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LEACH协议是一种被广泛应用到无线传感器网络中的路由算法。针对经典LEACH算法存在簇头节点空间分布不均匀和传感器节点能耗不均衡等缺点。提出了一种改进LEACH协议,新的路由算法首先利用Fuzzy C-Means聚类算法和节点位置信息将整个网络分割为多个簇;在每个簇中再利用考虑了节点剩余能量的LEACH算法完成单簇头的选举,以完成数据簇内收集和双跳传输。计算机仿真表明,改进的LEACH协议能均衡网络节点能耗,有效延长整个网络的生存周期。
LEACH protocol is a routing algorithm widely used in wireless sensor networks. For classical LEACH algorithm, there are some shortcomings such as uneven spatial distribution of cluster head nodes and unbalanced energy consumption of sensor nodes. An improved LEACH protocol is proposed. The new routing algorithm first uses the Fuzzy C-Means clustering algorithm and node location information to segment the entire network into multiple clusters. In each cluster, the LEACH algorithm that takes into account the remaining energy of nodes is used The election of a single cluster of heads to complete the data cluster within the collection and double hop transmission. Computer simulation shows that the improved LEACH protocol can balance the energy consumption of network nodes and effectively extend the life cycle of the entire network.