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An Empirical Study of Harvesting-Aware Duty Cycling in Sustainable Wireless Sensor Networks

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Executive Summary

In sustainable wireless sensor networks powered by ambient energy harvesting, node operation highly depends on the energy availability and harvesting rate. For them to support existing wireless sensor network applications, duty-cycling schemes need to adapt the nodes' sleep-wake schedules according to energy harvesting and consumption rates. In this paper, the authors propose a harvesting-aware duty-cycling scheme, perform an empirical study of this scheme over a solar harvesting powered wireless sensor network in a source-relay-sink configuration, and provide some experimental results to illustrate its throughput performance under various light conditions.

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