An energy aware adaptive sampling algorithm for energy harvesting WSN with energy hungry sensors

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Title: An energy aware adaptive sampling algorithm for energy harvesting WSN with energy hungry sensors
Authors: Srbinovsky, Bruno
Magno, Michele
Edwards-Murphy, Fiona
Pakrashi, Vikram
Popovici, Emanuel
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Date: 28-Mar-2016
Online since: 2019-05-14T11:34:32Z
Abstract: Wireless sensor nodes have a limited power budget, though they are often expected to be functional in the field once deployed for extended periods of time. Therefore, minimization of energy consumption and energy harvesting technology in Wireless Sensor Networks (WSN) are key tools for maximizing network lifetime, and achieving self-sustainability. This paper proposes an energy aware Adaptive Sampling Algorithm (ASA) for WSN with power hungry sensors and harvesting capabilities, an energy management technique that can be implemented on any WSN platform with enough processing power to execute the proposed algorithm. An existing state-of-the-art ASA developed for wireless sensor networks with power hungry sensors is optimized and enhanced to adapt the sampling frequency according to the available energy of the node. The proposed algorithm is evaluated using two in-field testbeds that are supplied by two different energy harvesting sources (solar and wind). Simulation and comparison between the state-of-the-art ASA and the proposed energy aware ASA (EASA) in terms of energy durability are carried out using in-field measured harvested energy (using both wind and solar sources) and power hungry sensors (ultrasonic wind sensor and gas sensors). The simulation results demonstrate that using ASA in combination with an energy aware function on the nodes can drastically increase the lifetime of a WSN node and enable self-sustainability. In fact, the proposed EASA in conjunction with energy harvesting capability can lead towards perpetual WSN operation and significantly outperform the state-of-the-art ASA.
Funding Details: Science Foundation Ireland
Type of material: Journal Article
Publisher: MDPI
Journal: Sensors (Switzerland)
Volume: 16
Issue: 4
Start page: 448
End page: 448
Copyright (published version): 2016 the Authors
Keywords: Adaptive samplingEnergy harvestingEnergy managementPower hungry sensorsSolar energy harvestingWind energy harvestingWSN
DOI: 10.3390/s16040448
Language: en
Status of Item: Peer reviewed
Appears in Collections:Mechanical & Materials Engineering Research Collection

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