Powered by OpenAIRE graph
Found an issue? Give us feedback
addClaim

Joint Wireless Charging and Sensor Activity Management in Wireless Rechargeable Sensor Networks

Authors: Yuan Gao 0035; Cong Wang 0006; Yuanyuan Yang 0001;

Joint Wireless Charging and Sensor Activity Management in Wireless Rechargeable Sensor Networks

Abstract

Recent studies show that the novel wireless charging technology can extend the lifetime of Wireless Sensor Networks (WSNs) towards perpetual operations. Recharging Vehicles (RVs) can be applied in WSNs to recharge sensors conveniently via wireless charging devices. Most of existing work focused only on energy replenishment whereas ignored sensor activity management. In this paper, we propose a new framework that can jointly schedule sensor activity and recharging to save the traveling energy of RVs. First, we propose two schemes to manage sensor activity: balanced clustering and distributed sensor activation schemes. We further introduce a new metric so that the energy demand in each cluster can be managed. Then we formulate the recharging problem into a Traveling Salesman Problem with Profits, which is NP-hard. For the recharging route schedule, we first study the case of a single RV by coordinating sensor activity and energy replenishment, and then extend it to multiple RVs using two different schemes. The first scheme focuses on reducing traveling distance of RVs by confining their moving scopes and the second one improves the overall system performance by giving RVs a global view over the entire network. Finally, we validate the correctness and evaluate the performance of the sensor activity management schemes along with the recharging algorithms by extensive simulations. Our results indicate that significant reduction on system cost can be achieved. The sensor activity management schemes can save traveling energy of RVs by 16% while maintaining a reliable detection on targets. Compared with a simple greedy algorithm, the first and the second recharging schemes can save 41% and 13% traveling distance of RVs, and reduce nonfunctional nodes by 23% and 52%, respectively.

Related Organizations
  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    12
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
12
Top 10%
Top 10%
Top 10%
Upload OA version
Are you the author of this publication? Upload your Open Access version to Zenodo!
It’s fast and easy, just two clicks!