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A Novel Rapid-flooding Approach with Real-time Delay Compensation for Wireless Sensor Network Time Synchronization
- Source :
- IEEE TRANSACTIONS ON CYBERNETICS, VOL. 52, NO. 3, MARCH 2022
- Publication Year :
- 2022
-
Abstract
- One-way-broadcast based flooding time synchronization algorithms are commonly used in wireless sensor networks (WSNs). However, the packet delay and clock drift pose challenges to accuracy, as they entail serious by-hop error accumulation problems in the WSNs. To overcome it, a rapid flooding multi-broadcast time synchronization with real-time delay compensation (RDC-RMTS) is proposed in this paper. By using a rapid-flooding protocol, flooding latency of the referenced time information is significantly reduced in the RDC-RMTS. In addition, a new joint clock skew-offset maximum likelihood estimation is developed to obtain the accurate clock parameter estimations, and the real-time packet delay estimation. Moreover, an innovative implementation of the RDC-RMTS is designed with an adaptive clock offset estimation. The experimental results indicate that, the RDC-RMTS can easily reduce the variable delay and significantly slow the growth of by-hop error accumulation. Thus, the proposed RDC-RMTS can achieve accurate time synchronization in large-scale complex WSNs.<br />Comment: 14 pages, 11 figures
- Subjects :
- Computer Science - Networking and Internet Architecture
Subjects
Details
- Database :
- arXiv
- Journal :
- IEEE TRANSACTIONS ON CYBERNETICS, VOL. 52, NO. 3, MARCH 2022
- Publication Type :
- Report
- Accession number :
- edsarx.2207.11402
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1109/TCYB.2020.2987758