摘要
针对传感器网络中的节点冗余问题,提出了一种冗余判别方法来关闭冗余节点,以达到延长网络生命周期的目的.首先按邻居节点的不同位置对节点进行分类,研究了每组邻居节点的网络覆盖率与工作节点数k之间的约束关系,在此基础上,按不同的冗余法则对节点进行判断,关闭冗余节点.理论分析和实验结果表明,提出的算法能关闭网络中的冗余节点从而有效地延长网络的生存时间.
To solve the problem of redundant nodes in sensor netw orks,this paper proposes a w ay to determine and turn off redundant nodes in order to lengthen the netw ork lifecycle.This paper first classifies nodes by the different locations of the neighboring nodes,and then studies the constraint relations betw een coverage of neighboring nodes and w orking nodes k in each group.On this basis,the paper determines nodes according to different redundancy rules and turns off redundant nodes.The theoretical analysis and experimental results show that the proposed algorithm can turn off redundant nodes in the netw ork,w hich in turn effectively prolongs the netw ork＇s lifetime.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2014年第10期1907-1912,共6页
Acta Electronica Sinica
基金
国家自然科学基金(No.61171053
No.61300239
No.61373137)
江苏省高校自然科学研究重大项目(No.11KJA520001)
江苏省博士后科研资助计划(No.1302085B)
教育部高等学校博士学科点专项科研基金(No.20113223110002)
关键词
节点调度
异构无线传感器网络
邻居节点分类
邻居节点距离
node scheduling
heterogeneous w ireless sensor netw orks
categorization of neighborhood nodes
distance of neighborhood nodes
