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Application-Level Operations Latency Control in Networked WSAN

  • Pedro Furtado
  • Jose Cecilio
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7363)

Abstract

The utilization of wireless sensor networks in industrial environments poses issues related to performance control. We consider a networked system composed of multiple wireless sensor networks (WSN) that are plugged into a cabled Networked Control System (NCS) made of middleware computers and control stations. The challenge that we faced was to provide predictable end-to-end latency expectations in those settings, as opposed to the problem of predicting latencies within a WSN only. We consider a deployment with multiple small-sized schedule-based WSN sub-networks and the NCS. The approach accounts for details such as de-synch issues that are to be expected in the heterogeneous context. Experimental results show actual latencies and confront them with predictions in a testbed deployment.

Keywords

distributed middleware sensor networks wireless sensor networks 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Pedro Furtado
    • 1
  • Jose Cecilio
    • 1
  1. 1.Universidade de CoimbraCoimbraPortugal

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