Advances in Computer Science : an International Journal (ACSIJ)
Sensor nodes should be made cheap and small due to application modes. As a result, the nodes always suffer from limited energy source. On the other hand, increased network operation period is considered as a measure to evaluate the performance of sensor networks, which motivates the designers to provide a method to increase the lifetime of sensor networks. So far, various methods were provided to manage and reduce energy consumption in a sensor network. Clustering is the most prominent method in this regard.