institute of InformaticsFederal University of Rio Grande do SulBrazil
  3. 3.Military Institute of EngineeringBrazil
  4. 4.Electrical Engineering DepartmentFederal University of Rio Grande do SulBrazil

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