WSN Clustering Algorithm Based on Cluster Head Reappointment

Recently, in order to improve the energy efficiency of Wireless Sensor Network, wide research has been carried out. At present, most of the presented methods are based on the assumption that nodes can be elected cluster heads with the uniform probability in each round. So it´s hard to implement those methods. Based on the theory that node has fixed radio wave radius, this paper present a clustering algorithm based on cluster head reappointment that cluster heads maintain the election right to be cluster heads in several rounds. According to the simulation of the presented protocol, we have proved the energy saving efficiency and the implementation in real wireless sensor networks.