射频能量捕获无线传感网中占空比最佳的能量源布置方法
发布时间：2019-07-20 14:44
【摘要】：无线射频能量传输技术在为下一代无线传感器网络供能方面具有广阔的应用前景。射频能量捕获无线传感网由于能量捕获速率非常有限,通常工作在极低的占空比模式下。因此这类无线传感器网络的一个基本问题就是如何配置给定数量的射频能量源(Energy Transmitters,ETs),从而最大化最糟糕(即具有最低能量捕获速率)节点的能量捕获速率,即最大化其占空比。首先对能量源最优化布置问题建模,为深入了解该问题提供理论基础;然后分别提出了贪婪式ETs布置方法和基于粒子群优化(Particle Swarm Optimization,PSO)的ETs布置方法。仿真结果显示,相较于均匀布置方法,所提出的两种能量源布置方法能够极大地提高全网最低占空比。
[Abstract]:Radio frequency energy transmission technology has a broad application prospect in energy supply for the next generation wireless sensor networks. Radio frequency energy acquisition wireless sensing networks usually work in very low duty cycle mode because of the limited energy acquisition rate. Therefore, one of the basic problems of this kind of wireless sensor networks is how to configure a given number of radio frequency energy sources (Energy Transmitters,ETs) to maximize the energy capture rate of the worst (that is, with the lowest energy capture rate) nodes, that is, to maximize their duty cycle. Firstly, the optimal arrangement problem of energy source is modeled, which provides a theoretical basis for further understanding of the problem, and then the greedy ETs layout method and the ETs layout method based on particle swarm optimization (Particle Swarm Optimization,PSO) are proposed respectively. The simulation results show that compared with the uniform arrangement method, the proposed two energy source arrangement methods can greatly improve the minimum duty cycle of the whole network.
【作者单位】： 浙江工业大学计算机科学与技术学院;浙江省可视媒体智能处理技术研究重点实验室;
【基金】：国家自然科学基金(61472367,61432015) 浙江省自然科学基金(LY15F020029,LY15F020027)资助
【分类号】：TP212.9;TN929.5
本文编号：2516793
[Abstract]:Radio frequency energy transmission technology has a broad application prospect in energy supply for the next generation wireless sensor networks. Radio frequency energy acquisition wireless sensing networks usually work in very low duty cycle mode because of the limited energy acquisition rate. Therefore, one of the basic problems of this kind of wireless sensor networks is how to configure a given number of radio frequency energy sources (Energy Transmitters,ETs) to maximize the energy capture rate of the worst (that is, with the lowest energy capture rate) nodes, that is, to maximize their duty cycle. Firstly, the optimal arrangement problem of energy source is modeled, which provides a theoretical basis for further understanding of the problem, and then the greedy ETs layout method and the ETs layout method based on particle swarm optimization (Particle Swarm Optimization,PSO) are proposed respectively. The simulation results show that compared with the uniform arrangement method, the proposed two energy source arrangement methods can greatly improve the minimum duty cycle of the whole network.
【作者单位】： 浙江工业大学计算机科学与技术学院;浙江省可视媒体智能处理技术研究重点实验室;
【基金】：国家自然科学基金(61472367,61432015) 浙江省自然科学基金(LY15F020029,LY15F020027)资助
【分类号】：TP212.9;TN929.5
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