An energy-efficient data collection protocol with AUV path planning in the Internet of Underwater Things
An energy-efficient data collection protocol with AUV path planning in the Internet of Underwater Things
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DOI：
10.1016/j.jnca.2019.02.025
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发表时间：
2019-06-01
影响因子：
8.7
通讯作者：
Kim, Dongkyun
中科院分区：
文献类型：
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作者：
Khan, Muhammad Toaha Raza;Ahmed, Syed Hassan;Kim, Dongkyun
水下物联网（IOUT）主要由声学传感器节点组成，这些节点主要由电池供电。传感器的电池寿命有限，充电不方便。然而，这些传感器节点组成的水下无线传感器网络（UWSNs），它可以分簇，以节省大量的能量。然而，簇头（CH）的选择是一个关键问题，因为CH在向目的地发送数据之前必须花费额外的能量来执行数据收集和聚合。另一方面，自主水下航行器（AUV）建议桥接UWSN与水面设备或互联网。然而，找到AUV应该遵循的路径是一个悬而未决的问题。在这项工作中，我们提出了一个协议，利用水下机器人，以节省能源浪费的传感器节点在分簇。准确地说，AUV不仅收集数据，而且还负责提名集群头（CH）并为集群创建唤醒-睡眠时间表。此外，我们提出了AUV遍历路径，是知道在网络中的剩余能量。最后，一个广泛的定量评估所提出的计划对国家的最先进的解决方案。
Internet of Underwater Things (IoUT) is primarily comprised of acoustic sensor nodes, which are mostly battery-powered. The battery life of sensors is limited and it is inconvenient to recharge. However, these sensor nodes form the Underwater Wireless Sensor Networks (UWSNs), which can be clustered to save a massive amount of energy. Nevertheless, the selection of cluster head (CH) is a key issue as CH has to spend additional energy for performing data collection and aggregation before transmitting the data towards the destination. On the other hand, autonomous underwater vehicles (AUVs) are recommended to bridge UWSN with surface devices or internet. Yet, finding a path AUV should follow is an open issue. In this work, we proposed a protocol that utilizes AUV to save energy wasted by sensor nodes during clustering. To be precise, AUV not only collects data, but it is also responsible for nominating the Cluster Head (CH) and creating a wakeup-sleep schedule for clusters. In addition, we present AUV traversal path that is aware of residual energy in the network. Finally, an extensive quantitative evaluation of the proposed scheme against state of the art solutions is given.