基于事件频度的WSN多层次分簇算法

Multi-level Clustering Algorithm Based on Frequency of Event for WSN

由于无线传感器网络自身的特性,其不可避免存在热区。在LAECH及其现有改进算法的基础上提出了基于事件频度的多层次分簇算法(MCAFE)。MCAFE根据监测区域内的事件频度来确定最优簇首的数目而不是固定值。由于采用全局簇群分布式控制、局部子簇群集中式管理方法,因此在不同层次簇梯度分布、同层次簇均匀分布状态下进行簇分裂或子簇整合。最后对NS2上的仿真结果进行了分析。

Because of WSN＇s own characteristics,it inevitably has hot areas.Multi-level Clustering Algorithm based on the Frequency of Event （MCAFE） is put forward after discussing LEACH and other kinds of improved algorithm based it.MCAFE can determine the optimal number of cluster rather than a fixed value according to the event frequency of monitoring and clustering.Because it adopts the method with global clusters of distributed management and local child clusters of center control,clusters are divided or sub-clusters are integrated in the state of multi-level clusters of gradient distribution and same-level ones of uniform distribution.It analyzes the simulated result through the NS2 at last.