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http://dx.doi.org/10.9708/jksci.2020.25.02.105

An Efficient Cluster Management Scheme Using Wireless Power Transfer for Mobile Sink Based Solar-Powered Wireless Sensor Networks  

Son, Youngjae (Dept. of Software Convergence, Soongsil University)
Kang, Minjae (School of Convergence Specialization, Soongsil University)
Noh, Dong Kun (Dept. of Software Convergence, Soongsil University)
Publication Information
Journal of the Korea Society of Computer and Information / v.25, no.2, 2020 , pp. 105-111 More about this Journal
Abstract
In this paper, we propose a scheme that minimizes the energy imbalance problem of solar-powered wireless sensor network (SP-WSN) using both a mobile sink capable of wireless power transfer and an efficient clustering scheme (including cluster head election). The proposed scheme charges the cluster head using wireless power transfer from a mobile sink and mitigates the energy hotspot of the nodes nearby the head. SP-WSNs can continuously harvest energy, alleviating the energy constraints of battery-based WSN. However, if a fixed sink is used, the energy imbalance problem, which is energy consumption rate of nodes located near the sink is relatively increased, cannot be solved. Thus, recent research approaches the energy imbalance problem by using a mobile sink in SP-WSN. Meanwhile, with the development of wireless power transmission technology, a mobile sink may play a role of energy charging through wireless power transmission as well as data gathering in a WSN. Simulation results demonstrate that increase the amount of collected data by the sink using the proposed scheme.
Keywords
Wireless Sensor Network; Mobile Sink; Wireless Power Transfer; Cluster; Harmony Search Algorithm;
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