基于DTN的无线传感网消息分发模型  

Message Distribution Model for Wireless Sensor Network(WSN)Based on Delay Tolerant Network(DTN)

作　　者：王海涛 高晓燕 WANG Haitao;GAO Xiaoyan(Jinshen College,Nanjing Audit University,Nanjing 210023,China)

机构地区：[1]南京审计大学金审学院,南京210023

出　　处：《指挥信息系统与技术》2021年第1期86-90,共5页Command Information System and Technology

基　　金：国家自然科学基金面上(62071687)资助项目。

摘　　要：针对无线传感网(WSN)设计了一种基于分簇网络结构的延迟容忍网络(DTN)消息分发模型。该模型有效结合了传统的发布订阅模型和分簇网络结构,通过遗传蚁群算法改进路由协议,以便快速低成本地寻找网络节点间的最短路径;采用基于消息副本和内容兴趣的缓存管理策略,以提高消息投递率、控制投递时延和降低控制开销。最后,通过仿真试验初步验证了该模型的有效性。Aimed at the wireless sensor networks(WSN),a message distribution model for delay tolerant network(DTN)based on clustering network structure is designed.The model effectively combines the traditional publish subscribe model and the clustering network structure.Through the genetic ant colony algorithm,the routing protocol is improved.Thus,the shortest path between the network nodes is searched rapidly and cheaply.The cache management strategy based on the message copy and the content interest is adopted to enhance the message delivery ratio,to control the delivery delay and to reduce the control overhead.Finally,by simulation experiments,the efficiency of the model is primarily verified.

关 键 词：无线传感网 延迟容忍网络 消息分发 发布/订阅模型 缓存管理 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]