带数据融合的无线传感器网络QoS路由算法  

Network QoS routing algorithm of wireless sensor with data aggregation

作　　者：张擎[1] 柴乔林[1] 王朋[1] 

机构地区：[1]山东大学计算机科学与技术学院,山东济南250061

出　　处：《计算机工程与设计》2008年第4期839-842,845,共5页Computer Engineering and Design

摘　　要：针对无线传感器网络以数据为中心的特点以及不同业务对QoS的不同要求,提出了一种结合数据融合的QoS路由算法(DAIQoS算法)。该算法借鉴TopDisc协议的分簇路由过程对数据进行融合处理。在此基础上借鉴定向扩散(DD)协议中梯度路由的思想,通过维护簇内和簇间两个梯度场建立到sink节点的多条最短路径。选择既能满足数据的QoS要求,又能尽量对其进行融合处理的路径转发数据。仿真实验结果表明,DAIQoS算法能够在满足数据QoS要求的同时有效减少冗余数据,节约能源。Considering the data-centric feature of wireless sensor network and different services＇ different QoS requirements, a data aggregation included QoS routing algorithm （DAIQoS） is proposed. This algorithm uses clustered routing process in TopDisc protocol to aggregate data. Meanwhile, gradient routing concept in directed diffusion （DD） protocol is referenced, intra and inter-cluster gradients to build multiple min-hop routes between sensor nodes and the sink node are constructed. Data is routed through the route that can satisfy its QoS requirement. At the same time, try best to select the route through which data can be aggregated. According to simulation results, this algorithm can both satisfy QoS requirement of different services and decrease the number of redundant data, saves energy.

关 键 词：无线传感器网络 数据融合 服务质量 分簇 路由算法 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]