Delay Compensated One-way Time Synchronization in Distributed Wireless Sensor Networks
IEEE Wireless Communications Letters, 2022
Recommended citation: Z. Fang and Y. Gao, "Delay Compensated One-way Time Synchronization in Distributed Wireless Sensor Networks." IEEE Wireless Communications Letters. vol. 11, no. 10, pp. 2021-2025, Oct. 2022. doi: 10.1109/LWC.2022.3189744. (https://ieeexplore.ieee.org/document/9825722)
- The unpredictability of message delays in the synchronization process greatly influence the performance of time synchronization in wireless sensor networks.
- We propose a joint design of delay compensation and one-way synchronization, which achieves estimation of clock parameters and fluctuated message delays at the same time.
- We design a one-way broadcast scheme which update clock parameters with only one-way message based on the Kalman filter.
- With the accurate delay estimation, we derive an improved clock offset estimation algorithm.
- The proposed algorithm is performed on MATLAB simulation and experimental testbed with five nRF52832 Bluetooth nodes.
Recommended citation: Z. Fang and Y. Gao. (2022). “Delay Compensated One-way Time Synchronization in Distributed Wireless Sensor Networks.” IEEE Wireless Communications Letters. vol. 11, no. 10, pp. 2021-2025, Oct. 2022. doi: 10.1109/LWC.2022.3189744.