Optimization of Cluster Heads Selection by Imperialist Competitive Algorithm in Wireless Sensor Networks

Sensor Networks are one of the most important distributed networks which are used in the wide range of applications. Energy is one of the major limitations of wireless sensor networks, which has direct impact on the network's life time. LEACH protocol is one of the most well- known Clustering schemes that select cluster heads randomly. Clustering is an effective topology control Approach in wireless sensor networks. In this paper, we proposes new clustering algorithm that using an imperialist competitive algorithm to select cluster heads in LEACH algorithm. Simulation results show proposed algorithm can prolong the network lifetime efficiently compared with LEACH protocol.