Advances in Computer Science : an International Journal (ACSIJ)
Lifetime enhancement has always been of crucial importance for energy constrained sensor network due to resource limitations of sensor nodes. The protocol play important roll, which can minimize the delay while offering high energy efficiency and long span of network lifetime. This paper concentrate on energy optimization by introducing a novel and an adaptive clustering algorithm that is fuzzy logic and mobile sink based. In this paper, a three-level fuzzy logic is utilized to evaluate the priority of sensors to become a cluster head. In the first level, the qualified nodes are selected based on their residual-energy and density of them.