摘要
当前大多数传感器网络研究假设传感器节点在二维平面部署,然而许多水下传感器网络应用要求节点在三维空间分布。针对三维水下监视应用,提出一种新颖的分布式传感器网络拓扑生成算法(ETG)。基于格理论,ETG算法将节点的移动控制与活动设备的调度相结合。初始时刻监视设备密集部署在二维海平面上,ETG算法根据局部信息选择活动设备,并通过控制其传感器节点在垂直方向的移动,形成一个三维水下网络。仿真实验表明,ETG算法能够以较小的平均节点移动距离覆盖较大的空间,从而有效减少网络建立阶段的能量开销。
Most current wireless sensor networks research assume that sensor nodes are deployed on a two-dimensional（ 2D ）plane. However,a large number of underwater sensor network applications demand for a three-dimensional （3D） distribution of sensor nodes.A novel distributed topology generation algorithm （ETG） is proposed for 3D underwater surveillance sensor networks.Based on the lattice theory,ETG integrates the movement control of sensor nodes with a schednling mechanism.Initially surveillance devices are densely deployed on the 2D sea surface.ETG selects active devices using only local information and controls the vertical movement of their sensor nodes to construct a 3D underwater network.Simulation results show that ETG can achieve larger coverage space at lower cost of average node movement distance ,and thus effectively reduce the energy cost at the network setup phase.
出处
《计算机工程与应用》
CSCD
北大核心
2008年第2期163-168,171,共7页
Computer Engineering and Applications
关键词
三维
水下传感器网络
格
拓扑生成
three-dimensional
underwater sensor networks
lattice
topology generation
