Date Added: Apr 2012
In recent years, Wireless Sensor Networks (WSNs) have gained increasing attention from researchers and scholars. One of the major issues in wireless sensor network is developing an energy-efficient clustering protocol. Hierarchical clustering algorithms are very important in increasing the network's life time. Each clustering algorithm is composed of two stages, the setup stage and steady stage. The most important point in this algorithm is cluster head selection. Cluster head selection is important because, a good clustering guarantees energy efficiency and load balancing in the network.