Energy Savvy Network Joining Strategies for Energy Harvesting Powered TSCH Nodes
Energy Savvy Network Joining Strategies for Energy Harvesting Powered TSCH Nodes
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DOI：
10.1109/tii.2020.3005196
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发表时间：
2021-02
影响因子：
12.3
通讯作者：
Z. Chew;Tingwen Ruan;M. Zhu
中科院分区：
文献类型：
--
作者：
Z. Chew;Tingwen Ruan;M. Zhu
本文提出了使无电池能量收集供电的时间同步信道跳频（TSCH）无线传感器节点加入网络的能量浪费较少的方法。TSCH节点的网络加入是一个非常耗电但又不可避免的过程，以形成一个工作的无线传感器网络（WSN）。由于能量收集的能量水平是稀缺的，能量被动方法是必不可少的。一个占空比的网络加入过程中结合适当的电容器的大小，在这里提出，因为它们之间的因素，可以很容易地控制，而无需额外的能量。当节点以占空比方式加入网络时，其他节点可以在差距时间内加入网络，这减少了节点在等待中的能量浪费。通过适当的电容器尺寸，电容器可以在合理的时间内充电，并使节点上电足够长的时间，这增加了节点完成网络加入过程的概率。结合加入占空比为50%与100 mF的电容器，无线传感器网络成功地形成了两个能量收集供电的无线传感器节点在一个网络加入尝试。
This article presents methods that enable batteryless energy harvesting powered time-synchronized channel hopping (TSCH) wireless sensor nodes to join a network with less energy wastage. Network joining of TSCH nodes is very power hungry yet inevitable process to form a working wireless sensor network (WSN). Since the energy level from energy harvesting is scarce, energy passive methods are essential. A duty-cycled network joining process in combination with an appropriate capacitor size is proposed here as they are among the factors that can be easily controlled without extra energy. When a node joins the network in a duty-cycled manner, other nodes may join the network during the gap time, which reduces energy wastage of the nodes in waiting. With an appropriate capacitor size, the capacitor can be charged up within a reasonable time and power up the node for a sufficiently long time, which increases the probability to complete the network joining process of the node. With the combination of a join duty cycle of 50% with a 100-mF capacitor, a WSN was successfully formed by two energy harvesting powered wireless sensor nodes in one network joining attempt.