Abstract
Power efficiency is a hot topic nowadays due to dramatically increasing number of devices (nodes) that are difficult to charge, so they need to harvest energy from the environment itself. Since the amount of harvested energy is very limited, it is impossible for the nodes to even “listen” continuously for the packets from neighbors. For the proper scheduling of communication, clock synchronization between the nodes is required. This paper describes the clock synchronization design for WSN in case the continuous listening is not possible. Practical power consumption measurements based on Nordic nRF52840 chip are provided. Parameters selection to minimize the clock synchronization time and power consumption are investigated and example calculations of Lightricity solar panel are provided for reference. Using only \(140\,\upmu \text {W}\) from this panel, designed clock synchronization allows 2 nodes to be synchronized within 180 s time interval with typical 10 ms error.
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Makara, D., Tsybul’nyk, V., Kurnyts’kyi, T. (2019). Power Efficient Clock Synchronization in Bluetooth-Based Mesh Networks. In: Chatzigiannakis, I., De Ruyter, B., Mavrommati, I. (eds) Ambient Intelligence. AmI 2019. Lecture Notes in Computer Science(), vol 11912. Springer, Cham. https://doi.org/10.1007/978-3-030-34255-5_2
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DOI: https://doi.org/10.1007/978-3-030-34255-5_2
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