一种无线传感网络能量感知的事件检测算法

Energy-Aware Event Detection Algorithm in WSNs

针对无线传感网中事件检测节点能量消耗过快和不均匀问题,提出了一种动态可调的能量感知事件检测算法AEEDA。该算法采用分布式判别和分簇思想将网络节点分成许多簇结构,簇首负责汇聚事件检测的数据。簇内事件区域检测是由簇首根据事件空间相关性进行判别;跨簇事件区域检测是相邻簇间簇首根据簇边界节点数据进行判别。算法运行过程中,根据簇首节点的能耗进行动态调整簇首,以平衡节点的能耗。实验结果表明所提算法在检测精度、能耗均衡性和生命周期方面具有优势。

Aiming at the problem that energy of nodes is consumed excessively and unevenly in event detection in WSNs,this paper presented a novel adjusted energy-aware event detection algorithm,called AEEDA.AEEDA divided nodes into many clusters based on distributed discriminant and clustering.The cluster head was responsible for aggregating the data of event detection.The event detection in the cluster was determined by the cluster head according to the spatial correlation of the event,and the event detection across the clusters was based on the data of the boundary nodes.When the algorithm is running,the cluster head is dynamically adjusted according to the energy consumption of the cluster head node to balance the energy consumption of the nodes.The experimental results show that the proposed algorithm has advantages in detection accuracy,energy consumption balance and life cycle.