A Head-Node Selection Scheme for Mobile Wireless Sensor Networks

Clustering is a technique that can effectively reduce the energy consumption of sensor nodes. In self-organizing clustering strategies, sensors elect themselves to be cluster-heads independently. This cannot guarantee the even distribution of cluster-heads over the entire sensor-network field or even the election of an optimal percentage of cluster-heads. We proposed Two-Tier Clustering in [1] to solve these problems. However, this process still generates head-nodes that are distributed too closely. In this paper, we suggest adjustedTTC to achieve the even distribution of cluster-heads in a network field. Our scheme eliminates head-nodes if there are two or more adjacent at the first step and additionally generates an equivalent number of head-nodes at the second step. Our Two-Tier Clustering results in reduced data loss and increased energy efficiency by reducing the number of Advertisement Message non-receiving