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针对无线传感器网络多对一的路由特点和LEACH(low-energy adaptive clustering hierarchy,LEACH)协议簇建立阶段的信息交换特性,提出了一种基于距离矢量的改进路由算法。该算法不再从邻居节点开始初始化路由表,也不需要建立网络中任意两点之间的路由路径,在簇的建立阶段,通过簇首信息的广播,各簇首获得其他簇首的一些信息,这可以用来简化协议,从而降低了协议实现所需的能耗。在J-sim仿真平台上对算法进行了仿真研究。仿真结果表明本研究提出的改进路由算法能够显著延长网络的生命周期,并使死亡节点的分布更均匀;在考虑电路损耗、CUP损耗和状态转换等方面的能耗后,该算法仍具有改善无线传感器网络性能、延长网络生命周期的潜能。
Aiming at the characteristics of many-to-one routing of wireless sensor networks and the information exchange characteristics during LEACH (Low-energy Adaptive Clustering Hierarchy) stage, an improved routing algorithm based on distance vector is proposed. The algorithm no longer initializes the routing table from the neighbor nodes, nor does it need to establish a routing path between any two points in the network. During the establishment of the cluster, each cluster head obtains some information of other cluster heads through broadcasting of cluster head information , Which can be used to simplify the protocol, thereby reducing the energy required to implement the protocol. The algorithm is simulated on J-sim simulation platform. The simulation results show that the improved routing algorithm proposed in this study can significantly extend the life cycle of the network and make the distribution of death nodes more uniform. After considering the energy consumption of circuit loss, CUP loss and state transition, the algorithm still has the advantages of improving wireless Sensor network performance, to extend the potential of the network life cycle.