基于改进SSA优化WSN分簇协议  

Optimizing WSN Clustering Rotocol Based on Improved SSA

作　　者：孙其昌 朱正礼[1] 张福全[1] SUN Qichang;ZHU Zhengli;ZHANG Fuquan(School of Information Science and Technology,Nanjing Forestry university,Nanjing 210037,China)

机构地区：[1]南京林业大学信息科学技术学院,江苏南京210037

出　　处：《无线电通信技术》2022年第1期132-139,共8页Radio Communications Technology

基　　金：国家自然科学基金(31670554)。

摘　　要：无线传感器网络(Wireless Sensor Networks,WSN)的路由协议是无线传感器网络领域中的一个研究热点。针对LEACH协议的不足,提出一种基于自适应t分布改进麻雀搜索算法(Improved Sparrow Search Algorithm,ISSA)的改进LEACH协议(LEACH-ISSA),以解决随机簇首选择、节点分布以及LEACH能耗不均的问题。通过LEACH协议对LEACH-ISSA进行初步分簇后,排除低能节点以生成候选簇首;然后结合剩余能量、节点之间的距离和相邻节点因子,建立适应度函数,以ISSA算法优化候选簇首的选择。实验结果表明,与LEACH协议相比,LEACH-ISSA协议的集群效果得到优化,簇首的能耗降低,集群中节点的能耗得以均衡,网络生命周期有效延长。Routing protocol of wireless sensor network(WSN)is a research hotspot in wireless sensor network.An improved LEACH protocol(LEACH-ISSA)based on adaptive t-distribution improved sparrow search algorithm(ISSA)is proposed to solve the problems of random cluster head selection,node distribution and LEACH uneven energy consumption.After preliminary clustering of LEACH-ISSA through LEACH protocol,low-energy nodes are excluded to generate candidate cluster heads.Then the fitness function is established by combining the remaining energy,the distance between nodes and the adjacent node factors.And the choice of candidate cluster heads is optimized by ISSA algorithm.Experimental results show that,compared with LEACH protocol,the cluster effect of LEACH-ISSA protocol is optimized,the energy consumption of the cluster head is reduced,the energy consumption of the nodes in the cluster is balanced,and the network life cycle is effectively extended.

关 键 词：改进麻雀搜索算法 无线传感网络 路由协议 分簇 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置] TN929.5[自动化与计算机技术—控制科学与工程]