7th International Conference on Body Area Networks

Research Article

Adaptive Time Synchronization Protocol for BANs

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  • @INPROCEEDINGS{10.4108/icst.bodynets.2012.249971,
        author={Paulo Vilares and Pedro Brand\"{a}o},
        title={Adaptive Time Synchronization Protocol for BANs},
        proceedings={7th International Conference on Body Area Networks},
        keywords={time synchronization body area network},
  • Paulo Vilares
    Pedro Brandão
    Year: 2012
    Adaptive Time Synchronization Protocol for BANs
    DOI: 10.4108/icst.bodynets.2012.249971
Paulo Vilares1,*, Pedro Brandão1
  • 1: Instituto de Telecomunicações, Faculdade Ciências, Universidade do Porto
*Contact email: up090316161@alunos.dcc.fc.up.pt


We propose a time synchronization protocol specific for Body Area Networks (BAN). The diversity of hardware on which sensors will be deployed, the need for energy efficiency and the degree of accuracy required by different applications, are constraints that are not always addressed in current synchronization schemes. Using a broadcast message scheme we introduce the ability for the node to decide when to resynchronize, based on a maximum error and the clock drift, which can differ for each type of sensor. The node can therefore, dynamically adapt its synchronization period thus saving energy while keeping accurate. The protocol is designed to support the IEEE 802.15 TG6 guidelines.