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 Home > Achievement > Main Contributions > SCI > DEARER: A Distance-and-Energy-Aware Routing with Energy Reservation for Energy Harvesting Wireless Sensor Networks

Domestic/International 국외  Principal Author Byonghyo Shim, Dong In Kim 
Title DEARER: A Distance-and-Energy-Aware Routing with Energy Reservation for Energy Harvesting Wireless Sensor Networks 
Journal IEEE Journal on Selected Areas in Communications (Impact Factor : 3.672 ; JCR 상위 5%) 
Authors Yunquan Dong, Jian Wang,Byonghyo Shim, Dong In Kim 
Date 2016년 12월 Page 3798-3813 
Volume 34   Number 12 

 We consider cluster-based routing protocols for energy harvesting wireless sensor networks (EH-WSNs). Since the energy harvesting process does not match the real energy demand, sensor nodes suffer from occasional energy shortages, especially when they serve as cluster head (CH) nodes. To address this problem, we propose a cluster-based routing protocol referred to as the distance-and-energy-aware routing with energy reservation (DEARER). The DEARER protocol encourages nodes with high energy-arrival rate or being close to the sink to serve as CH nodes. Also, DEARER allows non-CH nodes to reserve a portion of the harvested energy for future use. In doing so, DEARER selects “enabler” nodes as CH nodes and provides them with more energy, thereby mitigating the energy shortage events at CH nodes. By theoretical analysis and numerical experiments, we demonstrate that the DEARER protocol outperforms direct transmission and also approaches the genie-aided routing where CH nodes are selected based on the real-time energy information of each node.

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