Paper Info
Title
Adaptive Proportional-Integral Clock Synchronization in Wireless Sensor Networks.
Abstract
In this paper, we present a novel control-theoretic time synchronization algorithm, named PISync for synchronizing sensor nodes in wireless sensor networks (WSNs). The PISync algorithm is based on an adaptive proportional–integral controller. It applies a proportional feedback (P) and an integral feedback (I) on the local measured synchronization errors to compensate the differences between the clock offsets and the clock speeds. We present practical flooding-based and fully distributed protocol implementations of the PISync algorithm, and we provide theoretical analysis to highlight the benefits of this approach in terms of improved steady-state error and scalability as compared with existing synchronization algorithms. We show through theoretical analysis, real-world experiments, and simulations that PISync protocols have better or comparable performance over existing protocols in the WSN literature in terms of rate of convergence and steady-state error with the additional advantages of requiring minimal CPU overhead, memory allocation, and code footprint independent of network size and topology, and of employing blind communication.
Year
Venue
Field
2018
IEEE Trans. Contr. Sys. Techn.
Key distribution in wireless sensor networks,Synchronization,Algorithm design,Computer science,Data synchronization,Real-time computing,Clock synchronization,Wireless sensor network,Scalability,Self-clocking signal
DocType
Volume
Issue
Journal
26
2
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Kasim Sinan Yildirim1164.79
Ruggero Carli289469.17
Luca Schenato300.68