Abstract: A routing algorithm based on minimal energy-consuming path in wireless sensor networks is proposed.By choosing low energy-consuming cluster-head，the dissipation of energy is reduced；the design of minimal energy-consuming path，this scheme design can further reduce the energy consumption of multi-hop transmitting sensing information，improve the lifespan of the network.

Key words: energy-consuming, life time, minimal energy-consuming path

摘要： 提出了一种传送能量最小MEP（Minimal Energy-consuming Path）的无线传感网络路由算法，该算法选择能使簇内节点总功耗小的节点作为簇头，避免Leach算法随机选择簇头导致簇内节点总功耗过大的弊端；在构造簇间路由树时，采用了距离幂作为代价权，克服了以最短长度距离作为代价权不能保证转发数据总功耗最小的弱点，实现了在多跳转发数据时总的传送能量最小。仿真结果证明MEP能够有效地延长网络的生命周期。

关键词: 能量消耗, 生存周期, 最小能量路径