摘要
针对三维无线传感器网络区域中节点覆盖的问题,提出一种半径可调的无线传感器网络三维覆盖算法(3D-CAAR)。该算法利用虚拟力作用实现无线传感器网络的节点均匀部署,同时结合传感器节点的半径可调覆盖机制,判断节点与被覆盖区域中目标点之间的距离。引入能耗阈值,使得节点根据自身情况调节节点感知半径,从而降低无线传感器网络的整体能耗,提高了节点利用率。最后,通过与传统基于人工势场的三维部署算法(APFA3D)、基于与未知目标精确覆盖的三维算法(ECA3D)仿真实验对比,3D-CAAR的事件集覆盖效能明显较高,能有效解决三维无线传感器网络中对目标节点的覆盖问题。
For the problem of coverage in 3D Wireless Sensor Network(WSN),this paper introduced a Three-Dimensional Coverage Algorithm based on Adjustable Radius in wireless sensor network(3D-CAAR).Virtual force was used to achieve uniform distribution of nodes in WSN,at the same time,the distance between a sensor node and the target points in the covered area were determined by the radius adjustable coverage mechanism of sensor nodes.An energy consumption threshold was introduced to enable nodes to adjust their radii according to their own situations,thus reducing the overall network energy consumption and improving node utilization rate.Finally,compared with the traditional ECA3D(Exact Covering Algorithm in Three-Dimensional space)and APFA3D(Artificial Potential Field Algorithm in Three-Dimensional space)by experiments,3D-CAAR can effectively solve the problem of target node coverage in sensor network.
作者
党小超
邵晨光
郝占军
DANG Xiaochao;SHAO Chenguang;HAO Zhanjun(College of Computer and Engineering,Northwest Normal University,Lanzhou Gansu 730070,China;Gansu Province Internet of Things Engineering Research Center,Lanzhou Gansu 730070,China)
出处
《计算机应用》
CSCD
北大核心
2018年第9期2581-2586,2615,共7页
journal of Computer Applications
基金
国家自然科学基金资助项目(61662070
61762079)
甘肃省科技重点研发项目(1604FKCA097
17YF1GA015)
甘肃省科技创新项目(17CX2JA037
17CX2JA039)~~
关键词
无线传感器网络
三维覆盖
虚拟力
半径可调
事件集
Wireless Sensor Network(WSN)
3D-coverage
virtual force
adjustable radius
event set
