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Open AccessArticle

Energy Storage Overflow-Aware Data Delivery Scheme for Energy Harvesting Wireless Sensor Networks

by Wenwei Lu 1,2, Yi-hua Zhu 1,* and Kaikai Chi 1
1
School of Computer Science & Technology, Zhejiang University of Technology, Hangzhou 310023, China
2
School of Information Engineering, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(6), 1383; https://doi.org/10.3390/s19061383
Received: 16 January 2019 / Revised: 15 March 2019 / Accepted: 18 March 2019 / Published: 20 March 2019
(This article belongs to the Section Sensor Networks)
In Energy-Harvesting Wireless Sensor Networks (EH-WSNs), energy storage with limited capacity is used in the nodes to store the harvested energy. Energy storage overflow (ESO) happens when the energy storage is full, which causes the nodes to be unable to store the newly harvested energy. In traditional data delivery schemes, there is the problem of “energy hungry and surplus coexistence”, meaning that some nodes in the network are hungry for energy while some other nodes continue to waste energy due to ESO. To alleviate this problem, in this paper, we present the ESO-aware multiple path (EAMP) data delivery scheme so that more data can be delivered to the sink. With the EAMP, multiple disjoint paths from the source node to the sink are constructed, and the source node splits data into multiple pieces with each going through one of the paths, which helps in mitigating ESO. Simulation results show that the proposed EAMP scheme can deliver more data than the existing ones. View Full-Text
Keywords: energy harvesting wireless sensor network; data delivering; energy conservation; energy storage overflow energy harvesting wireless sensor network; data delivering; energy conservation; energy storage overflow
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Lu, W.; Zhu, Y.-H.; Chi, K. Energy Storage Overflow-Aware Data Delivery Scheme for Energy Harvesting Wireless Sensor Networks. Sensors 2019, 19, 1383.

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