Optimal Design on Clustering Routing Protocol for Wireless Sensor Network ?

Due to the limited energy for sensor nodes in wireless sensor network (WSN), the clustering for nodes becomes an effective scheme to save energy, but it is premature to appear the phenomenon of blind nodes because of ignoring the state information for neighbor nodes in determining cluster-head, accordingly leads to waste energy. So a novel clustering protocol based on evolutionary computation is studied in accordance with the point of energy saving optimization, which includes the construction of fitness function using the information of neighbor nodes within the cluster energy and the distribution, and determining cluster-head using Particle swarm optimization (PSO). The results of simulation experiment show that the improved protocol can effectively avoid the blind nodes phenomenon in LEACH protocol, can save energy and prolong the network lifetime.