摘要
针对无线传感器网络能耗不均衡、能量利用率低等问题,在PARPEW协议基础上提出了一种基于能量福利函数的传感网络节能路由算法。通过在簇形成阶段引入能量代价开销公式和能量福利函数确定簇成员和最终簇头,并且对选举临时簇头时的阈值进行了优化;簇间路由阶段,采用单跳与多跳结合方式,中继节点选举时的权值函数加入了簇内节点个数、已当选过中继节点次数因素。仿真实验表明,与LEACH和原PARPEW协议相比,改进算法均衡了网络能耗,提高了能量利用率,延长了网络生存周期。
For the problems of unbalanced energy consuming and low energy usage efficiency in wireless sensor network,an energy-efficient routing algorithm based on energy welfare function is proposed.In the cluster formation stage,thecluster members and the real cluster heads are determined by the formula of energy overhead and energy welfare function,and the threshold used by selecting the temporary cluster heads is also improved.In the multi-hop routing stage,the relaynodes forward the data by a routing algorithm which combines single-hop and multi-hop technology.The selection of relaynodes depends on the weight value which adds the number of nodes in the cluster,the times which has been selected asrelay nodes.The simulation results show,comparing to the LEACH and the PARPEW protocol,that the improved protocolbalances the network energy consuming,enhances the energy utilization efficiency and prolongs the network lifetime.
作者
王磊
谢弯弯
齐俊艳
贾宗璞
WANG Lei;XIE Wanwan;QI Junyan;JIA Zongpu(School of Computer Science and Technology, Henan Polytechnic University, Jiaozuo, Henan 454000, China;State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China)
出处
《计算机工程与应用》
CSCD
北大核心
2017年第12期121-127,共7页
Computer Engineering and Applications
基金
河南省重点科技攻关项目(No.152102210102
No.132102210123)
河南省基础前沿项目(No.132300410333)
河南省教育厅科技攻关计划项目(No.13A520321
No.16A520052
No.15A520001)
河南理工大学博士基金(No.B2013-040)
关键词
无线传感器网络
网络能耗
能量福利函数
簇头
wireless sensor network
energy consuming
energy welfare function
cluster heads
