0100483403

open access

Accepted Manuscript

20-µs Accuracy Time-Synchronization Method using Bluetooth Low Energy for Internet-of-Things Sensors

English (英語)

2022 IEEE 19th Annual Consumer Communications & Networking Conference (CCNC)

181-186

IEEE

2022-02-10

2023-10-27

This paper presents a low-power and accurate time-synchronization method for Internet-of-Things (IoT) sensors. Time synchronization between the base station and sensor nodes is important for realizing synchronized measurement and data collection from multiple sensor nodes. The proposed method is implemented within the application layer of the Bluetooth Low Energy protocol, and it only requires a 32.768-kHz real-time clock and an active flag of a power amplifier in the transmission circuit and a low-noise amplifier in the receiver circuit. This limited hardware requirement allows for the implementation of commercially available communication modules. The synchronization performance was evaluated with eight peripheral nodes and one central node, and the measurement results indicate that a 20-µs synchronization error was achieved on average for all the eight peripherals.

Bluetooth Low Energy

会議発表論文

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