一种基于休眠机制和簇化树的WSN能量有效路由

摘要

Using the energy of sensor nodes efficiently on prolonging the network lifetime is a chief challenge for designing rou-ting protocols.Therefore, the Sleep Mechanism and Tree-base Clustering Energy-efficient Routing ( SMTCER) protocol was pro-posed in this paper.The sleep mechanism was used in SMTCER protocol, some nodes are in sleep mode.Then the network was di-vided into clusters, and cluster head was chosen in every cluster, and the cluster head collected the data.Sometime, the minimum spanning tree-cluster was constructed by the Prim algorithm.The network lifetime using our proposed protocol can be improved a-bout 250% and 23% compared to low-energy adaptive clustering hierarchy ( LEACH) and power-efficient gathering in sensor infor-mation system ( PEGASIS) , respectively.%有效地使用传感节点的能量进而延长网络寿命成为设计无线传感网路由协议的一项挑战性的工作。为此，提出基于休眠机制和簇化树的能量有效路由SMTCER( Sleep Mechanism and Tree-base Clustering Energy-efficient Routing)协议。 SMTCER协议引用休眠机制，让部分传感节点休眠，并将传感网络进行簇划分，每个簇里产生一个簇头，由簇头收集数据。同时，利用普里姆算法建立最小Spanning树，传感节点沿着树传输数据。最终，由簇头融合数据，并向基站传输。仿真结果表明：提出的SMTCER协议能够有效利用能量，比LEACH协议和PEAGSIS协议的网络寿命分别提高了250%、33%。