Visible Light Synchronization for Time-Slotted Energy-Aware Transiently-Powered Communication

Proceedings of the ACM/IEEE International Symposium on Low Power Electronics and Design Pub Date : 2022-08-01 DOI:10.1145/3531437.3539722

A. Torrisi, Maria Doglioni, K. Yıldırım, D. Brunelli

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Abstract

Energy-harvesting IoT devices that operate without batteries paved the way for sustainable sensing applications. These devices force applications to run intermittently since the ambient energy is sporadic, leading to frequent power failures. Unexpected power failures introduce several challenges to wireless communication since nodes are not synchronized and stop operating during data transmission. This paper presents a novel self-powered autonomous circuit design to remedy this problem. This circuit uses visible-light communication (VLC) to enable synchronization for time-slotted energy-aware transiently powered communication. Therefore, it aligns the activity phases of the batteryless sensors so that energy status communication occurs when these nodes are active simultaneously. Evaluations showed that our circuit has an ultra-low power consumption, can work with zero energy cost by relying only on the harvested energy, and supports efficient intermittent communication over intermittently powered nodes.

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时隙能量感知瞬态供电通信的可见光同步

无电池运行的能量收集物联网设备为可持续传感应用铺平了道路。这些设备迫使应用程序间歇性地运行，因为周围的能量是零星的，导致频繁的电源故障。由于节点不同步并且在数据传输期间停止运行，因此意外的电源故障给无线通信带来了一些挑战。本文提出了一种新颖的自供电自主电路设计来解决这一问题。该电路使用可见光通信(VLC)来实现时隙能量感知瞬态供电通信的同步。因此，它对齐无电池传感器的活动阶段，以便在这些节点同时活动时发生能量状态通信。评估表明，我们的电路具有超低功耗，可以仅依靠收集的能量以零能量成本工作，并支持间歇性供电节点上有效的间歇性通信。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the ACM/IEEE International Symposium on Low Power Electronics and Design

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