دانلود رایگان مقاله مسیریابی مشترک مبتنی بر شبکه برای شبکه حسگر بی سیم قابل شارژ صنعتی

Abstract

Wireless charging techniques provide a more flexible and promising way to solve the energy constraint problem in industrial wireless rechargeable sensor networks (IWRSNs). Although considerable research has been done on wireless charging algorithms, most of it only focuses on passively replenishing nodes having insufficient energy. In this paper, we propose a grid-based joint routing and charging algorithm for IWRSNs to solve the charging problem in a proactive way. On the one hand, a new routing protocol is designed according to charging characteristics of the charger to achieve local energy balance. On the other hand, different charging times are allocated at different charging points on the basis of energy consumption caused by the routing process to achieve global energy balance. Simulation results verify superiority of our proposed algorithm in solving the balancing energy problem and improving survival rates of nodes.

5. Conclusion

In this paper, we propose a grid-based joint routing and charging algorithm for IWRSNs. Simulation results show its superiority in achieving energy balance and improving survival rates of nodes in the network by comparing to the S-CURVES(ad) algorithm. It benefits from the following two aspects. 1) The routing protocol is designed based on the charging characteristics within charging grids, which brings energy balance in the local grid area. 2) The charging time at different charging points is decided by energy consumption rates of nodes around them, which leads to energy balance in the global network. On this premise, energy balance in the network and longer lifetimes of nodes can be achieved. In the future, a more efficient traveling path can be designed, achieving larger survival rates of nodes. Further, an uneven distribution of nodes and barriers in the network should be taken into consideration.