Cluster-Head Selection Mechanism in Scenario with Uneven Clustering

Aiming at the shortcomings of the low energy adaptive clustering hierarchy (LEACH) routing protocol, an improved protocol in scenario with uneven clustering is proposed. In order to choose the right cluster-head, it considers many factors, including the residual energy of sensor nodes, the distance between the nodes and the base station, the difference of each node and the time of the node as a cluster-head. Compared with LEACH protocol, the new protocol is more energy-saving, and can realize more balanced energy consumption. Simulation results show the effectiveness of the presented protocol.