Dynamic selection of cluster head in cluster of cluster heads within the cluster in Heterogeneous Wireless Sensor Network

摘要

Wireless sensor networks are networks of large quantities of compact micro-sensors with wireless communication capability. Innovative techniques that improve energy efficiency to prolong the network lifetime are highly required. Clustering is an efficient mechanism to increase the network scalability and lifetime. There is lot of challenges, in which one is to use efficiently limited energy provided. In this paper, we propose an efficient technique in which cluster head is dynamically selected from the cluster of cluster heads within the cluster. Within the cluster multiple cluster heads are selected and after certain rounds, when energy level becomes less than or equals to normal nodes within the clusters, normal nodes will take the charge and to become cluster heads. The mastership of cluster heads rotates continuously, makes the network without halt. It will make the sensor nodes to use their energies efficiently and increase the overall network lifetime.