隨機佈建無線感測網路中的無線充電機制

A Novel Path Construction Scheme for Mobile Charger in WSNs

趙宇(Yu Zhao)

指導教授 ： 張志勇

淡江大學/工學院/資訊工程學系碩士班/碩士(2015年)

https://doi.org/10.6846/TKU.2015.01031

摘要

充電議題是無線感測網(WSNs)領域中的重要議題，它的主要目標是保證WSNs中每顆感測器的永續生存，以達到連續不斷地對目標區域進行感知與監控的目的。採用移動充電車對場景中的sensor進行無線充電是一種比較常見的充電方法。然而，充電車的行走路線和充電排程一直是亟需解決的問題。本文從無線充電原理入手，同時考慮網路拓撲結構，提出了一種充電路徑與排程的構建機制，與傳統的充電機制相比，有著更好的環境適應性與更優的路徑。除此以外，還具有可以同時充電與移動充電等優點。

關鍵字

路徑構建 ； 能量補充 ； 行動充電車

並列摘要

Energy replenishment for wireless sensor networks (WSNs) has received much attention in recent years. The main purpose of energy replenishment is to guarantee the unlimited lifetime of every sensor in WSNs, enabling a sustainable environment monitoring or event detecting. Adopting wireless mobile charger as the source of energy replenishment is one of the most popular schemes. However, path planning and charging scheduling are two key factors that impact the charging performance. This paper aims to develop an efficient energy charging scheme using mobile charger. Initially, this paper proposes a charging constraint according to the energy requirement of sensor node and the path that passes through the charging range of each static sensor. Based on this charging constraint, this paper proposes a charging path construction and charging schedule scheme. Compared with traditional charging scheme, our schemes have better charging performance.

並列關鍵字

path construction ； energy replenishment ； mobile charger

參考文獻

[1] Liang He, Peng Cheng, Yu Gu, Jianping Pan, Ting Zhu, Cong Liu “Mobile-to-Mobile Energy Replenishment in Mission-Critical Robotic Sensor Networks,” IEEE INFOCOM 2014

[2] P. Cheng, S. He, F. Jiang, Y. Gu, and J. Chen, “Optimal scheduling for quality of monitoring in wireless rechargeable sensor networks,” IEEE Transactions on Wireless Communications, vol. 12, no. 6, pp. 3072–3084, 2013.

[4] Changlin Yang and Kwan-Wu Chin, “A Novel Distributed Algorithm for Complete Targets Coverage in Energy Harvesting Wireless Sensor Networks,” IEEE ICC 2014.

[5] Hyungsik Ju and Rui Zhang, “A Novel Mode Switching Scheme Utilizing Random Beamforming for Opportunistic Energy Harvesting,” IEEE Transactions on Wireless Communications, vol. 13, no. 4, pp. 2150–2162, April 2014.

[6] Kurs A., Karalis A., Moffatt R., Joannopoulos J.D., Fisher P., Soljaˇci´c M.: Wireless power transfer via strongly coupled magnetic resonances. Science 317 (2007) 83–86