An Energy-aware Wireless Charging Schedule Algorithm in Sensor Network

• Main Authors: Wu, Yu-Jui, 吳育瑞
• Other Authors: 石維寬
• Format: Others
• Language: en_US
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/12382801817371603812

碩士 === 國立清華大學 === 資訊系統與應用研究所 === 101 === Battery life is a critical issue for wireless sensor devices. Some solutions for extending the battery lifetime of sensor devices are proposed, such as energy-aware routing, limited hardware capacity, and solar charger. The solar charger is a new technology in renewable energy field for wireless sensor network (WSN). A quick solution to extend the battery life is to integrate solar panel with sensor device, but the solar panel is very expensive for sensor deployment. Hence, equipping every sensor node with a solar panel to collect renewable energy is uneconomic. In general wireless charging solution, people usually deploy a power source provider in a WSN and place some relay chargers to cover sensor nodes in the WSN. Therefore, the problem of scheduling recharge task becomes a critical problem in relay node and power center. We propose a power-aware effective charging (PEC) solution to solve the recharge arrangement problem in WSN. This paper shows that PEC can extend the battery lifetime of sensor device 2~6 times the performance of PEC is better than EDF and random scheduling. (Abstract) Index Terms—Energy-aware, wireless charger, wireless sensor network, solar panel, renewable energy. (key words)