Considerations for Synchronization in Body Area Networks for Human Activity Monitoring

  • Johan Plomp
  • Mikko Heiskanen
  • Mika Hillukkala
  • Tapio Heikkilä
  • Jari Rehu
  • Niek Lambert
  • Victor van Acht
  • Tom Ahola
Article

Abstract

In this paper, we highlight considerations for synchronization issues in body area networks. Requirements for the synchronization accuracy in body area networks depend on the application at hand. Synchronization may be needed for power management, sample ordering, calculation of stimulus responses and for sensor fusion. This paper provides a theoretical exercise to help understand the accuracy required for typical human motion sensing. It gives an overview of various synchronisation strategies used and implemented in prototype systems. Lessons learnt from practical implementations using Bluetooth, an IEEE 802.15.4 proprietary network and Nanonet are presented to illustrate the principles involved. The discussion provides some considerations and the requirements for typical WBAN applications.

Keywords

Wireless body area networks Wireless networks Motion sensing Activity sensing Synchronization 

Notes

Acknowledgments

This work was part of the NUADU project resorting under the Eureka/ITEA programme and supported by the funding agencies in the involved countries (Finland, The Netherlands, France and Spain). The Nanonet solution and the IEEE802.15.4 system used in rehabilitation were developed in collaboration with other projects.

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Johan Plomp
    • 1
  • Mikko Heiskanen
    • 1
  • Mika Hillukkala
    • 1
  • Tapio Heikkilä
    • 1
  • Jari Rehu
    • 1
  • Niek Lambert
    • 2
  • Victor van Acht
    • 2
  • Tom Ahola
    • 3
  1. 1.VTT - Technical Research Centre of FinlandEspooFinland
  2. 2.Philips ResearchEindhovenNetherlands
  3. 3.Nokia Research CentreHelsinkiFinland

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