无线传感器网络簇间节能路由算法

针对基于分簇网络的无线传感器网络簇间路由协议,让簇首和Sink节点直接通信或通过簇首节点转发数据造成能耗不均,节点过早死亡的缺陷。文中提出一种基于网关节点模型的无线传感器网络簇间路由算法,通过簇头与网关节点、网关节点自身建立虚电路,制定存储转发路由,将数据转发给Sink节点。并引入延时等待机制,增强了簇间信息的融合度,此算法适用于大规模无线传感器网络,有良好的可扩展性。仿真表明在能量节省等性能上与传统簇间路由算法相较有较大提高。

Study on Power-Scant Cluster-Level Routing Algorithm of WSN based on Clustered Network

Cluster level routing protocol of WSN based on clustered network forces cluster head nodes to directly communicate with Sink nodes or makes cluster head nodes transmit data, thus causing unequal energy consumption and early death of the nodes. This paper proposes a gateway nodes model-based cluster-level routing algorithm of WSN. In this model, the virtual circuit is built between cluster head nodes and gateway nodes, and in gateway nodes itself. The store-send routing is established by cluster head nodes and gateway nodes, so the data could transmit to Sink node efficiently. The time delay mechanism is also introduced in this algorithm, thus to enhance interfusion degree of the cluster-level information. This algorithm is applicable to great-scale wireless sensor network, and has good expansibility. The simulation shows that the new algorithm is of great improvement on energy consumption as compared with traditional cluster-level routing protocol.