Low-power clock synchronization using electromagnetic energy radiating from AC power lines

@inproceedings{Rowe2009LowpowerCS,
  title={Low-power clock synchronization using electromagnetic energy radiating from AC power lines},
  author={Anthony Rowe and Vikram Gupta and Ragunathan Rajkumar},
  booktitle={SenSys},
  year={2009}
}
Clock synchronization is highly desirable in many sensor networking applications. It enables event ordering, coordinated actuation, energy-efficient communication and duty cycling. This paper presents a novel low-power hardware module for achieving global clock synchronization by tuning to the magnetic field radiating from existing AC power lines. This signal can be used as a global clock source for battery-operated sensor nodes to eliminate drift between nodes over time even when they are not… CONTINUE READING
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