A Novel Low-Power Time Synchronization Algorithm based on a Fractional Approach for Wireless Body Area Networks

Giuseppe Coviello, Gianfranco Avitabile, Antonello Florio, Claudio Talarico, Janet Roveda

Research output: Contribution to journalArticlepeer-review

Abstract

Time synchronization is a topic of interest for any distributed system and it is of particular relevance in Wireless Sensor Networks (WSN), especially when it is necessary to keep a strong level of time synchronization among the data coming from different nodes, which are then employed to perform a posteriori data-fusion and data-merging operations. A special case of WSN is constituted by Wireless Body Area Networks (WBAN). The paper introduces the Fractional Low-power time Synchronization Algorithm (FLSA), a lightweight and ultra-low-power time synchronization algorithm conceived for Wireless Body Area Networks. The core of the proposed approach is the fractional-time concept, borrowed from Phase-Locked Loops theory, that allows achieving fine timer corrections. Moreover, an heuristic routine managing the on/off switching of the radio section of the device allows to dramatically decrease the power consumption. The mathematical discussion, along with a set of experiments is presented, proving the benefits associated with the proposed algorithm.

Original languageEnglish (US)
JournalIEEE Access
DOIs
StateAccepted/In press - 2021

Keywords

  • Body area networks
  • Clocks
  • Protocols
  • Sensors
  • Synchronization
  • Time Dissemination
  • Time Synchronization
  • Wireless application protocol
  • Wireless Body Area Networks
  • Wireless communication
  • Wireless Sensor Networks
  • Wireless sensor networks

ASJC Scopus subject areas

  • Computer Science(all)
  • Materials Science(all)
  • Engineering(all)

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