Cluster head selection for homogeneous Wireless Sensor Networks

Wireless sensor network (WSN) is an active area of research today. A WSN consists of a number of sensor nods each with limited energy, bandwidth, storage, and processing capability. Clustering is one of the basic approaches for designing energy-efficient, robust and highly scalable distributed sensor networks. One of the approaches to enhance the lifetime of WSN is to allow only some nodes in a cluster of sensor nodes, called cluster heads, to communicate with the base station. In this paper, we take a unique look at the cluster head election problem, specifically concentrating on Homogeneous Wireless Sensor Networks. Our approach for cluster-based network organization is based on a Voronoi diagram that favor nodes deployed in densely populated network areas as better candidates for cluster head nodes, active sensor nodes and routers.