Extending Network Lifetime by Exploiting Wireless Charging in WSN

L. Quan, T. Nguyen, Phi-Le Nguyen
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引用次数: 5

Abstract

In recent years, wireless energy transfer technology has emerged as a promising solution to supply energy for sensors and extend the network lifetime. In the literature, although significant efforts have been devoted to optimizing the charging schedule, it still remains a challenging problem. In this paper, we study how to prolong the network lifetime by optimizing the charging time. Specifically, we aim at proposing a charging schedule that maximizes the minimum residual energy of sensors. We first mathematically formulate the problem under mixed integer and linear programming. Then, we propose a lightweight heuristic algorithm. The experiment results show that our proposed algorithms extend network lifetime more than 10% compared to the state-of-the-art.
利用无线充电技术延长WSN网络寿命
近年来,无线能量传输技术已成为一种很有前途的解决方案,为传感器提供能量,延长网络寿命。在文献中,尽管对充电计划的优化进行了大量的研究,但这仍然是一个具有挑战性的问题。本文研究了如何通过优化充电时间来延长网络寿命。具体来说,我们的目标是提出一个充电计划,以最大限度地减少传感器的剩余能量。首先在混合整数规划和线性规划的条件下,用数学方法对该问题进行了表述。然后,我们提出了一种轻量级的启发式算法。实验结果表明,与现有算法相比,我们提出的算法将网络寿命延长了10%以上。
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