基于信任匹配机制的WSN主备节点更新算法

文章摘要

基于信任匹配机制的WSN主备节点更新算法

The Updating Algorithm Of Primary And Secondary Nodes in WSN Based On Trust Matching Mechanism

投稿时间：2020-10-17 修订日期：2020-10-17

DOI：

英文关键词: wireless sensor network Node update Trust matching Main standby polling Clustering mechanism

基金项目:1、课题名称：安徽省高校科研立项课题“基于人工智能技术的“平安校园”智能安防系统研究与设计” 课题编号：KJ2019A11362、课题名称：安徽省级校企合作示范实训中心“滁州职业技术学院滁州市易搜信息技术有限公司软件开发实训中心”教学研究项目课题编号：2019xqsxzx31

作者	单位	邮编
吴昊^*	滁州职业技术学院，信息工程学院	239000

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中文摘要:

WSN网络在分区过程中需要频繁进行主备节点更换流程，但更换过程不当将会加剧区域能量消耗并降低网络生命周期，给网络运行带来不稳定因素。为此，提出了一种基于信任匹配机制的WSN主备节点更新算法。首先，引入聚类机制并结合能量、拉氏距离、最短跳数扥参数，设计了基于动态维度判决方法的信任匹配机制，降低单因素条件下节点主备轮询异常的情形，改善节点受限状况，优化主备节点存活质量。随后，针对一次更新过程中存在的匹配性不强的问题，引入排序机制，设计了基于双重匹配的节点更新机制，通过从备用节点中筛选出待更新节点，优先用于监控区域节点能数据传输质量及安全，进一步降低区域能量消耗水平。仿真实验表明：与当前领域内得到广泛使用的基于簇的无线传感器网络能量消耗最小化算法（A Cluster-Based Approach for Minimizing Energy Consumption by Reducing Travel Time of Mobile Element in WSN，CBA-E算法）和基于提高无线传感器网络生存期机制的改进簇路由协议算法（An Improved Cluster Routing Protocol to Increase the Lifetime of Wireless Sensor Network，IIL算法）相比，本文算法具有节点更新频率低的特点，能显著提高网络生存时间，具有很强的实际指导价值，可在实践中进行广泛推广及运用。

英文摘要:

WSN network needs frequent replacement process of primary and backup nodes in the process of partition, but improper replacement process will aggravate regional energy consumption and reduce network life cycle, which will bring unstable factors to network operation. In view of this, this paper proposes a trust matching mechanism based update scheme for primary and secondary nodes in WSN. First of all, the algorithm introduces clustering mechanism and designs a trust matching mechanism based on dynamic dimension decision method combining with the parameters of energy, Euclidean distance and shortest hop count to reduce the abnormal situation of primary and standby polling under single factor condition, improve the limited condition of nodes and optimize the quality of life of primary and standby nodes. Then, in order to solve the problem of weak matching in the process of one update, a node update mechanism based on double matching is designed by introducing the sorting mechanism. By selecting the nodes to be updated from the standby nodes, it is used to monitor the energy transmission quality and safety of regional nodes, and further reduce the energy consumption level of the region. The simulation results show that the proposed algorithm is similar to the widely used cluster based approach for minimizing energy consumption by reducing travel time of mobile element in WSN (cba-e algorithm) and an improved cluster routing protocol (an improved) which is widely used in wireless sensor networks Cluster routing protocol to increase the lifetime of wireless sensor network (IIL algorithm), this algorithm has the characteristics of low node update frequency, can significantly improve the network lifetime, has a strong practical guidance value, can be widely promoted and used in practice.

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