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Wireless Sensor Networks (WSNs) have traditionally been powered by portable energy sources, viz. batteries, which limit their operational lifetime. To ensure WSN sustainability, researchers have turned to alternative energy sources for power. Harvesting ambient energy to power WSNs is a promising approach but energy harvesting devices of the same footprint as wireless sensors are unable to provide...
In this paper, we present a low power solution for multi-hop wireless sensor networks using active radio frequency (RF) harvesting. We show by careful design of both hardware and network protocol that it is possible to design multi-hop networks that use minimal power. We identified critical factors and incorporated them into the protocol design, which we validated by implementing a small testbed of...
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