[Legacy Report] Energy Harvesting for Wireless Sensor Networks: Myth or Reality?

#Technical #Seminar

Energy harvesting (EH) provides a means of greatly enhancing the lifetime of wireless sensor nodes. However, the randomness inherent in the EH process may cause significant delay for performing sensing operation and transmitting the sensed information to the sink. In this work, we consider an EH sensor that monitors some status property and adopts a harvest-then-use protocol to perform sensing and transmission. We study the delay performance and consider two complementary metrics: (i) update age - measuring the time taken from when information is obtained by the sensor to when the sensed information is successfully transmitted to the sink, i.e., how timely the updated information at the sink is, and (ii) update cycle - measuring the time duration between two consecutive successful transmissions, i.e., how frequently the information at the sink is updated. Our results show that the consideration of sensing energy cost leads to an important trade-off between the two metrics: more frequent updates result in less timely information available at the sink.

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• Canberra, Australian Capital Territory
• Australia

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• Co-sponsored by Salman Durrani