能量捕获传感网中吞吐量最大化的占空比方案

doi:10.11896/j.issn.1002-137X.2018.06.017

计算机科学 ›› 2018, Vol. 45 ›› Issue (6): 100-104.doi: 10.11896/j.issn.1002-137X.2018.06.017

能量捕获传感网中吞吐量最大化的占空比方案

池凯凯, 林一民, 李燕君, 程珍

浙江工业大学计算机科学与技术学院杭州310023

出版日期:2018-06-15 发布日期:2018-07-24
作者简介:池凯凯(1980－),男,博士,教授,主要研究方向为无线网络,E-mail:kkchi@zjut.edu.cn(通信作者);林一民(1992－),男,硕士生,主要研究方向为无线传感器网络;李燕君(1982－),女,博士,副教授,主要研究方向为无线传感器网络;程珍(1981－),女,博士,副教授,主要研究方向为网络安全
基金资助:
本文受国家自然科学基金(61472367,61432015,61379124)资助

Duty Cycle Scheme Maximizing Throughput in Energy Harvesting Sensor Networks

CHI Kai-kai, LIN Yi-min, LI Yan-jun, CHENG Zhen

School of Computer Science and Technology,Zhejiang University of Technology,Hangzhou 310023,China

Online:2018-06-15 Published:2018-07-24

摘要/Abstract

摘要： 对于以超级电容为储能设备且工作在占空比模式下的能量捕获传感网,其节点的平均能量捕获速率和吞吐量均很大程度上取决于节点开始休眠时的电容电压和醒来工作时的电容电压。首先,通过理论分析证明传感器节点的能量捕获速率很大程度上取决于电容的即时电压值;然后,对节点的最大吞吐量问题进行建模;最后,提出一种最优化方案来确定开始休眠时的电容电压和醒来工作时的电容电压的最佳取值,从而最大化节点的吞吐量。实验表明,所提方案的吞吐量比已有占空比方案的吞吐量有明显的提高。

关键词: 能量捕获速率, 能量捕获无线传感网, 吞吐量最优化, 占空比

Abstract: For energy harvesting wireless sensor networks (EH-WSNs) working under the extremely low-duty-cycle mode and using the super capcitor as energy storage device,both the average energy harvesting rate and the throughput of node greatly depend on the capacitor voltage when it begins to sleep and wakes up.This paper firstly demonstrated that the energy harvesting rate significantly depends on the instant capacitor voltage through the theoretical analysis,then formulated the maximal node throughput problem and finally provided an approach to solve this problem for obtaining the optimal values of capacitor voltage to start sleeping and capactior voltage to wake up.Numerical results show that the throughput of the duty-cycle-optimized scheme is significantly larger than that of the available duty-cycle schemes.

Key words: Duty cycle, Energy harvesting rate, Energy harvesting wireless sensor networks, Throughput optimization

中图分类号:

TP311

池凯凯, 林一民, 李燕君, 程珍. 能量捕获传感网中吞吐量最大化的占空比方案[J]. 计算机科学, 2018, 45(6): 100-104. https://doi.org/10.11896/j.issn.1002-137X.2018.06.017

CHI Kai-kai, LIN Yi-min, LI Yan-jun, CHENG Zhen. Duty Cycle Scheme Maximizing Throughput in Energy Harvesting Sensor Networks[J]. Computer Science, 2018, 45(6): 100-104. https://doi.org/10.11896/j.issn.1002-137X.2018.06.017

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能量捕获传感网中吞吐量最大化的占空比方案

Duty Cycle Scheme Maximizing Throughput in Energy Harvesting Sensor Networks

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