Abstract: Some of the existing topology generation algorithms need node location in general，which not only increase the complexity of the algorithm and node energy consumption，but also can not make a very good balance of energy and nodes degree.This paper proposes a new kind of rain-clustering algorithm simulating raining process.In the raining，rain hitting on the ground produces the sprays of the rain and forms waves.Using the so-called rain-clustering algorithm achieves the targeted wireless sensor networks without the support of node location operation，and makes the node degree balance and suitable uses of the node energy.

Key words: wireless sensor networks, clustering algorithm, node energy, node degree

摘要： 现有的一些拓扑生成算法需要进行节点定位，既增加了算法复杂度和节点能量消耗，也不能很好地使能量和节点度均衡。提出一种新的“雨点”式分簇算法，模拟下雨时雨点打落在地面后会飞溅水花并溅出水波的效果。利用构建的“雨点”模型实现的无线传感器网络无需定位支持的分簇操作，可以使节点的剩余能量与节点度达到均衡。

关键词: 无线传感器网络, 分簇算法, 节点能量, 节点度