基于局部密度聚类的WSN多Sink节点部署研究
Research on Multiple Sinks Deployment in WSN Based on Local Density Clustering
李翠然 1吕安琪 1谢健骊 1孙振刚1
作者信息
- 1. 兰州交通大学 电子与信息工程学院,甘肃 兰州 730070
- 折叠
摘要
针对无线传感器网络中传感器节点能量受限,网络生命周期短的问题,在考虑网络成本的情况下,提出一种基于节点局部密度聚类的多Sink节点优化部署算法.首先,基于多属性因子构建聚类决策函数确定Sink节点部署位置,完成传感器节点聚类;然后,根据下一跳节点与Sink节点间距离最短准则搜索并形成数据传输路径;最后,以网络生命周期成本比最大化为依据确定最优的Sink节点数目,实现多Sink节点优化部署.仿真结果表明:与已有算法相比,所提算法能够有效延长网络生命周期,具有较高的网络生命周期能效比.
Abstract
Aiming at the problem of limited energy and short network lifetime in wireless sensor networks,an optimal deployment algo-rithm of multi-sinks based on node local density clustering is proposed under the consideration of network cost.Firstly,a clustering deci-sion function based on multi-attribute factors is constructed to determine the deployment location of sink nodes,and complete the cluste-ring of sensor nodes.Then,a data transmission path is searched and formed according to the criterion that the distance between the next hop node and the sink node is the shortest.Finally,the number of sink nodes is determined by maximizing the ratio of network lifetime to cost,and the optimal deployment of multi-sinks is completed.Compared with the existing algorithms,the simulation results show that the proposed algorithm can effectively prolong the network lifetime,and has higher ratio of network lifetime to energy consumption.
关键词
无线传感器网络/Sink节点部署/局部密度聚类/网络生命周期Key words
wireless sensor network/Sink deployment/local density clustering/network lifetime引用本文复制引用
基金项目
国家自然科学基金项目(62161016)
甘肃省科技计划项目(20JR10RA273)
出版年
2024
国家科技期刊平台
NSTL
万方数据