UAV-assisted data gathering in wireless sensor networks
UAV-assisted data gathering in wireless sensor networks
复制标题
无线传感器网络中无人机辅助数据采集
DOI：
10.1007/s11227-014-1161-6
复制
发表时间：
2014-12-01
影响因子：
3.3
通讯作者：
Zhu, Haojin
中科院分区：
文献类型：
--
作者：
Dong, Mianxiong;Ota, Kaoru;Zhu, Haojin
无人机（UAV）与传感器节点之间的直接通信使其在时间和能量上都具有足够的资源，是无线传感器网络中数据收集的理想载体。另一方面，在无线传感器网络中实现无人机数据采集系统还存在一些挑战性的问题，如无人机的速度和网络密度对数据采集的影响较大，以及多个传感器节点同时向无人机发送自身数据时会产生严重的冲突。为了解决这些问题，我们提出了一种新的数据收集算法，利用无人机和移动的代理（MA）的自主收集和处理无线传感器网络中的数据。具体而言，UAV向网络派遣MA，并且每个MA负责通过在该区域周围行进来收集和处理来自网络区域中的传感器节点的数据。UAV通过具有聚合的传感数据的MA获得期望的信息。在本文中，我们设计了一个路线的MA迁移考虑网络密度。仿真结果表明，我们提出的方法是时间和能量效率的任何密度的网络。
An unmanned aerial vehicle (UAV) is a promising carriage for data gathering in wireless sensor networks since it has sufficient as well as efficient resources both in terms of time and energy due to its direct communication between the UAV and sensor nodes. On the other hand, to realize the data gathering system with UAV in wireless sensor networks, there are still some challenging issues remain such that the highly affected problem by the speed of UAVs and network density, also the heavy conflicts if a lot of sensor nodes concurrently send its own data to the UAV. To solve those problems, we propose a new data gathering algorithm, leveraging both the UAV and mobile agents (MAs) to autonomously collect and process data in wireless sensor networks. Specifically, the UAV dispatches MAs to the network and every MA is responsible for collecting and processing the data from sensor nodes in an area of the network by traveling around that area. The UAV gets desired information via MAs with aggregated sensory data. In this paper, we design a itinerary of MA migration with considering the network density. Simulation results demonstrate that our proposed method is time- and energy-efficient for any density of the network.